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Google Nest Thermostat vs Sensi ST55: 119 Highlights & 48 Differences — So, Which Thermostats Actually Works Better

Deciding on display size or scheduling style? Nest offers modern and adaptive controls, while Sensi focuses on ease with guided guides and IFTTT. Trying to decide between Google Nest Thermostat and Sensi ST55? This thermostats comparison covers features, design, and key depth, mounting type, wall plate & detachable unit buyers care about.

71 Points
Google Nest Thermostat
67 Points
Sensi ST55
vs

Highlights 151

No extras. Just what matters.
71 Points
vs
67 Points

Why is Google Nest Thermostat better than Sensi ST55 ?

Scroll down for more facts

Google Nest Thermostat vs. Sensi ST55: Smart Thermostats Face Off

When it comes to smart thermostats tailored for residential use, the Google Nest Thermostat and Sensi ST55 stand out as two strong contenders. Both models offer smart HVAC control and feature compatibility with common heating and cooling systems such as gas furnaces, central AC, and heat pumps. They also support voice assistant integration and enable cloud connectivity for remote thermostat management.

However, significant differences in display size, scheduling methods, sensor functionality, and installation design separate these two options. For instance, the Nest sports a compact, sleek 2.4-inch proximity-activated display, while the Sensi boasts a larger 5-inch screen with guided scheduling. The Nest includes motion sensors and adaptive scheduling that learns your routine, whereas Sensi integrates IFTTT but lacks adaptive capabilities. Both units offer eco modes and smart home scenes, catering to users intent on energy efficiency and automation.

Distinct Advantages of the Google Nest Thermostat

The Google Nest Thermostat stands out for its innovative design and smart automation. Its proximity-activated display ensures the 2.4-inch screen lights up when you approach, conserving energy when idle. This model's adaptive scheduling is a compelling feature that learns your habits over time, reducing the need for frequent manual adjustments and helping lower energy bills. The incorporation of a motion sensor further enhances its responsiveness by sensing occupancy, automatically adjusting settings to optimize comfort and savings.

Powered by AAA batteries, it promises reliable, year-long operation, backed by US manufacturing quality. Its slightly thinner 1.07-inch depth and detachable unit design allow for flexible installation and easy upgrades. Moreover, the Nest supports smart home scenes, letting users control multiple devices with a single command. Although it does not support IFTTT integration, its seamless user interface and adaptive features compensate well for typical smart home workflows.

Sensi ST55's Noteworthy Perks and Compatibility

The Sensi ST55 is a compelling alternative, especially for those who prefer straightforward setup experiences and larger displays. Its 5-inch screen is noticeably easier to read from a distance compared to Nest's smaller display, aiding users who want simplicity in daily interaction. The thermostat embraces IFTTT connectivity, a feature that broader smart home enthusiasts will appreciate for creating customized automation scenarios beyond the native app's capabilities.

Unlike the Nest, which incorporates proximity sensors, the Sensi opts for a direct always-on display, complemented by a slightly thinner 1-inch depth and a non-detachable unit, which could make the installation a bit more involved but ensures a solid wall mount. It's powered by AA batteries, covering the same 12-month battery life as Nest.

Still, its broader operating voltage range (20-30 VAC) makes it compatible with a wider variety of HVAC systems, including both centralized and split setups. While it doesn't offer adaptive scheduling or motion sensing, Sensi features a guided scheduling process aimed at helping users with easy temperature plan creation. The thermostat also supports smart home scenes and eco mode to optimize energy usage efficiently.

Quick Take

The Nest Thermostat thrives with its adaptive learning capabilities, motion-sensor technology, and a sleek display that appeals to users who want high-tech automation without fuss. Meanwhile, the Sensi ST55 shines through its bigger screen, simple guided scheduling, and enhanced IFTTT support, making it excellent for homeowners invested in diverse smart home integrations.

Bottom Line Recommendation

Both the Google Nest Thermostat and Sensi ST55 deliver reliable smart climate control designed for residential comfort and energy savings. If you prefer an elegant, responsive thermostat that adapts to your lifestyle with intelligent automation, the Google Nest Thermostat is the superior choice. On the other hand, if a larger display and extensive smart home connectivity via IFTTT matter more to you, the Sensi ST55 is worth considering despite its slightly higher price variability.

Verdict

  • Winner: Google Nest Thermostat - Offers a sleek adaptive design with motion sensing and a savvy scheduling system for enhanced energy efficiency.
  • Runner-up: Sensi ST55 - Provides a user-friendly, large display and IFTTT integration that appeals to those seeking broader smart home compatibility.

Comparisons 19

Two enter. One leaves your cart.

Related comparisons 19

Because one duel is never enough.

Comparisons & Facts 151

Side by side. The numbers. The features. No drama.

Is Google Nest Thermostat better than Sensi ST55? It depends on what you need. Our full thermostats comparison looks at everything from specs and value to user experience — so you can make the smarter pick between these two thermostats.

General Information 17

Intended Use

What is the intended use of this thermostat?

22 Google Nest Thermostat 0 Votes Residential

25 Sensi ST55 0 Votes Residential

Google Nest Thermostat
vs
Sensi ST55
Intended Use

Both Google Nest Thermostat and Sensi ST55 are intended for Residential use, making each well-suited for home heating and cooling needs without preference for commercial settings.

Specifies the primary usage environment.

Color

What color is the thermostat?

77 Google Nest Thermostat 0 Votes Snow

75 Sensi ST55 0 Votes White

Google Nest Thermostat
vs
Sensi ST55
Color

The Color specification shows that the Google Nest Thermostat is available in Snow, while the Sensi ST55 comes in White. Both offer neutral colors suitable for most homes, but Nest's subtle Snow may blend better in modern interiors.

Indicates the exterior color of the thermostat for visual and aesthetic matching.

Country of Manufacture

Where is this thermostat manufactured?

92 Google Nest Thermostat 0 Votes US

95 Sensi ST55 0 Votes US

Google Nest Thermostat
vs
Sensi ST55
Country of Manufacture

Manufactured in the US, both Google Nest Thermostat and Sensi ST55 ensure adherence to domestic quality standards, making them reliable options for buyers prioritizing local production.

Indicates the country where the thermostat is manufactured or assembled.

Programmability Type

What type of programmability does it support?

72 Google Nest Thermostat 0 Votes 7-Day

75 Sensi ST55 0 Votes 7-Day

Google Nest Thermostat
Google Nest Thermostat

The thermostat offers 7-day programmability, allowing users to customize settings for each day of the week independently.

Sensi ST55
Sensi ST55

Programmability for a full 7-day cycle enables distinct settings for every day, offering comprehensive energy management and comfort.

Defines scheduling and automation capability.

Voice Assistant

Does it support voice assistants?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Google Nest Thermostat
vs
Sensi ST55
Voice Assistant

Voice Assistant support is available on both the Google Nest Thermostat and Sensi ST55, enabling voice control for convenient hands-free operation and enhancing smart home integration equally.

Indicates compatibility with voice assistants.

Mobile App

Can it be controlled using a mobile app?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Google Nest Thermostat
Google Nest Thermostat

Includes Mobile App support for remote monitoring and control via smartphone.

Sensi ST55
Sensi ST55

A mobile app is available for this model, offering remote control capabilities from smartphones or tablets. This enhances convenience and flexibility for users.

Confirms whether the thermostat can be controlled via mobile app.

User Interface Type

What type of user interface does it have?

92 Google Nest Thermostat 0 Votes Touchscreen

35 Sensi ST55 0 Votes Button-Based

Google Nest Thermostat
Google Nest Thermostat

The user interface is a touchscreen, offering direct and easy interaction.

Sensi ST55
Sensi ST55

The user interface is button-based, which provides tactile feedback and is intuitive for users who prefer physical controls over touchscreens.

Describes the primary interface design.

Language Support

What languages are supported?

75 Google Nest Thermostat 0 Votes English, Spanish, French

78 Sensi ST55 0 Votes English, Spanish, French

Google Nest Thermostat
Google Nest Thermostat

User interface is available in English, Spanish, and French to cater to diverse users.

Sensi ST55
Sensi ST55

This thermostat supports multiple languages including English, Spanish, and French, making it accessible to a diverse range of users.

Lists supported display or app languages.

Product Type

What type of product is this?

42 Google Nest Thermostat 0 Votes Thermostat

45 Sensi ST55 0 Votes Thermostat

Google Nest Thermostat
Google Nest Thermostat

This product is classified as a thermostat, designed for temperature control.

Defines the core product classification.

Thermostat Category

What category of thermostat is this?

92 Google Nest Thermostat 0 Votes Smart

95 Sensi ST55 0 Votes Smart

Google Nest Thermostat
vs
Sensi ST55
Thermostat Category

Both devices fall under the Smart Thermostat category, highlighting their modern features and connectivity; thus either is a solid choice for users seeking intelligent climate control.

Indicates the functional category of the thermostat.

Installation Location

Where can this thermostat be installed?

42 Google Nest Thermostat 0 Votes Indoor

45 Sensi ST55 0 Votes Indoor

Sensi ST55
Sensi ST55

Designed exclusively for indoor installation, suitable for controlled interior environments.

Describes where the thermostat is designed to be installed.

Smart Thermostat

Is this a smart thermostat?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Sensi ST55
Sensi ST55

This device is a smart thermostat, meaning it offers advanced connectivity and automated management beyond basic programmable functions.

Indicates whether the thermostat has smart connectivity features.

Physical & Installation 17

Depth

What is the depth of the thermostat?

1.07 inch 1 Votes
Google Nest Thermostat
1 inch 0 Votes
Sensi ST55

Google Nest Thermostat
vs
Sensi ST55
Depth

The Depth of Google Nest Thermostat is 1.07 inches compared to 1 inch on the Sensi ST55; this slight difference of 0.07 inches makes the Sensi ST55 a bit slimmer, potentially better for flush mounting in tight spaces.

Measures how far the thermostat protrudes from the wall.

I like the depth of the Google Nest Thermostat it feels slimmer and more modern on the wall for me.

See more

Mounting Type

How is the thermostat mounted?

92 Google Nest Thermostat 1 Votes Wall-Mounted

95 Sensi ST55 0 Votes Wall-Mounted

Google Nest Thermostat
vs
Sensi ST55
Mounting Type

The Mounting Type for both the Google Nest Thermostat and Sensi ST55 is Wall-Mounted, allowing similar installation processes and space-saving setups on home walls.

Specifies how the thermostat is mounted.

Both mount on the wall but I appreciate the Nest also has a detachable unit which is handy.

See more

Wall Plate

Is a wall plate included?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Google Nest Thermostat
vs
Sensi ST55
Wall Plate

Wall Plate is included with both Google Nest Thermostat and Sensi ST55, simplifying installation and ensuring a neat finish for wall mounting.

Indicates whether a wall plate is included.

Detachable Unit

Is the unit detachable?

Yes 0 Votes Google Nest Thermostat

No 0 Votes Sensi ST55

Google Nest Thermostat
vs
Sensi ST55
Detachable Unit

Google Nest Thermostat includes a Detachable Unit feature, whereas Sensi ST55 does not; this offers Nest users easier servicing or portability, enhancing maintenance convenience.

Shows if the unit can be detached from base.

Weight

How much does the thermostat weigh?

0.62 lbs 0 Votes
Google Nest Thermostat
0.85 lbs 0 Votes
Sensi ST55

Google Nest Thermostat
Google Nest Thermostat

Weighs 0.62 lbs (0.28 kg), making it lightweight and easy to handle during installation.

Sensi ST55
Sensi ST55

The thermostat weighs 0.85 lbs (0.39 kg), making it lightweight and easy to handle during installation.

Shows how heavy the thermostat unit is.

Width

What is the width of the thermostat?

3.31 inch 0 Votes
Google Nest Thermostat
5 inch 0 Votes
Sensi ST55

Sensi ST55
Sensi ST55

The width of the thermostat is 5 inches (12.7 cm), providing a moderate footprint suitable for most wall spaces.

Indicates the horizontal size of the thermostat.

Height

What is the height of the thermostat?

3.31 inch 0 Votes
Google Nest Thermostat
3.5 inch 0 Votes
Sensi ST55

Sensi ST55
Sensi ST55

The thermostat height is 3.5 inches (8.89 cm), contributing to a compact and unobtrusive wall presence.

Indicates the vertical size of the thermostat.

Trim Plate Compatibility

Is it compatible with trim plates?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Google Nest Thermostat
Google Nest Thermostat

Compatible with various trim plates to match different installation or aesthetic requirements.

Shows if trim plates can be added for coverage.

Installation Difficulty Level

How difficult is installation?

92 Google Nest Thermostat 0 Votes Easy

95 Sensi ST55 0 Votes Easy

Sensi ST55
Sensi ST55

Installation difficulty level is easy, indicating that typical users or technicians can install this thermostat without special tools or extensive expertise.

Rates how complex installation is.

Surface Mount

Does it support surface mounting?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Google Nest Thermostat
Google Nest Thermostat

This thermostat features a surface mount design for straightforward wall installation.

Indicates surface mount compatibility.

Installation Orientation

What orientation can it be installed in?

42 Google Nest Thermostat 0 Votes Portrait

45 Sensi ST55 0 Votes Portrait

Defines allowed mounting orientation.

Wiring Requirement

What wiring is required for this thermostat?

22 Google Nest Thermostat 0 Votes Battery

50 Sensi ST55 0 Votes No C-Wire, Low Voltage

Specifies the wiring configuration required for proper installation.

Display & Controls 18

Display Size

How large is the display?

2.4 inch 0 Votes
Google Nest Thermostat
5 inch 1 Votes
Sensi ST55

Google Nest Thermostat
vs
Sensi ST55
Display Size

Display Size differs significantly: Google Nest Thermostat has a 2.4-inch screen versus Sensi ST55's larger 5-inch display. Sensi's bigger display may improve readability and easier navigation.

Indicates the diagonal size of the display.

The display size on the Sensi ST55 is way bigger so if you want something easy to see from across the room this wins.

See more

Control Lock

Is there a control lock feature?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Google Nest Thermostat
vs
Sensi ST55
Control Lock

Control Lock is present on both Google Nest Thermostat and Sensi ST55, preventing accidental changes and enhancing security of thermostat settings.

Prevents unauthorized setting changes.

Child Lock

Does it have a child lock?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Google Nest Thermostat
vs
Sensi ST55
Child Lock

Child Lock functionality is available on both devices, offering safety by restricting unauthorized access to settings, making either thermostat suitable for households with children.

Prevents accidental changes by children.

Proximity Activation

Does the display activate by proximity?

Yes 0 Votes Google Nest Thermostat

No 0 Votes Sensi ST55

Google Nest Thermostat
vs
Sensi ST55
Proximity Activation

Google Nest Thermostat features Proximity Activation, activating controls when nearby, while Sensi ST55 lacks this. Nest's feature improves user convenience by reducing manual interactions needed.

Activates the screen when someone approaches.

Touchscreen

Does it have a touchscreen?

Yes 0 Votes Google Nest Thermostat

No 0 Votes Sensi ST55

Google Nest Thermostat
Google Nest Thermostat

Touchscreen interface provides an intuitive and user-friendly way to adjust settings.

Shows whether touch input is supported.

Backlight

Is the display backlit?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Sensi ST55
Sensi ST55

Backlight is included to improve display readability in low light conditions without needing external lighting.

Indicates if the display is backlit.

Always-On Display

Is the display always on?

No 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Sensi ST55
Sensi ST55

An always-on display provides continuous visibility of settings and environmental data without the need to activate the screen manually.

Shows key info without waking the device.

Physical Buttons

Does it have physical buttons?

No 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Sensi ST55
Sensi ST55

Physical buttons are available for user input, offering tactile control options alongside possible touchscreen or app interfaces.

Indicates presence of tactile buttons.

Screen Resolution

What is the screen resolution quality?

42 Google Nest Thermostat 0 Votes Standard

45 Sensi ST55 0 Votes Standard

Sensi ST55
Sensi ST55

The screen resolution is standard, providing clear visuals without excessive power consumption.

Describes the visual clarity and sharpness of the display.

Display Type

What type of display does it use?

72 Google Nest Thermostat 0 Votes LCD

80 Sensi ST55 0 Votes LED

Defines the underlying display technology.

Adjustable Brightness

Can you adjust the brightness?

Yes 0 Votes Google Nest Thermostat

No 0 Votes Sensi ST55

Google Nest Thermostat
vs
Sensi ST55
Adjustable Brightness

Adjustable Brightness is supported only by Google Nest Thermostat, not by Sensi ST55. This allows Nest users to customize display visibility based on lighting conditions, enhancing usability.

Allows users to change screen brightness.

Color Display

Is it a color display?

Yes 0 Votes Google Nest Thermostat

No 0 Votes Sensi ST55

Indicates support for multiple colors on screen.

Connectivity & Smart Features 17

IFTTT

Is IFTTT supported?

No 0 Votes Google Nest Thermostat

Yes 1 Votes Sensi ST55

Google Nest Thermostat
vs
Sensi ST55
IFTTT

IFTTT compatibility is present only in Sensi ST55 but absent in Google Nest Thermostat, giving Sensi users more flexible automation linking with other smart devices via IFTTT applets.

Enables automation with third-party services.

IFTTT support on the Sensi ST55 really adds more automation options than the Nest offers here.

See more

Zigbee

Does it support Zigbee?

No 0 Votes Google Nest Thermostat

No 0 Votes Sensi ST55

Google Nest Thermostat
vs
Sensi ST55
Zigbee

Zigbee support is absent in both Google Nest Thermostat and Sensi ST55, indicating these devices are not designed to integrate with Zigbee smart home protocols.

Indicates compatibility with Zigbee networks.

Z-Wave

Does it support Z-Wave?

No 0 Votes Google Nest Thermostat

No 0 Votes Sensi ST55

Google Nest Thermostat
vs
Sensi ST55
Z-Wave

Both thermostats do not support Z-Wave communication, meaning neither is compatible with Z-Wave smart home ecosystems, so users must rely on other connectivity options.

Indicates compatibility with Z-Wave systems.

API Access

Is API access available?

No 0 Votes Google Nest Thermostat

No 0 Votes Sensi ST55

Google Nest Thermostat
vs
Sensi ST55
API Access

Neither Google Nest Thermostat nor Sensi ST55 provide API Access, limiting possibilities for developers to create custom integrations directly with the thermostats.

Indicates availability of developer APIs.

Wi-Fi Band

Which Wi-Fi bands are supported?

45 Google Nest Thermostat 0 Votes 2.4GHz, 5GHz

31 Sensi ST55 0 Votes 2.4GHz

Google Nest Thermostat
Google Nest Thermostat

Supports both 2.4GHz and 5GHz Wi-Fi bands for flexible network connectivity.

Sensi ST55
Sensi ST55

Wi-Fi band support includes 2.4 GHz, which is widely compatible with most routers and offers good range for home connectivity.

Specifies supported Wi-Fi frequency bands.

Wi-Fi Connectivity

Does the thermostat support Wi-Fi connectivity?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Google Nest Thermostat
Google Nest Thermostat

Wi-Fi Connectivity enables remote control and integration with smart home systems.

Indicates whether the thermostat can connect to a Wi-Fi network for smart features and remote control.

Firmware Update Method

How are firmware updates performed?

77 Google Nest Thermostat 0 Votes OTA

82 Sensi ST55 0 Votes OTA

Sensi ST55
Sensi ST55

Firmware updates are performed over the air (OTA), allowing users to keep the device up to date conveniently without needing physical connections.

Describes how firmware updates are applied.

Data Encryption

Is data encrypted?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Google Nest Thermostat
Google Nest Thermostat

Data Encryption ensures that communication between the thermostat and connected devices is secure.

Protects transmitted user data.

Bluetooth Connectivity

Does it support Bluetooth?

Yes 0 Votes Google Nest Thermostat

No 0 Votes Sensi ST55

Shows whether Bluetooth connectivity is available.

Thread

Does it support Thread?

No 0 Votes Google Nest Thermostat

No 0 Votes Sensi ST55

Indicates support for the Thread protocol.

Cloud Connectivity

Does it connect to the cloud?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Google Nest Thermostat
vs
Sensi ST55
Cloud Connectivity

Both Google Nest Thermostat and Sensi ST55 offer Cloud Connectivity, enabling remote control and smart features through internet connectivity, supporting modern home automation needs equally.

Shows whether cloud services are used.

Local Control Capability

Can it be controlled locally without internet?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Indicates whether local control works without internet.

Sensors & Monitoring 18

Sensor Accuracy

How accurate are the sensors?

22 Google Nest Thermostat 0 Votes Standard

25 Sensi ST55 0 Votes Standard

Google Nest Thermostat
vs
Sensi ST55
Sensor Accuracy

Both devices have Standard Sensor Accuracy, ensuring reliable temperature measurements without notable differences, suitable for typical residential HVAC usage.

Indicates how accurately the thermostat sensors measure conditions.

Motion Sensor

Does it have a motion sensor?

Yes 1 Votes Google Nest Thermostat

No 0 Votes Sensi ST55

Google Nest Thermostat
vs
Sensi ST55
Motion Sensor

Motion Sensor capability is included in Google Nest Thermostat but is absent in Sensi ST55; thus, Nest can automatically detect presence for smart adjustments, enhancing energy efficiency.

Detects movement near the thermostat.

Motion sensor on the Nest is a nice feature to save energy by detecting presence unlike the Sensi.

See more

Remote Sensor

Can it use remote sensors?

No 0 Votes Google Nest Thermostat

No 0 Votes Sensi ST55

Google Nest Thermostat
vs
Sensi ST55
Remote Sensor

Neither device supports Remote Sensors, so additional remote temperature sensing will require extra equipment, making both less versatile for multi-room temperature management out-of-the-box.

Indicates compatibility with external sensors.

Temperature Sensor Type

What type of temperature sensor is used?

62 Google Nest Thermostat 0 Votes Digital

65 Sensi ST55 0 Votes Digital

Sensi ST55
Sensi ST55

Uses a digital temperature sensor, providing more precise and responsive measurements compared to analog sensors.

Defines the technology used to measure temperature.

Humidity Sensor

Does it measure humidity?

Yes 0 Votes Google Nest Thermostat

No 0 Votes Sensi ST55

Google Nest Thermostat
Google Nest Thermostat

Includes a built-in Humidity Sensor allowing the thermostat to measure and respond to indoor air moisture levels.

Indicates whether humidity is measured.

Humidity Range

What humidity range is supported?

45 Google Nest Thermostat 0 Votes 10-90%

Who knows? 0 Votes Sensi ST55 (Help us out by suggesting one!)

Google Nest Thermostat
vs
Sensi ST55
Humidity Range

Google Nest Thermostat supports a Humidity Range of 10-90%, while Sensi ST55 does not provide humidity range information, indicating Nest offers better environmental monitoring.

Shows supported humidity measurement range.

Sampling Rate

How often does the thermostat sample data?

92 Google Nest Thermostat 0 Votes Real-Time

45 Sensi ST55 0 Votes Standard

Sensi ST55
Sensi ST55

The sampling rate for sensor data is standard, providing dependable readings without excessive power consumption.

Describes how frequently the thermostat sensors collect and update environmental data.

Real-Time Monitoring

Does it offer real-time monitoring?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Google Nest Thermostat
Google Nest Thermostat

Real-Time Monitoring capability gives up-to-date information on temperature and system performance.

Provides live environmental data.

Historical Data Tracking

Can it track historical data?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Google Nest Thermostat
vs
Sensi ST55
Historical Data Tracking

Historical Data Tracking is available in both Google Nest Thermostat and Sensi ST55, allowing users to monitor past temperature and usage trends to optimize energy savings.

Stores past environmental data.

Energy Usage Monitoring

Does it monitor energy usage?

Yes 0 Votes Google Nest Thermostat

No 0 Votes Sensi ST55

Google Nest Thermostat
Google Nest Thermostat

Energy Usage Monitoring is available to help track and optimize energy consumption for heating and cooling.

Tracks HVAC energy usage estimates.

Occupancy Detection

Can it detect room occupancy?

Yes 0 Votes Google Nest Thermostat

No 0 Votes Sensi ST55

Determines if people are present in the space.

Ambient Light Sensor

Does it detect ambient light?

Yes 0 Votes Google Nest Thermostat

No 0 Votes Sensi ST55

Adjusts display or behavior based on light.

Scheduling & Automation 18

Eco Mode

Does it have an eco mode?

Yes 1 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Google Nest Thermostat
vs
Sensi ST55
Eco Mode

Both Google Nest Thermostat and Sensi ST55 include Eco Mode, which helps reduce energy consumption by optimizing heating and cooling settings, supporting greener home operation.

Reduces energy use automatically.

Eco Mode is nice on both but I trust the Nest's adaptive scheduling makes it more efficient overall.

See more

Scheduling Type

What type of scheduling is available?

30 Google Nest Thermostat 0 Votes Manual

54 Sensi ST55 0 Votes Guided

Google Nest Thermostat
vs
Sensi ST55
Scheduling Type

Scheduling Type differs: Google Nest Thermostat uses Manual scheduling whereas Sensi ST55 offers Guided scheduling; guided scheduling can simplify setup for users needing more assistance.

Defines how schedules are created and managed.

Adaptive Scheduling

Does it adapt schedules automatically?

Yes 1 Votes Google Nest Thermostat

No 0 Votes Sensi ST55

Google Nest Thermostat
vs
Sensi ST55
Adaptive Scheduling

Adaptive Scheduling is offered by Google Nest Thermostat but not by Sensi ST55; Nest’s adaptive feature learns your schedule to optimize comfort and savings automatically, ideal for hands-off management.

Adjusts schedules based on behavior.

Adaptive scheduling on the Nest is kinda cool since it learns your habits better than the Sensi.

See more

Sleep Mode

Is there a sleep mode?

No 0 Votes Google Nest Thermostat

No 0 Votes Sensi ST55

Google Nest Thermostat
vs
Sensi ST55
Sleep Mode

Neither thermostat includes Sleep Mode, so both rely on general scheduling and automation features without specialized nighttime comfort settings.

Optimizes temperature for sleeping hours.

Smart Home Scenes

Does it support smart home scenes?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Google Nest Thermostat
vs
Sensi ST55
Smart Home Scenes

Smart Home Scenes support is available on both Google Nest Thermostat and Sensi ST55, enabling them to integrate with broader smart home routines and create cohesive environment control.

Integrates with smart home scenes.

Vacation Mode

Is there a vacation mode?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Google Nest Thermostat
Google Nest Thermostat

Vacation Mode is supported, enabling energy savings by adjusting temperature settings when the home is unoccupied.

Sensi ST55
Sensi ST55

Vacation mode helps save energy by maintaining reduced HVAC activity during extended absences. Users can set this mode to avoid unnecessary heating or cooling.

Maintains efficiency when away for long periods.

Event-Based Triggers

Are event-based triggers supported?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Google Nest Thermostat
Google Nest Thermostat

Event-Based Triggers let the thermostat react to specific conditions or events automatically.

Sensi ST55
Sensi ST55

Event-based triggers enable automation of HVAC functions based on specific conditions or occurrences, enhancing convenience and efficiency.

Responds to events like occupancy changes.

Scheduling Capability

Does it support scheduling?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Google Nest Thermostat
Google Nest Thermostat

Scheduling Capability is present, allowing users to create and modify heating and cooling schedules.

Indicates whether scheduling is supported.

Daily Scheduling

Can you set daily schedules?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Sensi ST55
Sensi ST55

Daily scheduling capability allows programming different temperature settings for each day, enhancing comfort and energy management.

Allows temperature changes by day.

Time-Based Triggers

Are time-based triggers supported?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Google Nest Thermostat
Google Nest Thermostat

Time-Based Triggers are supported, enabling scheduled temperature changes based on time settings.

Executes actions at set times.

Demand Response

Does it support demand response?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Sensi ST55
Sensi ST55

Demand response compatibility means the thermostat can participate in programs to reduce power consumption during peak demand periods.

Participates in utility demand programs.

Weekly Scheduling

Can you set weekly schedules?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Allows different schedules across the week.

HVAC Compatibility 18

HVAC System Type

Which HVAC system types are supported?

72 Google Nest Thermostat 0 Votes Central, Split, Packaged

73 Sensi ST55 0 Votes Central, Split

Sensi ST55
Sensi ST55

Compatible with central and split-type HVAC systems, covering common residential heating and cooling setups.

Defines the general HVAC system types supported.

Cooling System Compatibility

What cooling systems are supported?

68 Google Nest Thermostat 0 Votes Central AC, Heat Pump

72 Sensi ST55 0 Votes Central AC, Heat Pump

Indicates supported cooling system types.

Heating System Compatibility

What heating systems are supported?

39 Google Nest Thermostat 0 Votes Furnace, Boiler, Heat Pump

42 Sensi ST55 0 Votes Furnace, Boiler, Heat Pump

Google Nest Thermostat
Google Nest Thermostat

Compatible with various heating systems including furnace, boiler, and heat pump setups.

Sensi ST55
Sensi ST55

Heating system compatibility includes furnaces, boilers, and heat pumps, accommodating a wide variety of residential heating configurations.

Indicates supported heating system types.

Multi-Stage Heating

Does it support multi-stage heating?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Sensi ST55
Sensi ST55

Multi-stage heating support allows precise control over heating systems with multiple heating stages, improving comfort and energy use.

Indicates support for multi-stage heating.

Multi-Stage Cooling

Does it support multi-stage cooling?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Sensi ST55
Sensi ST55

Multi-stage cooling capability means the thermostat can manage complex cooling systems with multiple compressor stages, improving comfort and efficiency.

Indicates support for multi-stage cooling.

Fan Control

Can it control the HVAC fan?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Sensi ST55
Sensi ST55

Fan control capability is included, allowing manual or automatic operation of the HVAC system fan for improved air circulation.

Allows independent fan operation control.

Boiler Compatibility

Is it compatible with boilers?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Sensi ST55
Sensi ST55

Boiler compatibility enables control of hydronic heating systems, a common residential heating method using hot water.

Indicates compatibility with boiler systems.

Gas Furnace Compatibility

Does it support gas furnaces?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Sensi ST55
Sensi ST55

This thermostat supports compatibility with gas furnace systems, allowing control over traditional heating appliances.

Indicates support for gas furnaces.

Oil Furnace Compatibility

Does it support oil furnaces?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Sensi ST55
Sensi ST55

Oil furnace compatibility allows the thermostat to control heating systems powered by oil furnaces, maintaining versatility.

Indicates support for oil furnaces.

Heat Pump Compatibility

Does it support heat pumps?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Indicates support for heat pump systems.

Dual Fuel

Does it support dual fuel systems?

Yes 0 Votes Google Nest Thermostat

No 0 Votes Sensi ST55

Supports dual-fuel HVAC configurations.

Humidifier

Does it support a humidifier?

Yes 0 Votes Google Nest Thermostat

No 0 Votes Sensi ST55

Supports integrated humidifier control.

Power & Electrical 14

Battery Life

How long does the battery last?

12 months 1 Votes
Google Nest Thermostat
12 months 0 Votes
Sensi ST55

Sensi ST55
Sensi ST55

The device has a battery lifespan of 12 months, providing reliable backup power when needed to maintain settings during interruptions.

Estimates how long batteries last under normal use.

Battery life is equal for both which is nice so they both should last you about a year on normal use.

See more

Standby Power Usage

How much power is used in standby?

0.5 Watt 0 Votes
Google Nest Thermostat
0.5 Watt 0 Votes
Sensi ST55

Sensi ST55
Sensi ST55

Standby power usage is minimal at 0.5 watts, helping reduce overall electricity consumption when the thermostat is not actively controlling HVAC.

Indicates power draw when idle.

Power Failure Recovery

Does it recover after power failure?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Sensi ST55
Sensi ST55

Power failure recovery ensures that the thermostat resumes its previous settings automatically after a power outage, preventing interruption in comfort.

Restores settings after outages.

Battery Type

What type of battery is used?

40 Google Nest Thermostat 1 Votes AAA

44 Sensi ST55 0 Votes AA

Specifies the battery format used.

Battery type matters to me and I prefer that the Nest uses AAA batteries instead of AA on the Sensi.

See more

Low Power Mode

Does it have a low power mode?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Google Nest Thermostat
Google Nest Thermostat

Low Power Mode extends the device's battery life by reducing power consumption when possible.

Sensi ST55
Sensi ST55

Low power mode reduces energy consumption when the thermostat is inactive or idle, contributing to overall energy savings.

Reduces power usage when idle.

Power Source

What is the power source?

12 Google Nest Thermostat 0 Votes Battery

35 Sensi ST55 0 Votes Hardwired

Sensi ST55
Sensi ST55

The thermostat is powered via a hardwired connection, ensuring a stable power supply without relying on batteries.

Indicates how the thermostat receives power.

Battery Backup

Is there battery backup?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Sensi ST55
Sensi ST55

Battery backup ensures settings and basic operation are maintained during power interruptions, protecting comfort and system integrity.

Maintains operation during power outages.

Power Consumption

How much power does it consume?

1 Watt 0 Votes
Google Nest Thermostat
1 Watt 0 Votes
Sensi ST55

Sensi ST55
Sensi ST55

The thermostat consumes approximately 1 watt during active operation, indicating energy-efficient performance.

Measures power usage during operation.

Input Voltage

What input voltage is required?

24 Volt 0 Votes
Google Nest Thermostat
24 Volt 0 Votes
Sensi ST55

Sensi ST55
Sensi ST55

Operates at an input voltage of 24 volts, standard for residential HVAC control systems.

Specifies required input voltage.

Power Frequency

What power frequency is supported?

60 Hz 0 Votes
Google Nest Thermostat
60 Hz 0 Votes
Sensi ST55

Sensi ST55
Sensi ST55

The device operates at a standard power frequency of 60 Hz, compatible with typical North American electrical infrastructure.

Indicates supported electrical frequency.

Energy Star Certified

Is it Energy Star certified?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Sensi ST55
Sensi ST55

Energy Star certification indicates the thermostat meets strict energy efficiency guidelines set by the Environmental Protection Agency.

Indicates energy efficiency certification.

Operating Voltage Range

What voltage range can it operate in?

32 Google Nest Thermostat 0 Votes 24 VAC

55 Sensi ST55 0 Votes 20-30 VAC

Describes acceptable voltage range.

Safety, Compliance & Reliability 14

Regulatory Compliance

What regulatory standards does it meet?

90 Google Nest Thermostat 0 Votes FCC

94 Sensi ST55 0 Votes FCC

Sensi ST55
Sensi ST55

The device complies with FCC regulatory standards for electromagnetic interference, supporting safe and reliable operation.

Indicates compliance with regulations.

Operating Humidity Range

What humidity range is supported?

55 Google Nest Thermostat 0 Votes 0-95%

64 Sensi ST55 0 Votes 0-90%

Specifies allowable humidity levels during operation.

Maintenance Alerts

Are maintenance alerts provided?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Reminds users of maintenance needs.

Expected Lifespan

What is the expected lifespan?

10 years 0 Votes
Google Nest Thermostat
10 years 0 Votes
Sensi ST55

Estimates usable product lifespan.

Fail-Safe Mode

Does it have a fail-safe mode?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Google Nest Thermostat
Google Nest Thermostat

Fail-Safe Mode is included to ensure the thermostat continues to operate safely in the event of a malfunction.

Sensi ST55
Sensi ST55

Fail-safe mode is implemented to protect system functionality and prevent damage by defaulting to safe operating parameters if issues are detected.

Ensures safe behavior during failure.

System Alerts

Does it provide system alerts?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Google Nest Thermostat
Google Nest Thermostat

System Alerts notify users of HVAC or device issues to maintain proper functioning.

Sensi ST55
Sensi ST55

System alerts notify users of operational statuses or potential problems, helping maintain HVAC system health.

Notifies users of system issues.

Electrical Safety Certification

What electrical safety certifications does it have?

72 Google Nest Thermostat 0 Votes UL

75 Sensi ST55 0 Votes UL

Sensi ST55
Sensi ST55

The thermostat meets UL electrical safety certification standards, ensuring compliance with important safety requirements.

Lists electrical safety certifications.

Overheat Protection

Is overheat protection included?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Sensi ST55
Sensi ST55

Overheat protection is built in to prevent damage or hazards by automatically shutting down or adjusting operations if excessive temperatures are detected.

Protects device from overheating.

Operating Temperature Range

What is the operating temperature range?

52 Google Nest Thermostat 0 Votes 32-104°F

55 Sensi ST55 0 Votes 32-104°F

Defines the ambient temperature range for safe operation.

Storage Temperature Range

What is the storage temperature range?

70 Google Nest Thermostat 0 Votes -4-140°F

73 Sensi ST55 0 Votes -4-140°F

Indicates safe temperature range when not in use.

EMC Compliance

Is it EMC compliant?

Yes 0 Votes Google Nest Thermostat

Yes 0 Votes Sensi ST55

Indicates electromagnetic compatibility compliance.

Fire Safety Rating

Does it meet fire safety requirements?

No 0 Votes Google Nest Thermostat

No 0 Votes Sensi ST55

Indicates fire resistance or safety design.

Surveys

Because hot takes deserve votes.

Temperature Accuracy

How accurate is this thermostat at maintaining the set temperature during daily use?

Extremely accurate — Within plus or minus 0.5 degrees
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Very accurate — Within plus or minus 1 degree
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Decently accurate — Within plus or minus 2 degrees
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Somewhat inconsistent — Within plus or minus 3 degrees
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Very inconsistent — More than plus or minus 3 degrees
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55

Response Speed to Temperature Changes

How quickly does this thermostat react after the temperature setting is adjusted?

Instant response — Under 30 seconds
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Quick response — 30 seconds to 1 minute
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Moderate response — 1 to 3 minutes
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Slow response — 3 to 5 minutes
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Very slow response — Over 5 minutes
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55

Ease of Setup and Installation

How easy is it to install and set up this thermostat for the first time?

Super easy and stress free — Finished in under 15 minutes
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Pretty straightforward — About 15 to 30 minutes
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Manageable with effort — Around 30 to 60 minutes
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Time consuming and confusing — 1 to 2 hours
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Extremely frustrating — Over 2 hours
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55

Ease of Daily Use

How easy is it to control and adjust this thermostat in everyday use?

Effortless and intuitive — No learning needed
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Mostly easy to use — Minor learning curve
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Usable but not smooth — Takes regular effort
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Often confusing — Requires frequent checking
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Hard to use — Causes daily frustration
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55

Smart Features and App Experience

How well do the smart features and mobile app work with this thermostat?

Smooth and reliable — No crashes or delays
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Mostly reliable — Rare glitches
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Usable but basic — Limited features
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Unreliable — Frequent bugs or delays
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Barely usable — Often fails to work
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55

Energy Efficiency and Savings

How much does this thermostat help reduce energy usage over time?

Major savings — Over 20 percent reduction
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Noticeable savings — 10 to 20 percent
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Some savings — 5 to 10 percent
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Minimal savings — Under 5 percent
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
No savings — No noticeable reduction
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55

Noise Level During Operation

How noticeable is the noise from this thermostat during normal operation?

Completely silent — No audible sound
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Very quiet — Barely noticeable
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Occasionally noticeable — Soft clicking sounds
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Often noticeable — Clearly audible sounds
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Annoyingly loud — Distracting noise
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55

Design and Display Appeal

How appealing is the look and display of this thermostat in a home environment?

Modern and premium — Looks high end
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Clean and stylish — Fits most interiors
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Simple and acceptable — Nothing special
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Outdated design — Feels old fashioned
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Unattractive look — Stands out poorly
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55

Durability and Build Quality

How durable does this thermostat feel with long term everyday use?

Very durable — Expected to last 10 years or more
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Solid build — Around 7 to 10 years
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Average quality — About 5 to 7 years
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Feels fragile — Roughly 3 to 5 years
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Very flimsy — Under 3 years
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55

Pricing and Value

How does the price of this thermostat feel compared to its overall features and performance?

Great value for money — Worth every dollar
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Pretty good price — Slightly above average
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Fair deal — Matches what you get
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Kinda pricey — Costs more than expected
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55
Crazy expensive — Not worth the price
0 Votes
Google Nest Thermostat
0 Votes
Sensi ST55

Reviews 0

The good, the bad, and the brutally honest.

Average Rating

Google
Google
Google Nest Thermostat
Google Nest Thermostat
0 / 5 0 Reviews
Sensi
Sensi
Sensi ST55
Sensi ST55
0 / 5 0 Reviews

Discussions 0

Thoughts, takes, and hot debates.

Awards 0

Only the best made it here.

Collections 0

Treasures You’ve picked. No fluff, all fun.

More Thermostats 0

Unlock more awesome finds.

Other Google Thermostats 2

Other Sensi Thermostats 5

Google Nest Thermostat
Google
Google
Google Nest Thermostat
Sensi ST55
Sensi
Sensi
Sensi ST55
vs