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Thermostats · Head to head

Google Nest Learning Thermostat (4th gen) vs Sensi Touch 2 smart thermostat

Full Smart Thermostats comparison in 2026

Updated October 2026
Data from Amazon and official Google and Sensi sites.
2026 verdict
Dial or touchscreen, the Google Nest Learning Thermostat (4th gen) is the stronger smart thermostat of the two, with Matter, Apple Home support, a temperature sensor in the box, occupancy sensing and a system health monitor.
Google Nest Learning Thermostat (4th gen)
Winner
Google Nest Learning Thermostat (4th gen)
$239.99$279.9914% OFF
Buy on Amazon USACheck price
The Sensi Touch 2 smart thermostat offers a 4.3-inch touchscreen, full Home Assistant support and a 3-year warranty against 2 years, yet it has no Matter, no occupancy sensing and no alerts. Both use dual-band Wi-Fi and both suit Google Home, Alexa and SmartThings homes. Pick the Google Nest Learning Thermostat (4th gen) for a self-learning stat with room sensing, and the Sensi Touch 2 smart thermostat for a simple touchscreen swap where those extras are not needed.
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FeatureGoogle Nest Learning Thermostat (4th gen)Sensi Touch 2 smart thermostatWinner
Price$239.99$166.59Sensi Touch 2 smart thermostat
Rating4.44.3Google Nest Learning Thermostat (4th gen)
Warranty2 years3 yearsSensi Touch 2 smart thermostat
Included accessoriesTrim Plate, Temperature SensorNoneGoogle Nest Learning Thermostat (4th gen)
Connectivity2.4 GHz WiFi, 5 GHz WiFi, Bluetooth2.4 GHz WiFi, 5 GHz WiFiGoogle Nest Learning Thermostat (4th gen)
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter, External Temperature SensorsGoogle Home, Alexa, Samsung SmartThings, Home Assistant, External Temperature SensorsGoogle Nest Learning Thermostat (4th gen)
SensorsProximity / Motion, Occupancy, Temperature, Humidity, Ambient LightTemperature, HumidityGoogle Nest Learning Thermostat (4th gen)
AlertsTemperature AlertsNoneGoogle Nest Learning Thermostat (4th gen)
System Health MonitorYESNOGoogle Nest Learning Thermostat (4th gen)
ScreenYESYESTie
Energy SavingsYESYESTie
Voice ControlYESYESTie

What the differences mean

Matter and Apple Home

The Google Nest Learning Thermostat (4th gen) supports Matter, which is also how it reaches the Apple Home app. The Sensi Touch 2 smart thermostat has neither, so an iPhone household or a Matter-first setup is served by the Nest only.

Sensors in the box

The Google Nest Learning Thermostat (4th gen) ships with a temperature sensor and has proximity, occupancy and ambient light sensing, so it can favor the room you use. The Sensi Touch 2 smart thermostat includes no sensor and only measures temperature and humidity, though it supports add-on external sensors.

Screen and controls

The Sensi Touch 2 smart thermostat is a 4.3-inch touchscreen. The Google Nest Learning Thermostat (4th gen) has a 2.7-inch display at 600 x 600 px with no touch, controlled by turning the dial, which some people prefer and others find slower for changing a schedule.

Alerts and monitoring

The Google Nest Learning Thermostat (4th gen) sends temperature alerts and has a system health monitor. The Sensi Touch 2 smart thermostat has neither, so problems with the heating or cooling system are less likely to be flagged to you.

Size, colors and warranty

The Google Nest Learning Thermostat (4th gen) is a compact 98 mm disc weighing 161 g, and it comes with a trim plate. The Sensi Touch 2 smart thermostat is a wider 142 x 82 mm slab with no trim plate, but carries a 3-year warranty against the Nest's 2 years.

Home Assistant

The Sensi Touch 2 smart thermostat has full Home Assistant support, while the Google Nest Learning Thermostat (4th gen) has partial support, so a Home Assistant-centered home gets cleaner control from the Sensi.

Which one to buy if

What owners say

Owners of both thermostats praise an easy installation and say the screen looks better than what it replaced, and both groups mention that things can go wrong on the network or the wiring side. Google Nest Learning Thermostat (4th gen) owners single out the schedule it learns on its own, the away mode that reacts to presence, the animated display and the included sensor for evening out rooms, while some report it failing to power on without a C-wire where a 3rd generation worked, being managed only in the Google Home app and using a mount that does not fit the older model. Sensi Touch 2 smart thermostat owners single out the guided install in the app and the glass touchscreen, and some report Wi-Fi dropping after a few months, trouble pairing an add-on sensor and missing advanced diagnostics.

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • Google Nest Learning Thermostat (4th gen)
  • Sensi Touch 2 smart thermostat

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Frequently Asked Questions

Which is better overall: Google Nest Learning Thermostat (4th gen) or Sensi Touch 2 smart thermostat?

The Google Nest Learning Thermostat (4th gen). It adds Matter, Apple Home, an included sensor, occupancy sensing and a system health monitor. The Sensi Touch 2 smart thermostat wins on touchscreen size, warranty and Home Assistant support.

What is the biggest difference between the Google Nest Learning Thermostat (4th gen) and the Sensi Touch 2 smart thermostat?

Sensing and standards. The Google Nest Learning Thermostat (4th gen) supports Matter and reads occupancy and ambient light, while the Sensi Touch 2 smart thermostat is a touchscreen thermostat with temperature and humidity sensing only.

Does the Sensi Touch 2 smart thermostat work with Apple Home?

No. The Sensi Touch 2 smart thermostat has no Apple HomeKit or Matter support. The Google Nest Learning Thermostat (4th gen) reaches Apple Home through Matter.

Does the Google Nest Learning Thermostat (4th gen) come with a remote sensor?

Yes, it ships with a temperature sensor and can select which sensor to read by time. The Sensi Touch 2 smart thermostat supports external sensors but does not include one.

Which has the better screen, the Google Nest Learning Thermostat (4th gen) or the Sensi Touch 2 smart thermostat?

It depends on the input. The Sensi Touch 2 smart thermostat has the larger 4.3-inch touchscreen, while the Google Nest Learning Thermostat (4th gen) has a 2.7-inch display and a dial with no touch.

Who should buy the Google Nest Learning Thermostat (4th gen)?

Google Home, Apple Home and Matter households that want a thermostat that learns a schedule, reacts to presence and comes with a room sensor.

Who should buy the Sensi Touch 2 smart thermostat?

Buyers who want a big touchscreen and a guided DIY install, with Home Assistant support and a longer warranty, and who do not need Matter or occupancy sensing.

Full comparison table

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