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Thermostats · Head to head

Amazon Smart Thermostat vs Sensi Smart thermostat

Full Smart Thermostats comparison in 2026

Updated September 2026
Data from Amazon and official Sensi site.
2026 verdict
If your household mixes Alexa with a Google speaker, SmartThings or Home Assistant, the Sensi Smart thermostat is the better of these two budget smart thermostats.
Sensi Smart thermostat
Winner
Sensi Smart thermostat
$103.83$129.9920% OFF
Buy on Amazon USACheck price
It works with Google Home, Alexa, SmartThings and Home Assistant, measures humidity as well as temperature and carries a three year warranty, against one year on the Amazon Smart Thermostat. The Amazon model is the simpler, more compact unit, a 90 mm square with a trim plate in the box, and it makes sense in a home where Alexa is the only assistant anyone uses. Neither supports Apple HomeKit, remote room sensors, Matter or 5 GHz Wi-Fi, and both schedule automatically. Choose the Amazon Smart Thermostat for an Alexa-only home on the tightest budget, and the Sensi Smart thermostat for everyone else.
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FeatureAmazon Smart ThermostatSensi Smart thermostatWinner
Price$91.99$103.83Amazon Smart Thermostat
Rating4.34.4Sensi Smart thermostat
Warranty1 year3 yearsSensi Smart thermostat
IntegrationsAlexaGoogle Home, Alexa, Samsung SmartThings, Home AssistantSensi Smart thermostat
SensorsTemperatureTemperature, HumiditySensi Smart thermostat
Included accessoriesTrim PlateTrim PlateTie
Connectivity2.4 GHz WiFi2.4 GHz WiFiTie
ScreenYESYESTie
Energy SavingsYESYESTie
System Health MonitorNONOTie
Voice ControlYESYESTie
SpeakerNONOTie

What the differences mean

Smart home platforms

The Amazon Smart Thermostat is controlled through Alexa and nothing else: no Google Home, no HomeKit, no SmartThings and no Matter. The Sensi Smart thermostat covers Google Home, Alexa, SmartThings and Home Assistant, so it keeps working if the household changes assistants.

Humidity sensing

The Sensi Smart thermostat reads humidity as well as temperature, useful in a dry winter or a muggy summer. The Amazon Smart Thermostat only measures temperature at the wall.

Display

Both use a monochrome LED display that is not a touchscreen. The Sensi Smart thermostat spreads it over a wide 5 inch face and shows the time; the Amazon Smart Thermostat is a smaller, more discreet square that shows the temperature only.

Warranty

Three years on the Sensi Smart thermostat against one year on the Amazon Smart Thermostat, which is the longer safety net for a device wired into the heating.

Trim plate

The Amazon Smart Thermostat includes a trim plate to cover the marks an old thermostat leaves. On the Sensi Smart thermostat it is an extra cost accessory.

Which one to buy if

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.

  • Amazon Smart Thermostat
  • Sensi Smart thermostat

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Frequently Asked Questions

Which is better: Amazon Smart Thermostat or Sensi Smart thermostat?

The Sensi Smart thermostat for most homes. It works with Google Home, Alexa, SmartThings and Home Assistant, adds humidity sensing and has a three year warranty. The Amazon Smart Thermostat is Alexa only, with a one year warranty.

Does the Amazon Smart Thermostat work with Google Home or Apple Home?

No. The Amazon Smart Thermostat works only with Alexa. If you need Google Home, the Sensi Smart thermostat supports it, along with Alexa, SmartThings and Home Assistant. Neither works with Apple HomeKit.

Can either thermostat use remote room sensors?

No. Neither the Amazon Smart Thermostat nor the Sensi Smart thermostat supports external temperature sensors, so both heat and cool based on the reading where they are mounted.

Who should buy the Amazon Smart Thermostat?

An Alexa-only household that wants a basic smart thermostat with automatic scheduling, a compact body and a trim plate in the box, and has no plans to use another platform.

Who should buy the Sensi Smart thermostat?

Anyone with a mix of assistants or a Home Assistant or SmartThings setup, who wants humidity readings, a large easy-to-read display and a three year warranty from a simple, non-touch thermostat.

Full comparison table

Compare all 22 Thermostats side by side

You are looking at two of them. The full table lines up all Thermostats in the catalog with the same specs, so you can filter by what you need and sort by price or rating.

  • 22 Thermostats
  • 51 specs compared
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