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Temperature & Humidity Sensors · Head to head

Aqara Temperature and Humidity Sensor vs Nest Temperature Sensor

Full Smart Temperature/Humidity Sensors comparison in 2026

Updated October 2026
Data from Amazon and official Aqara and Google sites.
2026 verdict
If you want to know what the temperature and humidity are in a bedroom, a bathroom or a fridge, the Aqara Temperature and Humidity Sensor is the better choice over the Nest Temperature Sensor.
Aqara Temperature and Humidity Sensor
Winner
Aqara Temperature and Humidity Sensor
$19.98
Buy on Amazon USACheck price
It is a real stand-alone sensor with humidity, pressure, alerts, history and automations, and it plugs into most smart home platforms through a hub. The Nest Temperature Sensor is a different kind of product: it only reads temperature and only reports to a paired Nest thermostat, so its job is to steer that thermostat's comfort schedule toward one room. That is what it does well, and it is the only reason to pick it. Buy the Aqara Temperature and Humidity Sensor for monitoring, and the Nest Temperature Sensor only if a Nest thermostat already runs your heating.
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FeatureAqara Temperature and Humidity SensorNest Temperature SensorWinner
Price$19.98$39.00Aqara Temperature and Humidity Sensor
Rating4.24.6Nest Temperature Sensor
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle HomeAqara Temperature and Humidity Sensor
SensorsTemperature, Humidity, Atmospheric PressureTemperatureAqara Temperature and Humidity Sensor
AlertsTemperature Alerts, Humidity AlertsNoneAqara Temperature and Humidity Sensor
Warranty1 year1 yearTie
Battery Life2 years2 yearsTie
ConnectivityZigbeeBluetoothTie
ScreenNONOTie

What the differences mean

What it is for

The Aqara Temperature and Humidity Sensor is a monitoring sensor with its own history, alerts and automations. The Nest Temperature Sensor has none of those: it only feeds a room's temperature to a compatible Nest thermostat so the schedule can follow that room.

Humidity and pressure

The Aqara Temperature and Humidity Sensor reads temperature, humidity and atmospheric pressure. The Nest Temperature Sensor reads temperature only, so it cannot tell you a bathroom is damp or trigger a dehumidifier.

Connection

The Aqara Temperature and Humidity Sensor uses Zigbee through an Aqara hub or another Zigbee coordinator. The Nest Temperature Sensor talks Bluetooth to a Nest Thermostat and cannot connect to anything else.

Smart home support

With an Aqara hub, the Aqara Temperature and Humidity Sensor works with Google Home, Alexa, Apple Home, Matter and Home Assistant. The Nest Temperature Sensor is limited to the Google Home app, with no Alexa, Apple Home, SmartThings, Home Assistant or Matter.

Battery and size

Both are rated for 2 years, the Aqara Temperature and Humidity Sensor on a CR2032 and the Nest Temperature Sensor on a CR123A. The Aqara puck measures 36 x 36 x 9 mm and weighs 13 g, against 50 x 50 x 22.5 mm and 45 g for the Nest.

Which one to buy if

What owners say

Owners of the two sensors are praising very different things. Aqara Temperature and Humidity Sensor owners call it accurate against dedicated thermometers, easy to pair with an Aqara hub, a Zigbee dongle or Home Assistant, and small enough to leave in a fridge, a freezer or a covered outdoor spot. Their complaints are a battery cover that is fragile and hard to open, and a minority of units with far shorter battery life than rated. Nest Temperature Sensor owners describe a game-changer for split-level homes and rooms that run hotter or colder than the rest of the house, set up in minutes from the Google Home app, with some crediting room-specific scheduling for lower energy bills. Their main warning is that some buyers outside the US could not get it to pair because of regional software support.

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.

  • Aqara Temperature and Humidity Sensor
  • Nest Temperature Sensor

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Frequently Asked Questions

Which is better overall: Aqara Temperature and Humidity Sensor or Nest Temperature Sensor?

The Aqara Temperature and Humidity Sensor, for almost everyone. It measures humidity and pressure as well as temperature, sends alerts, keeps history and works with the main smart home platforms. The Nest Temperature Sensor is only better as an accessory for a Nest thermostat.

What is the biggest difference between the Aqara Temperature and Humidity Sensor and the Nest Temperature Sensor?

The Aqara Temperature and Humidity Sensor is a stand-alone Zigbee sensor. The Nest Temperature Sensor works only as an accessory to a Nest thermostat, with no integrations, history or automations of its own.

Does the Nest Temperature Sensor work without a Nest Thermostat?

No. The Nest Temperature Sensor connects over Bluetooth to a compatible Nest Thermostat and does nothing on its own. The Aqara Temperature and Humidity Sensor needs a Zigbee hub instead.

Does the Nest Temperature Sensor measure humidity like the Aqara Temperature and Humidity Sensor?

No. The Nest Temperature Sensor reads temperature only, while the Aqara Temperature and Humidity Sensor reads temperature, humidity and atmospheric pressure.

Who should buy the Aqara Temperature and Humidity Sensor?

Anyone building multi-room climate monitoring, Home Assistant and HomeKit users, and people who want alerts from a fridge, freezer or bathroom. It needs an Aqara hub or a Zigbee coordinator.

Who should buy the Nest Temperature Sensor?

Owners of a compatible Nest Thermostat, especially in a split-level or multi-story home, who want the heating to follow the temperature of one room. Buyers outside the US should check regional support first, as some owners report pairing problems.

Full comparison table

Compare all 36 Temperature & Humidity Sensors side by side

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

  • 36 Temperature & Humidity Sensors
  • 43 specs compared
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