The Smart Device Compare comparison

Aqara Radiator Thermostat W600 vs Bosch Smart radiator thermostat II [+M]

Understand the differences. Decide what matters to your home.

Before you compare every specification

Key differences between Aqara Radiator Thermostat W600 and Bosch Smart radiator thermostat II [+M]

A summary of selected recorded differences between these radiator valves. Check the full specification table below for details and conditions.

Feature differences among your selected devices

Bluetooth (connectivity): Aqara Radiator Thermostat W600 — Yes (Aqara lists the wireless protocols as Thread, Zigbee and BLE, and the Matter certificate records Thread and Bluetooth as the transport interfaces.); Bosch Smart radiator thermostat II [+M] — No.
External Temperature Sensors (features): Aqara Radiator Thermostat W600 — Yes (It can take its reading from an Aqara temperature sensor such as the Climate Sensor W100 placed elsewhere in the room, so it regulates the room rather than the air next to the radiator. Requires Zigbee mode through the Aqara Home app.); Bosch Smart radiator thermostat II [+M] — No.
Geofencing (features): Aqara Radiator Thermostat W600 — Yes (Heating starts as you approach home, based on the temperature range you preset.); Bosch Smart radiator thermostat II [+M] — No.

Information still to confirm

1 of 27 comparison fields lack a resolved value for at least one selected device. Missing information is not evidence that a feature is absent.
Check the full table and manufacturer documentation before ruling out a device.

These observations are derived from recorded catalog data and have not all been independently verified. Confirm details with the manufacturer before purchasing.

Compare capabilities, compatibility and setup requirements.

Option 1 · Aqara

Aqara Radiator Thermostat W600

Last updated October 2026

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Option 2 · Bosch

Bosch Smart radiator thermostat II [+M]

Last updated October 2026

View full device profile

What the catalog tells us

Understand the tradeoffs.

These counts describe the available data, not a quality score. More features do not automatically make a better device.

3differences with recorded values for every device

1rows with missing or unspecified information

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Showing 27 of 27 rows. “Not recorded” does not mean “No”.

Reading layout

Connectivity

2.4 GHz Wi-Fi

Aqara Radiator Thermostat W600: No
Bosch Smart radiator thermostat II [+M]: No

5 GHz Wi-Fi

Aqara Radiator Thermostat W600: No
Bosch Smart radiator thermostat II [+M]: No

Bluetooth

Aqara Radiator Thermostat W600: Yes
Catalog note
Aqara lists the wireless protocols as Thread, Zigbee and BLE, and the Matter certificate records Thread and Bluetooth as the transport interfaces.
Bosch Smart radiator thermostat II [+M]: No

Thread

Aqara Radiator Thermostat W600: Thread Border Router required
Catalog note
In Thread mode the thermostat joins a Matter fabric directly and needs a Thread border router plus a Matter controller.
Bosch Smart radiator thermostat II [+M]: Thread Border Router required

Z Wave

Aqara Radiator Thermostat W600: No
Bosch Smart radiator thermostat II [+M]: No

Zigbee

Aqara Radiator Thermostat W600: Zigbee Hub required
Catalog note
Zigbee mode is the one that unlocks the Aqara-only features (local schedules, external sensor linking, group control) and needs an Aqara Zigbee 3.0 hub.
Bosch Smart radiator thermostat II [+M]: Zigbee Hub required

Display

Screen

Aqara Radiator Thermostat W600: Yes
Catalog note
The LED display can be rotated 180 degrees so it stays readable whichever way the valve is mounted.
Bosch Smart radiator thermostat II [+M]: Yes

Screen Type

Aqara Radiator Thermostat W600: LED
Bosch Smart radiator thermostat II [+M]: Not recorded

Features

Automations

Aqara Radiator Thermostat W600: Yes
Catalog note
Open window detection pauses heating for 30 minutes when a bound Aqara door and window sensor reports an opening, and presence or humidity sensors can drive the setpoint through Aqara automations.
Bosch Smart radiator thermostat II [+M]: Yes

Child Lock

Aqara Radiator Thermostat W600: Yes
Catalog note
The user manual lists a child lock indicator on the display, and Zigbee2MQTT exposes child_lock as a controllable setting.
Bosch Smart radiator thermostat II [+M]: Yes
Catalog note
Children’s hands on radiator thermostats often lead to incorrect settings and wasted energy. But there is no need to sweat (or freeze) as a result: | Specify in the app or using the operating button on the device that manual settings on the device itself are no longer possible. | This way, kids cannot adjust anything on the smart thermostats, and you can still control the room temperature conveniently via app, voice assistant or room thermostat.

Display Temperature

Aqara Radiator Thermostat W600: Yes
Bosch Smart radiator thermostat II [+M]: Yes

External Temperature Sensors

Aqara Radiator Thermostat W600: Yes
Catalog note
It can take its reading from an Aqara temperature sensor such as the Climate Sensor W100 placed elsewhere in the room, so it regulates the room rather than the air next to the radiator. Requires Zigbee mode through the Aqara Home app.
Bosch Smart radiator thermostat II [+M]: No

Frost Protection

Aqara Radiator Thermostat W600: Yes
Catalog note
Heating switches on automatically when the ambient temperature falls below 5 degrees Celsius and stops once it climbs back to 8 degrees Celsius.
Bosch Smart radiator thermostat II [+M]: Yes
Catalog note
Prevents damage to radiators owing to open windows or unused rooms.

Geofencing

Aqara Radiator Thermostat W600: Yes
Catalog note
Heating starts as you approach home, based on the temperature range you preset.
Bosch Smart radiator thermostat II [+M]: No

Integrations

Alexa

Aqara Radiator Thermostat W600: Yes
Catalog note
Via Matter
Bosch Smart radiator thermostat II [+M]: Yes

Apple Home

Aqara Radiator Thermostat W600: Yes
Catalog note
Via Matter
Bosch Smart radiator thermostat II [+M]: Yes

Google Home

Aqara Radiator Thermostat W600: Yes
Catalog note
Via Matter
Bosch Smart radiator thermostat II [+M]: Yes

Home Assistant

Aqara Radiator Thermostat W600: Yes
Catalog note
Home Assistant reaches it two ways: as a Matter thermostat over Thread, and over Zigbee, where Zigbee2MQTT lists the WT-A03E and exposes its schedules, presets, child lock and external temperature input.
Bosch Smart radiator thermostat II [+M]: Yes

Matter

Aqara Radiator Thermostat W600: Yes
Catalog note
Matter certified by the Connectivity Standards Alliance as Smart Thermostat W600 (certificate CSA263YCMAT54532-24), specification 1.3, over Thread.
Bosch Smart radiator thermostat II [+M]: Yes

SmartThings

Aqara Radiator Thermostat W600: Yes
Catalog note
Via Matter
Bosch Smart radiator thermostat II [+M]: Yes

Power

Battery Life

Aqara Radiator Thermostat W600: 2 years
Bosch Smart radiator thermostat II [+M]: 2 years

Battery Type

Aqara Radiator Thermostat W600: 2x AA
Bosch Smart radiator thermostat II [+M]: 2x AA

Scheduling

Automatically

Aqara Radiator Thermostat W600: No
Bosch Smart radiator thermostat II [+M]: No

Manually

Aqara Radiator Thermostat W600: Yes
Catalog note
Up to 7 time periods per day across all 7 days, plus 5 preset modes. In Zigbee mode the schedule is stored on the device and keeps running with the internet down.
Bosch Smart radiator thermostat II [+M]: Yes

Suggestions

Aqara Radiator Thermostat W600: No
Bosch Smart radiator thermostat II [+M]: No

Sensors

Humidity

Aqara Radiator Thermostat W600: No
Bosch Smart radiator thermostat II [+M]: No

Temperature

Aqara Radiator Thermostat W600: Yes
Catalog note
A built-in temperature sensor drives the control loop, and it can be calibrated by up to plus or minus 5 degrees Celsius to match how the room actually feels.
Bosch Smart radiator thermostat II [+M]: Yes

Specifications for Aqara Radiator Thermostat W600 versus Bosch Smart radiator thermostat II [+M]
Specification	Aqara Radiator Thermostat W600	Bosch Smart radiator thermostat II [+M]
Connectivity
2.4 GHz Wi-Fi	No	No
5 GHz Wi-Fi	No	No
Bluetooth	Yes Catalog note Aqara lists the wireless protocols as Thread, Zigbee and BLE, and the Matter certificate records Thread and Bluetooth as the transport interfaces.	No
Thread	Thread Border Router required Catalog note In Thread mode the thermostat joins a Matter fabric directly and needs a Thread border router plus a Matter controller.	Thread Border Router required
Z Wave	No	No
Zigbee	Zigbee Hub required Catalog note Zigbee mode is the one that unlocks the Aqara-only features (local schedules, external sensor linking, group control) and needs an Aqara Zigbee 3.0 hub.	Zigbee Hub required
Display
Screen	Yes Catalog note The LED display can be rotated 180 degrees so it stays readable whichever way the valve is mounted.	Yes
Screen Type	LED	Not recorded
Features
Automations	Yes Catalog note Open window detection pauses heating for 30 minutes when a bound Aqara door and window sensor reports an opening, and presence or humidity sensors can drive the setpoint through Aqara automations.	Yes
Child Lock	Yes Catalog note The user manual lists a child lock indicator on the display, and Zigbee2MQTT exposes child_lock as a controllable setting.	Yes Catalog note Children’s hands on radiator thermostats often lead to incorrect settings and wasted energy. But there is no need to sweat (or freeze) as a result: \| Specify in the app or using the operating button on the device that manual settings on the device itself are no longer possible. \| This way, kids cannot adjust anything on the smart thermostats, and you can still control the room temperature conveniently via app, voice assistant or room thermostat.
Display Temperature	Yes	Yes
External Temperature Sensors	Yes Catalog note It can take its reading from an Aqara temperature sensor such as the Climate Sensor W100 placed elsewhere in the room, so it regulates the room rather than the air next to the radiator. Requires Zigbee mode through the Aqara Home app.	No
Frost Protection	Yes Catalog note Heating switches on automatically when the ambient temperature falls below 5 degrees Celsius and stops once it climbs back to 8 degrees Celsius.	Yes Catalog note Prevents damage to radiators owing to open windows or unused rooms.
Geofencing	Yes Catalog note Heating starts as you approach home, based on the temperature range you preset.	No
Integrations
Alexa	Yes Catalog note Via Matter	Yes
Apple Home	Yes Catalog note Via Matter	Yes
Google Home	Yes Catalog note Via Matter	Yes
Home Assistant	Yes Catalog note Home Assistant reaches it two ways: as a Matter thermostat over Thread, and over Zigbee, where Zigbee2MQTT lists the WT-A03E and exposes its schedules, presets, child lock and external temperature input.	Yes
Matter	Yes Catalog note Matter certified by the Connectivity Standards Alliance as Smart Thermostat W600 (certificate CSA263YCMAT54532-24), specification 1.3, over Thread.	Yes
SmartThings	Yes Catalog note Via Matter	Yes
Power
Battery Life	2 years	2 years
Battery Type	2x AA	2x AA
Scheduling
Automatically	No	No
Manually	Yes Catalog note Up to 7 time periods per day across all 7 days, plus 5 preset modes. In Zigbee mode the schedule is stored on the device and keeps running with the internet down.	Yes
Suggestions	No	No
Sensors
Humidity	No	No
Temperature	Yes Catalog note A built-in temperature sensor drives the control loop, and it can be calibrated by up to plus or minus 5 degrees Celsius to match how the room actually feels.	Yes

Know what’s behind the comparison.

The table matches specifications by section and field. It preserves notes, separates missing data from explicit “No” values, and keeps qualifications attached to their values. No overall winner is assigned from feature counts.

Read our comparison methodology