Bosch Smart radiator thermostat II [+M] vs SwitchBot Smart Radiator Thermostat comparison

Data from Amazon and official Bosch and SwitchBot sites.

2026 verdict

For most buyers in 2026, Bosch Smart radiator thermostat II [+M] is the safer pick over SwitchBot Smart Radiator Thermostat because of rating, battery life, and connectivity. The comparison tilts its way because of rating, battery life, and connectivity, with child lock keeping it in front. Pick SwitchBot Smart Radiator Thermostat only when its specific feature mix is the deciding factor for your setup. For most setups, Bosch Smart radiator thermostat II [+M] is the smarter buy.

Winner

Bosch

Bosch Smart radiator thermostat II [+M]

Price unavailable right now

Buy on Amazon Canada

SwitchBot

SwitchBot Smart Radiator Thermostat

£26.99

Buy on Amazon UK

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Feature	Bosch Smart radiator thermostat II [+M]	SwitchBot Smart Radiator Thermostat	Winner
Rating	4.3	4.1	Bosch Smart radiator thermostat II [+M]
Battery Life	2 years	10 months	Bosch Smart radiator thermostat II [+M]
Connectivity	Zigbee, Thread Protocol	Bluetooth	Bosch Smart radiator thermostat II [+M]
Child Lock	YES	NO	Bosch Smart radiator thermostat II [+M]
Warranty	1 year	1 year	Tie
Integrations	Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter	Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter	Tie
Screen	YES	YES	Tie
Sensors	Temperature	Temperature	Tie
Geofencing	NO	NO	Tie
Frost Protection	YES	YES	Tie

Winner

Bosch

Bosch Smart radiator thermostat II [+M]

Price unavailable right now

Buy on Amazon Canada

+ Rating: 4.3
+ Battery Life: 2 years
+ Connectivity: Zigbee, Thread Protocol

SwitchBot

SwitchBot Smart Radiator Thermostat

£26.99

Buy on Amazon UK

- Rating: 4.1 vs 4.3
- Battery Life: 10 months vs 2 years

Frequently Asked Questions

Which is better overall: Bosch Smart radiator thermostat II [+M] or SwitchBot Smart Radiator Thermostat?

Bosch Smart radiator thermostat II [+M] has the stronger overall profile in this comparison, especially for rating, battery life, and connectivity.

What is the biggest difference between Bosch Smart radiator thermostat II [+M] and SwitchBot Smart Radiator Thermostat?

Rating is one of the clearest differences: Bosch Smart radiator thermostat II [+M] lists 4.3, while SwitchBot Smart Radiator Thermostat lists 4.1.

Who should buy Bosch Smart radiator thermostat II [+M]?

Choose Bosch Smart radiator thermostat II [+M] if your priority is rating and battery life and that matters more than the competing advantages.

Who should buy SwitchBot Smart Radiator Thermostat?

Choose SwitchBot Smart Radiator Thermostat if your priority is its specific strengths and that matters more than rating.

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