Bosch Smart radiator thermostat II [+M] vs Shelly BLU TRV

Bosch Smart radiator thermostat II [+M] wins with its higher owner rating, HomeKit and Matter support, frost protection and child lock. Shelly BLU TRV counters with a lower price, a 2-year warranty, quiet operation and external temperature sensor support.

Connectivity and ecosystem. The Bosch speaks Zigbee and Thread with native Matter, covering every major platform including Apple HomeKit. The Shelly speaks Bluetooth to a required Shelly BLU Gateway and integrates with Google Home, Alexa, SmartThings and Home Assistant, with no HomeKit or Matter path.

The Shelly BLU TRV has the edge on paper: it can pair with an external Shelly BLU H&T sensor placed across the room, avoiding readings skewed by the radiator's own heat, and owners describe its regulation as quiet and precise. The Bosch Smart radiator thermostat II [+M] relies on its built-in sensor.

The Shelly BLU TRV carries a 2-year warranty against 1 year on the Bosch Smart radiator thermostat II [+M], and both run around 2 years per set of AA batteries. The Bosch compensates with its sturdier reputation and broader platform support.

Choose Bosch Smart radiator thermostat II [+M] if you want the better-rated valve with HomeKit, Matter, frost protection and child lock, fitting cleanly into almost any ecosystem via Zigbee or Thread.

Choose Shelly BLU TRV if you value quiet, sensor-corrected temperature control at a lower price with a longer warranty, and your platforms are Google Home, Alexa, SmartThings or Home Assistant. Keep its BLU Gateway powered and central for reliable Bluetooth range.