Radiator Valves · Head to head

Shelly BLU TRV vs Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve

Full Smart Radiator Valves comparison in 2026

Updated October 2026
Data from Amazon and official Shelly and Sonoff sites.
2026 verdict
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve wins the 2026 matchup against Shelly BLU TRV, mainly on rating, integrations, and frost protection.
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve
Winner
Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve

Last recorded price

Currently unavailable on Amazon USA
See on Amazon USA
It separates itself most clearly on rating, integrations, and frost protection, while still looking better on child lock. The only strong reason to choose Shelly BLU TRV is if battery life is more important to you than the overall verdict. For most setups, Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve is the smarter buy.
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FeatureShelly BLU TRVSonoff TRV Gen2 Zigbee Thermostatic Radiator ValveWinner
Rating4.14.5Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve
Battery Life2 years6 monthsShelly BLU TRV
IntegrationsGoogle Home, Alexa, Samsung SmartThings, Home AssistantGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterSonoff TRV Gen2 Zigbee Thermostatic Radiator Valve
Frost ProtectionNOYESSonoff TRV Gen2 Zigbee Thermostatic Radiator Valve
Child LockNOYESSonoff TRV Gen2 Zigbee Thermostatic Radiator Valve
Warranty2 years2 yearsTie
Connectivity2.4 GHz WiFi, BluetoothBluetooth, ZigbeeTie
ScreenYESYESTie
SensorsTemperatureTemperatureTie
GeofencingNONOTie
Shelly

Shelly BLU TRV

Prime exclusive deal
$64.99

Last recorded price

Buy on Amazon USA
  • + Battery Life: 2 years
  • - Rating: 4.1 vs 4.5
  • - Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter

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.

  • Shelly BLU TRV
  • Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve

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Frequently Asked Questions

Which is better overall: Shelly BLU TRV or Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve?

Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve has the stronger overall profile in this comparison, especially for rating, integrations, and frost protection.

What is the biggest difference between Shelly BLU TRV and Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve?

Rating is one of the clearest differences: Shelly BLU TRV lists 4.1, while Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve lists 4.5.

Who should buy Shelly BLU TRV?

Choose Shelly BLU TRV if your priority is battery life and that matters more than rating.

Who should buy Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve?

Choose Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve if your priority is rating and integrations and that matters more than battery life.

Full comparison table

Compare all 14 Radiator Valves side by side

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  • 14 Radiator Valves
  • 34 specs compared
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