Shelly BLU TRV vs Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve comparison

Updated July 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 price, integrations, and frost protection. It separates itself most clearly on price, 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.

Shelly

Shelly BLU TRV

$64.99

Buy on Amazon USA

Winner

Sonoff

Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve

£29.91

Buy on Amazon UK

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Feature	Shelly BLU TRV	Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve	Winner
Price	$64.99	£29.91	Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve
Battery Life	2 years	6 months	Shelly BLU TRV
Integrations	Google Home, Alexa, Samsung SmartThings, Home Assistant	Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter	Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve
Frost Protection	NO	YES	Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve
Child Lock	NO	YES	Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve
Warranty	2 years	2 years	Tie
Connectivity	2.4 GHz WiFi, Bluetooth	Bluetooth, Zigbee	Tie
Screen	YES	YES	Tie
Sensors	Temperature	Temperature	Tie
Geofencing	NO	NO	Tie

Shelly

Shelly BLU TRV

$64.99

Buy on Amazon USA

+ Battery Life: 2 years
- Price: $64.99 vs £29.91
- Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter

Winner

Sonoff

Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve

£29.91

Buy on Amazon UK

+ Price: £29.91
+ Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
+ Frost Protection: YES
- Battery Life: 6 months vs 2 years

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 price, integrations, and frost protection.

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

Price is one of the clearest differences: Shelly BLU TRV lists $64.99, while Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve lists £29.91.

Which one looks better on price?

Shelly BLU TRV is listed at $64.99, while Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve is listed at £29.91. Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve (better spec).

Who should buy Shelly BLU TRV?

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

Who should buy Sonoff TRV Gen2 Zigbee Thermostatic Radiator Valve?

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

Full comparison table

Compare all 11 Radiator Valves side by side

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