Shelly BLU TRV vs Sonoff Zigbee Thermostatic Radiator Valve comparison

Updated July 2026

Data from Amazon and official Shelly and Sonoff sites.

2026 verdict

Zigbee zone heating for less: the Sonoff Zigbee Thermostatic Radiator Valve wins on price, rating, frost protection and child lock, covering the safety basics the Shelly skips while matching its external-sensor trick with SONOFF's own Zigbee sensors and pairing natively with Home Assistant. The Shelly BLU TRV counters with a 2-year warranty versus 1, SmartThings support, roughly 2-year batteries and regulation owners describe as whisper-quiet, all through its required BLU Gateway. Google, Alexa and Home Assistant serve both; HomeKit and Matter serve neither. Best value in a Zigbee home is the Sonoff; quiet operation and warranty are the Shelly's case.

Price alerts

Radiator Valve prices change while you decide

We check the price of every Radiator Valve in the catalog daily and email you the drops, whichever one you pick.

Your subscription could not be saved. Please try again.

Your subscription has been successful.

Feature	Shelly BLU TRV	Sonoff Zigbee Thermostatic Radiator Valve	Winner
Price	$64.99	$39.99	Sonoff Zigbee Thermostatic Radiator Valve
Rating	4.0	4.1	Sonoff Zigbee Thermostatic Radiator Valve
Warranty	2 years	1 year	Shelly BLU TRV
Connectivity	2.4 GHz WiFi, Bluetooth	Zigbee	Shelly BLU TRV
Integrations	Google Home, Alexa, Samsung SmartThings, Home Assistant	Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter	Sonoff Zigbee Thermostatic Radiator Valve
Frost Protection	NO	YES	Sonoff Zigbee Thermostatic Radiator Valve
Child Lock	NO	YES	Sonoff Zigbee Thermostatic Radiator Valve
Screen	YES	YES	Tie
Sensors	Temperature	Temperature	Tie
Geofencing	NO	NO	Tie

Shelly

Shelly BLU TRV

$64.99

Buy on Amazon USA

+ Warranty: 2 years
+ Connectivity: 2.4 GHz WiFi, Bluetooth
- Price: $64.99 vs $39.99
- Rating: 4.0 vs 4.1

Winner

Sonoff

Sonoff Zigbee Thermostatic Radiator Valve

$39.99

Buy on Amazon USA

+ Price: $39.99
+ Rating: 4.1
+ Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
- Warranty: 1 year vs 2 years
- Connectivity: Zigbee vs 2.4 GHz WiFi, Bluetooth

Frequently Asked Questions

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

Sonoff Zigbee Thermostatic Radiator Valve wins with its lower price, higher owner rating, frost protection and child lock. Shelly BLU TRV counters with a 2-year warranty, long battery life, SmartThings support and quieter regulation.

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

The bridge. The Sonoff speaks Zigbee to any compatible hub, which Home Assistant and Zigbee2MQTT users usually already run. The Shelly speaks Bluetooth and requires a powered Shelly BLU Gateway nearby, whose placement determines reliability. Feature-wise, the Sonoff adds safety features; the Shelly adds SmartThings.

Do both support external temperature sensors?

Yes. The Shelly BLU TRV pairs with Shelly BLU H&T sensors via its gateway, and the Sonoff Zigbee Thermostatic Radiator Valve pairs with SONOFF Zigbee temperature sensors, so both can regulate on the room's true temperature instead of the reading beside the hot radiator.

Which is quieter?

The Shelly BLU TRV, whose owners consistently describe regulation as quiet and precise. The Sonoff Zigbee Thermostatic Radiator Valve's motor can be audible when adjusting, which some owners notice in bedrooms.

Who should buy Shelly BLU TRV?

Choose Shelly BLU TRV if quiet operation, the 2-year warranty and SmartThings support matter, or you already own a Shelly BLU Gateway and sensors. It is the precision pick for Shelly-ecosystem homes.

Who should buy Sonoff Zigbee Thermostatic Radiator Valve?

Choose Sonoff Zigbee Thermostatic Radiator Valve for the best value in a Zigbee home: better rated, cheaper, with frost protection, child lock, external-sensor accuracy and first-class Home Assistant support.

Full comparison table

Compare all 10 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.