tado° Smart Radiator Thermostat - WiFi Starter Kit V3+ - 2X Smart Radiator Valve, Digital Heating Control Via App, Easy Installation, Save Energy - Works with Alexa, Apple Siri, and Google Assistant :
Hive Smart Radiator Valve | Hive Home | Hive Home
Anyone seen the Aqara Smart Radiator Thermostat before? UK Amazon - £55 : r/HomeKit
Which? testing reveals the best smart radiator valves - Which? News
Tado Smart Radiator Thermostat review: Have a radiator? This thermostat wants to make it smarter - CNET
Smart radiator valves - product and compatibility guide