Honeywell Home (Resideo)Honeywell Home T6R Wireless Smart Thermostat

The Honeywell Home T6R earns its place as the specialist pick for two specific buyers: Apple households and system/heat-only boiler owners. It's the only shortlisted model with native Apple HomeKit support, alongside Google Home, Alexa and IFTTT, and it charges no subscription for app control, geofencing or scheduling. Crucially, the T6R-HW variant adds hot-water control, and a two-zone DHW pack exists for cylinders — so it's a clean answer where tado° or Hive would need the right kit and Wiser would need Kit 2/3. Its wireless receiver (an 868MHz RF link) helps where the thermostat can't sit at the boiler. Indicative street pricing runs roughly £160-200 depending on variant and retailer, which is why it trails the cheaper picks on value. The trade-off is that it's a capable manual-schedule controller, not a learning or budget-zoning system: there's no cheap smart-TRV room zoning (that needs Honeywell's pricier evohome).