Smart Thermostat Comparison · UK 2026
Honeywell Home T6R-HW vs tado° Wireless Smart Thermostat X

Specs, pros and cons compared side by side

Both the Honeywell Home T6R-HW and the tado° Wireless Smart Thermostat X are smart thermostats. This head-to-head sets them side by side using the specs, pros and cons from our full reviews. Honeywell Home specs come from Resideo’s own UK pages and guides; tado° specs come from tado°’s own pages.

Quick verdict

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Honeywell Home T6R-HW

Pick it for: Large touchscreen for scheduling and overriding the temperature (not listed for the tado° X) · Wall-mounted kit runs on a 230V wall power supply (the tado° X: the Wireless Temperature Sensor X runs on three AAA batteries)

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tado° Wireless Smart Thermostat X

Pick it for: Thread and Matter enabled (neither listed for the T6R-HW) · Expandable with Smart Radiator Thermostats X for room-by-room control (not listed for the T6R-HW) · Suitable for wet areas such as bathrooms (not listed for the T6R-HW)

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Quick comparison

Spec Honeywell Home T6R-HW tado° Wireless Smart Thermostat X
Key specs from our review Wireless receiver box
Heating and hot water
Resideo app, 2.4GHz Wi-Fi
OpenTherm or 24-230V on/off
Large touchscreen		 Thread + Matter
No Bridge X needed with the Programmer X
Alexa + Google Assistant + Apple Home
Boilers + heat pumps (Relay or OpenTherm)
Honeywell Home T6R-HW

Pros

  • Receiver box and thermostat come pre-bound
  • Works as a programmable thermostat without Wi-Fi
  • Table-stand or wall-mounted kit
  • Works with OpenTherm and 24-230V on/off boilers and heat pumps

Cons

  • Receiver box must be installed by a competent person
  • 2.4GHz Wi-Fi only
  • Not for electric heating (240V)
tado° Wireless Smart Thermostat X

Pros

  • Thread and Matter rather than a proprietary hub
  • Stored schedules keep running offline
  • The wireless starter kit needs no Bridge X
  • tado states rooms reach their target within 0.5°C

Cons

  • Several smart features, including Adaptive Heating and Geofencing, are listed under the optional AI Assist subscription
  • Not compatible with tado° V3+
  • Room-by-room control needs extra Smart Radiator Thermostats X, sold separately
  • Takes AAA batteries, where the 2nd gen is rechargeable

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Which should you buy?

Why choose the Honeywell Home T6R-HW

  • Large touchscreen for scheduling and overriding the temperature (not listed for the tado° X)
  • Wall-mounted kit runs on a 230V wall power supply (the tado° X: the Wireless Temperature Sensor X runs on three AAA batteries)
Why choose the tado° Wireless Smart Thermostat X

  • Thread and Matter enabled (neither listed for the T6R-HW)
  • Expandable with Smart Radiator Thermostats X for room-by-room control (not listed for the T6R-HW)
  • Suitable for wet areas such as bathrooms (not listed for the T6R-HW)

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