Smart Thermostat Comparison · UK 2026
Honeywell Home T6R-HW vs Nest Learning Thermostat (3rd Gen)

Specs, pros and cons compared side by side

Both the Honeywell Home T6R-HW and the Nest Learning Thermostat (3rd Gen) are smart thermostats for heating and hot water. 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; Nest specs come from Google’s own pages.

Quick verdict

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Honeywell Home T6R-HW

Pick it for: Sold as a table-stand kit as well as a wall-mounted kit (the Nest Learning Thermostat: no stand in the box; the Nest Stand is separate) · Large touchscreen for scheduling and overriding the temperature (the Nest Learning Thermostat: a 2.0in 480 x 480 display with a turning ring)

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Nest Learning Thermostat (3rd Gen)

Pick it for: Auto-Schedule learns from the temperatures you set and builds a schedule (not listed for the T6R-HW) · Dual-band Wi-Fi on 2.4 and 5GHz (the T6R-HW: 2.4GHz only) · Sensors for humidity, proximity, occupancy and ambient light (not listed for the T6R-HW)

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Quick comparison

Spec Honeywell Home T6R-HW Nest Learning Thermostat (3rd Gen)
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		 Heat Link (On/Off or OpenTherm)
Heating and hot water
Auto-Schedule learning
2.0 in 480 x 480 display
Honeywell Home T6R-HW

Pros

  • Heating and stored hot water from one thermostat
  • Receiver box and thermostat come pre-bound
  • Works as a programmable thermostat without Wi-Fi
  • Table-stand or wall-mounted kit
  • OpenTherm and 24-230V on/off support

Cons

  • Receiver box must be installed by a competent person
  • 2.4GHz Wi-Fi only
  • Not for electric heating (240V)
Nest Learning Thermostat (3rd Gen)

Pros

  • Controls heating and hot water, including hot water tanks
  • OpenTherm support through Heat Link for compatible boilers
  • Learns a schedule for you with Auto-Schedule
  • Heat Link has a button for manual heating if the thermostat loses its connection

Cons

  • Google says Heat Link should be installed by a professional
  • No stand in the box: the Nest Stand, power adapter and cable are separate
  • Some Google Home app features, such as hold temperature, are only on newer Nest models

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Which should you buy?

Why choose the Honeywell Home T6R-HW

  • Sold as a table-stand kit as well as a wall-mounted kit (the Nest Learning Thermostat: no stand in the box; the Nest Stand is separate)
  • Large touchscreen for scheduling and overriding the temperature (the Nest Learning Thermostat: a 2.0in 480 x 480 display with a turning ring)
Why choose the Nest Learning Thermostat (3rd Gen)

  • Auto-Schedule learns from the temperatures you set and builds a schedule (not listed for the T6R-HW)
  • Dual-band Wi-Fi on 2.4 and 5GHz (the T6R-HW: 2.4GHz only)
  • Sensors for humidity, proximity, occupancy and ambient light (not listed for the T6R-HW)

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