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25 Off Honeywell Smart Thermostats Comparison - April 2026

7 Best 25 Off Honeywell Smart Thermostats In the UK

1
Best Choice
9.8Exceptional
2
Best Value
9.7Exceptional
3
9.6Exceptional
4
9.4Excellent
5
9.3Excellent
6
9.2Excellent
7
8.9Very Good
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Model

Honeywell Home T6R-HW Wireless Smart Thermostat with Hot Water Control — WiFi App-Enabled to and Improve Efficiency — Compatible with HomeKit, Google Home, Alexa and IFTTT
Model
Honeywell Home T6 Wired Smart Thermostat - Black - Touchscreen Heating Control with Geofencing, Alexa, Apple & Google - 868 MHZ - Easy Install & App Setup for Combi Boiler & More - CM907 Replacement
Model
Honeywell Home T3R Wireless Smart Thermostat Kit - 7-Day Programmable Wall Thermostat with Intuitive Controls - 868 MHZ - Large Backlit Display, Flexible Scheduling & Compatibility
Model
Honeywell Home DT3R Wireless Thermostat for Heating Control with Energy Efficient LED, No WiFi or App Required (White)
Model
Honeywell Home THR99C3013 evohome Smart WiFi Thermostat Boiler Relay Box and and 3 Wireless Control Radiator Heads, White, 215 X 170 X 112 mm
Model
Honeywell Home THR840DEU DT2 Thermostat, White
Model
Meross WiFi Smart Thermostat works with HomeKit Alexa Google Home, Digital Wireless Thermostat Temperature Controller Remote and Voice Control for Heating and Cooling, 13A, White

Brand

Honeywell Home
Brand
Honeywell Home
Brand
Honeywell Home
Brand
Honeywell Home
Brand
Honeywell Home
Brand
Honeywell Home
Brand
meross

Reviews

4,006 reviews
Reviews
4,006 reviews
Reviews
2,052 reviews
Reviews
1,722 reviews
Reviews
22 reviews
Reviews
1,720 reviews
Reviews
680 reviews

Features

Simple to use

9.3
Simple to use
9.3
Simple to use
8.1
Simple to use
7.7
Simple to use
7.6
Simple to use
9.1
Simple to use
9.4

Temperature control

9.4
Temperature control
9.4
Temperature control
8.9
Temperature control
8.6
Temperature control
8.4
Temperature control
7.9
Temperature control
9.1

Easy installation

9.1
Easy installation
9.1
Easy installation
9.3
Easy installation
9.1
Easy installation
8.9
Easy installation
9.3
Easy installation
9.4

Tech support

8.6
Tech support
8.6
Tech support
9.1
Tech support
8.9
Tech support
8.6
Tech support
9.1
Tech support
9.4

Integrate with alexa

9.1
Integrate with alexa
9.1
Integrate with alexa
8.9
Integrate with alexa
8.6
Integrate with alexa
8.6
Integrate with alexa
9.1
Integrate with alexa
9.3

Tech Specs

product dimensions

10.3 x 6.8 x 10.3 cm 790 g
product dimensions
10.3 x 2.8 x 10.3 cm 200 g
product dimensions
13.6 x 6.2 x 9.8 cm 585 g
product dimensions
15.7 x 8.7 x 15.7 cm 400 g
product dimensions
22 x 12 x 17 cm 1.67 kg
product dimensions
9 x 2.9 x 9.2 cm 299 g
product dimensions
21.2 x 5.8 x 19.6 cm 630 g

included components

1x T6R 1 x Receiver box and all the accessories
included components
1 x T6 Smart Thermostat and Receiver Box
included components
The thermostat, the relay box, all the accessories and instruction manual
included components
1x DT3R
included components
1 x THR99C3013
included components
One thermostat, all the accessories and instruction manual
included components
1 x Smart Wi-Fi thermostat 1 x User manual 1 x Sensor

batteries required

No
batteries required
No
batteries required
Yes
batteries required
No
batteries required
Yes
batteries required
Yes
batteries required
No

item weight

790 g
item weight
200 g
item weight
585 g
item weight
400 g
item weight
1.67 kg
item weight
299 g
item weight
-

voltage

24 Volts
voltage
5 Volts
voltage
230 Volts
voltage
230 Volts
voltage
24 Volts
voltage
230 Volts
voltage
-

item package quantity

1
item package quantity
1
item package quantity
1
item package quantity
1
item package quantity
1
item package quantity
1
item package quantity
-

power source

Battery Powered
power source
Corded Electric
power source
Battery Powered
power source
Battery Powered
power source
Battery Powered
power source
Battery Powered
power source
-

plug profile

Wall Mount
plug profile
Wall Mount
plug profile
Wall Mount
plug profile
Wall Mount
plug profile
Wall Mount
plug profile
Wall Mount
plug profile
-

style

Wireless Hot Water Control
style
Wire Black
style
Wireless
style
Wireless Premium
style
Thermostat with Boiler Relay + 3 Radiator Heads
style
Wired
style
-

color

Black
color
Black
color
White
color
Wireless White
color
White
color
White
color
-

batteries included

No
batteries included
No
batteries included
Yes
batteries included
-
batteries included
Yes
batteries included
Yes
batteries included
-

shape

-
shape
Rectangular
shape
Rectangular
shape
Rectangular
shape
Rectangular
shape
Rectangular
shape
-

special features

Programmable
special features
Programmable
special features
Adjustable, Easy To Use, Wireless
special features
Frost Protection
special features
-
special features
-
special features
-

usage

Boiler
usage
-
usage
Boiler
usage
-
usage
Boiler
usage
-
usage
-

size

10cm
size
-
size
-
size
157x157x87mm
size
215 X 170 X 112 mm
size
-
size
-

batteries

-
batteries
1 Unknown batteries required.
batteries
2 AA batteries required. included
batteries
-
batteries
-
batteries
1 Unknown batteries required. included
batteries
-

battery cell type

-
battery cell type
-
battery cell type
Alkaline
battery cell type
-
battery cell type
Alkaline
battery cell type
Alkaline
battery cell type
-

Available On

Available On
Available On
Available On
Available On
Available On
Available On

Our Top 3 Picks

Here are the top 3 recommended products with more information to help you find the right product for you
  • 9.8
    1
    Honeywell Home
    27% Off

    Honeywell Home T6R-HW Wireless Smart Thermostat with Hot Water Control — WiFi App-Enabled to and Improve Efficiency — Compatible with HomeKit, Google Home, Alexa and IFTTT

    9.4 Temperature control
    9.3 Simple to use
    9.1 Easy installation

    Why we love it

    The T6R
    HW is a wireless, Wi
    Fi enabled thermostat that gives you control when home or away
  • 9.7
    2
    Honeywell Home
    20% Off

    Honeywell Home T6 Wired Smart Thermostat - Black - Touchscreen Heating Control with Geofencing, Alexa, Apple & Google - 868 MHZ - Easy Install & App Setup for Combi Boiler & More - CM907 Replacement

    9.4 Temperature control
    9.3 Simple to use
    9.1 Easy installation

    Why we love it

    Easy to use touch-screen interface.
    Remote control via Honeywell Home app.
    Smart home integration with Apple and Google.
  • 9.6
    3
    Honeywell Home

    Honeywell Home T3R Wireless Smart Thermostat Kit - 7-Day Programmable Wall Thermostat with Intuitive Controls - 868 MHZ - Large Backlit Display, Flexible Scheduling & Compatibility

    9.3 Easy installation
    9.1 Tech Support
    8.9 Temperature control

    Why we love it

    Easy to install and use.
    Flexible scheduling options.
    Energy-saving holiday mode.

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When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.