Comparison numbers

28 Products researched
23 Research hours
630 Readers
97,877 Customer ratings

Best Smart Thermostats

Smart Thermostat Comparison 2025

smart thermostat
smart thermostat
 home thermometer
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 radiator thermostat
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Best Product
AVM FRITZ DECT 301
AVM FRITZ DECT 301
Amazon
Bestseller
Tado smart thermostat
Tado smart thermostat
Amazon
Eurotronic Comet Plus
Eurotronic Comet Plus
Amazon
Honeywell RTH9585WF1004
Honeywell RTH9585WF1004
Amazon
Drayton Wiser WT724R9K0902
Drayton Wiser WT724R9K0902
Amazon
Speedo smart thermostat
Speedo smart thermostat
Amazon
Best Price
HomeMatic 143159A0
HomeMatic 143159A0
Amazon
RatingHow we compare
Customer rating (from Amazon)
Available at
Manufacturer
Prduct features
Dimensions
Operating voltage
Display
Type of assembly
Radio technology
Weekly program
Timer
Anti-freeze protection
Control
WLAN capable
App
Voice control
Advantages
Shipping (Amazon)
Best Product
Best Product
AmazonAVM FRITZ DECT 301
Rating
Excellent01/2025

1

AVM FRITZ DECT 301
Customer rating
Amazon11,631 reviews
Check Price
Available at
65,59 £
see vendordays00£
see vendordays
Manufacturer
AVM
Prduct features
Dimensions
2 x 2,1 x 3,4 in
Operating voltage
1,5 V
Display
LC display
Type of assembly
Sticking
Radio technology
Wireless, Wi-Fi
Weekly program
Timer
Anti-freeze protection
Control
WLAN capable
App
Voice control
Advantages
  • With anti-freeze protection
  • Various programmable modes
  • Control via app
  • Is Wi-Fi capable
  • Programmable timer
Shipping (Amazon)
see vendor
Check Price
Bestseller
Bestseller
AmazonTado smart thermostat
Rating
Excellent01/2025

2

Tado smart thermostat
Customer rating
Amazon4,865 reviews
Check Price
Available at
159,19 £
see vendordays00£
118,99 £
see vendordays00£
Manufacturer
Tado
Prduct features
Dimensions
2,7 x 3,5 x 6,9 in
Operating voltage
230 V
Display
LC display
Type of assembly
Glue
Radio technology
Wireless
Weekly program
Timer
Anti-freeze protection
Control
WLAN capable
App
Voice control
Advantages
  • Has a practical timer
  • Distinguishes between the working week and the weekend
  • With app
  • With anti-freeze protection
  • Is Wi-Fi capable
Shipping (Amazon)
see vendor
Check Price
AmazonEurotronic Comet Plus
Rating
Excellent05/2025

3

Eurotronic Comet Plus
Customer rating
Amazon5,041 reviews
Check Price
Available at
60,46 £
see vendordays00£
71,69 £
see vendordays00£
Manufacturer
Eurotronic
Prduct features
Dimensions
2 x 2,6 x 30,3 in
Operating voltage
3 V
Display
LED display
Type of assembly
Hanging
Radio technology
Wireless, Wi-Fi
Weekly program
Timer
Anti-freeze protection
Control
WLAN capable
App
Voice control
Advantages
  • Control via app
  • Wireless reception via Wi-Fi
  • Programmable timer
  • Various programmable modes
  • With anti-freeze protection
Shipping (Amazon)
see vendor
Check Price
AmazonHoneywell RTH9585WF1004
Rating
Excellent01/2025

4

Honeywell RTH9585WF1004
Customer rating
Amazon17,159 reviews
Check Price
Available at
144,99 £
see vendordays
see vendordays
Manufacturer
Honeywell
Prduct features
Dimensions
0,9 x 3,5 x 4,5 in
Operating voltage
240 V
Display
Touch screen
Type of assembly
Glue
Radio technology
Wi-Fi, Wireless
Weekly program
Timer
Anti-freeze protection
Control
WLAN capable
App
Voice control
Advantages
  • App control
  • Is Wi-Fi capable
  • Timer included
  • Distinguishes between the working week and the weekend
Shipping (Amazon)
see vendor
Check Price
AmazonDrayton Wiser WT724R9K0902
Rating
Excellent01/2025

5

Drayton Wiser WT724R9K0902
Customer rating
Amazon1,866 reviews
Check Price
Available at
107,98 £
see vendordays00£
135,90 £
see vendordays3.423.42£
191,84 £
see vendordays00£
130,86 £
see vendordays00£
Manufacturer
Drayton Wiser
Prduct features
Dimensions
2,8 x 3,7 x 5,9 in
Operating voltage
230 V
Display
Type of assembly
Radio technology
Wi-Fi
Weekly program
Timer
Anti-freeze protection
Control
WLAN capable
App
Voice control
Advantages
  • No cable clutter thanks to Wi-Fi
  • Programmable timer
  • Can program settings for different days
Shipping (Amazon)
see vendor
Check Price
AmazonSpeedo smart thermostat
Rating
Excellent01/2025

6

Speedo smart thermostat
Customer rating
Amazon2,405 reviews
Check Price
Available at
153,62 £
see vendordays00£
see vendordays
Manufacturer
Speedo
Prduct features
Dimensions
2 x 3,9 x 5,9 in
Operating voltage
4,5 V
Display
Type of assembly
Glue, Screws
Radio technology
Wireless
Weekly program
Timer
Anti-freeze protection
Control
WLAN capable
App
Voice control
Advantages
  • No cable clutter thanks to Wi-Fi
  • Can program settings for different days
  • Has a practical timer
  • Control via app
Shipping (Amazon)
see vendor
Check Price
Best Price
Best Price
AmazonHomeMatic 143159A0
Rating
Excellent01/2025

7

HomeMatic 143159A0
Customer rating
Amazon4,753 reviews
Check Price
Available at
49,95 £
see vendordays00£
see vendordays
Manufacturer
HomeMatic
Prduct features
Dimensions
0,9 x 3,3 x 3,3 in
Operating voltage
1,5 V
Display
LC display
Type of assembly
Flush mounting, Adhesive tape, Screws, Surface-mounted
Radio technology
Wireless, 868 MHz
Weekly program
Timer
Anti-freeze protection
Control
WLAN capable
App
Voice control
Advantages
  • Can program settings for different days
  • Wireless reception via Wi-Fi
  • App control
  • Equipped with a frost anti-freeze protection
  • With voice control mode
  • Has a practical timer
Shipping (Amazon)
see vendor
Check Price

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