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Best Smart Thermostats

Smart Thermostat Comparison 2026

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thermostat thermostat smart thermostat smart thermostat home thermometer home thermometer radiator thermostat radiator thermostat
Best Product
Tado smart thermostat
Tado smart thermostat
Check Price
Amazon
Bestseller
Bosch 8750002330
Bosch 8750002330
Check Price
Amazon
Eurotronic Comet Plus
Eurotronic Comet Plus
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Amazon
Best Price
HomeMatic 143159A0
HomeMatic 143159A0
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Amazon
Tado V3+
Tado V3+
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Amazon
Danfoss Eco 2
Danfoss Eco 2
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Amazon
WHITE-RODGERS DIVISION ST55
WHITE-RODGERS DIVISION ST55
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Amazon
Our Ratings
Model
Customer Ratings
Seller
Available From
Manufacturer
Dimensions
Operating voltage
Display
Type of assembly
IP protection class
Radio technology
Temperature range
Weekly program
Timer
Anti-freeze protection
WLAN capable
App
Voice control
Advantages
1
Best Product
Tado smart thermostat
Vergleichsergebnis
Rating
Excellent
01 / 2025
Model
Tado smart thermostat
Bewertung
5079 Reviews
Zum Anbieter
Amazon
Available at
amazon
£122.87
eBay
£156.70
Manufacturer
Tado
Dimensions
2,7 x 3,5 x 6,9 in
Operating voltage
230 V
Display
LC display
Type of assembly
Glue
IP protection class
Radio technology
Wireless
Temperature range
Weekly program
Timer
Anti-freeze protection
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
2
Bestseller
Bosch 8750002330
Vergleichsergebnis
Rating
Excellent
05 / 2025
Model
Bosch 8750002330
Bewertung
2171 Reviews
Zum Anbieter
Amazon
Available at
amazon
£65.01
eBay
Check Price
Manufacturer
Bosch
Dimensions
2 x 2 x 3,4 in
Operating voltage
1,5 V
Display
LC display
Type of assembly
Glue, Screws, Adhesive tape
IP protection class
IP20
Radio technology
Wireless
Temperature range
0 to 50 °C
Weekly program
Timer
Anti-freeze protection
WLAN capable
App
Voice control
Advantages
  • No cable clutter thanks to Wi-Fi
  • With anti-freeze protection
  • With app
  • Has a practical timer
  • Can program settings for different days
  • Easy to control with through voice control
3
Eurotronic Comet Plus
Vergleichsergebnis
Rating
Excellent
05 / 2025
Model
Eurotronic Comet Plus
Bewertung
5039 Reviews
Zum Anbieter
Amazon
Available at
amazon
£71.99
eBay
£71.69
Manufacturer
Eurotronic
Dimensions
2 x 2,6 x 30,3 in
Operating voltage
3 V
Display
LED display
Type of assembly
Hanging
IP protection class
IP20
Radio technology
Wireless, Wi-Fi
Temperature range
Weekly program
Timer
Anti-freeze protection
WLAN capable
App
Voice control
Advantages
  • Control via app
  • Wireless reception via Wi-Fi
  • Programmable timer
  • Various programmable modes
  • With anti-freeze protection
4
Best Price
HomeMatic 143159A0
Vergleichsergebnis
Rating
Excellent
01 / 2025
Model
HomeMatic 143159A0
Bewertung
4771 Reviews
Zum Anbieter
Amazon
Available at
amazon
£49.95
eBay
Check Price
Manufacturer
HomeMatic
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
IP protection class
IP44, IP20, IP14
Radio technology
Wireless, 868 MHz
Temperature range
0 to 35 °C
Weekly program
Timer
Anti-freeze protection
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
5
Tado V3+
Vergleichsergebnis
Rating
Excellent
01 / 2025
Model
Tado V3+
Bewertung
4877 Reviews
Zum Anbieter
Amazon
Available at
amazon
£119.75
eBay
£73.49
Onbuy.com
£108.41
Manufacturer
Tado
Dimensions
2,8 x 6,9 x 6,9 in
Operating voltage
4,5 V
Display
LED display
Type of assembly
Screws, Surface-mounted
IP protection class
Radio technology
Wireless, 868 MHz, Wi-Fi
Temperature range
Weekly program
Timer
Anti-freeze protection
WLAN capable
App
Voice control
Advantages
  • Is Wi-Fi capable
  • Timer included
  • Features voice control
  • Control via app
  • Various programmable modes
6
Danfoss Eco 2
Vergleichsergebnis
Rating
Very Good
05 / 2025
Model
Danfoss Eco 2
Bewertung
711 Reviews
Zum Anbieter
Amazon
Available at
amazon
£100.99
eBay
Check Price
Manufacturer
Danfoss
Dimensions
1,2 x 1,2 x 1,6 in
Operating voltage
1,5 V
Display
LC display
Type of assembly
Screws
IP protection class
IP20
Radio technology
Bluetooth, Wireless
Temperature range
4 to + 28 °C
Weekly program
Timer
Anti-freeze protection
WLAN capable
App
Voice control
Advantages
  • Timer included
  • With app
  • With anti-freeze protection
  • Can program settings for different days
  • Wireless reception via Wi-Fi
7
WHITE-RODGERS DIVISION ST55
Vergleichsergebnis
Rating
Good
01 / 2025
Model
WHITE-RODGERS DIVISION ST55
Bewertung
Zum Anbieter
Amazon
Available at
amazon
£134.14
eBay
Check Price
Manufacturer
Dimensions
1 x 3,7 x 5,9 in
Operating voltage
24 V
Display
Type of assembly
IP protection class
Radio technology
Wireless
Temperature range
Weekly program
Timer
Anti-freeze protection
WLAN capable
App
Voice control
Advantages
  • Programmable timer
  • App control
  • Distinguishes between the working week and the weekend
  • Is Wi-Fi capable