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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
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Amazon
Bestseller
Bosch 8750002330
Bosch 8750002330
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Amazon
Best Price
Eurotronic Comet Plus
Eurotronic Comet Plus
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Amazon
HomeMatic 143159A0
HomeMatic 143159A0
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Amazon
Speedo smart thermostat
Speedo smart thermostat
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Amazon
Netatmo NTH01-DE-EC
Netatmo NTH01-DE-EC
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Amazon
Danfoss Eco 2
Danfoss Eco 2
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Amazon
Our Ratings
Model
Customer Ratings
Seller
Available From
Manufacturer
Dimensions
Operating voltage
Display features
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
05 / 2026
Model
Tado smart thermostat
Bewertung
2747 Reviews
Zum Anbieter
Amazon
Available at
amazon
£159.19
eBay
£156.70
Manufacturer
Tado
Dimensions
2,7 x 3,5 x 6,9 in
Operating voltage
230 V
Display features
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 / 2026
Model
Bosch 8750002330
Bewertung
2044 Reviews
Zum Anbieter
Amazon
Available at
amazon
£59.38
eBay
£54.99
Manufacturer
Bosch
Dimensions
20,1 x 20,1 x 29,9 in
Operating voltage
1,5 V
Display features
LC display
Type of assembly
Surface-mounted, Glue, Adhesive tape, Screws
IP protection class
IP20
Radio technology
Wireless, Wi-Fi
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
Best Price
Eurotronic Comet Plus
Vergleichsergebnis
Rating
Excellent
05 / 2026
Model
Eurotronic Comet Plus
Bewertung
5040 Reviews
Zum Anbieter
Amazon
Available at
amazon
£1.00
eBay
Check Price
Manufacturer
Eurotronic
Dimensions
21,7 x 25,6 x 30,7 in
Operating voltage
3 V
Display features
LC display, LED display
Type of assembly
Hanging
IP protection class
IP20
Radio technology
Bluetooth, 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
HomeMatic 143159A0
Vergleichsergebnis
Rating
Excellent
05 / 2026
Model
HomeMatic 143159A0
Bewertung
2816 Reviews
Zum Anbieter
Amazon
Available at
amazon
£49.05
eBay
Check Price
Manufacturer
HomeMatic
Dimensions
8,7 x 33,5 x 33,5 in
Operating voltage
1,5 V
Display features
LC display
Type of assembly
Surface-mounted, Glue, Adhesive tape, Screws, Flush mounting
IP protection class
IP14, IP15, IP20, IP44
Radio technology
868 MHz, Wireless, Wi-Fi
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
Speedo smart thermostat
Vergleichsergebnis
Rating
Excellent
05 / 2026
Model
Speedo smart thermostat
Bewertung
2515 Reviews
Zum Anbieter
Amazon
Available at
amazon
£179.99
Manufacturer
Speedo
Dimensions
Operating voltage
4,5 V
Display features
Type of assembly
Glue, Screws
IP protection class
Radio technology
Wireless, Wi-Fi
Temperature range
Weekly program
Timer
Anti-freeze protection
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
6
Netatmo NTH01-DE-EC
Vergleichsergebnis
Rating
Excellent
05 / 2026
Model
Netatmo NTH01-DE-EC
Bewertung
563 Reviews
Zum Anbieter
Amazon
Available at
amazon
£145.60
eBay
Check Price
Manufacturer
Netatmo
Dimensions
0,9 x 3,3 x 3,3 in
Operating voltage
1,2 V
Display features
LC display
Type of assembly
Glue, Adhesive tape, Screws, Wall mounting
IP protection class
Radio technology
Wireless, Wi-Fi
Temperature range
0 to 50 °C
Weekly program
Timer
Anti-freeze protection
WLAN capable
App
Voice control
Advantages
  • With anti-freeze protection
  • Control via app
  • Easy to control with through voice control
  • Distinguishes between the working week and the weekend
  • Has a practical timer
  • Wireless reception via Wi-Fi
7
Danfoss Eco 2
Vergleichsergebnis
Rating
Very Good
05 / 2026
Model
Danfoss Eco 2
Bewertung
708 Reviews
Zum Anbieter
Amazon
Available at
amazon
£74.99
eBay
Check Price
Manufacturer
Danfoss
Dimensions
1,2 x 1,2 x 1,6 in
Operating voltage
1,5 V
Display features
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