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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
HomeMatic 143159A0
HomeMatic 143159A0
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Amazon
Speedo smart thermostat
Speedo smart thermostat
Check Price
Amazon
Bestseller
Bosch 8750002330
Bosch 8750002330
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Amazon
HIVE 851811
HIVE 851811
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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
HomeMatic 143159A0
Vergleichsergebnis
Rating
Excellent
01 / 2025
Model
HomeMatic 143159A0
Bewertung
4827 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
2
Speedo smart thermostat
Vergleichsergebnis
Rating
Excellent
01 / 2025
Model
Speedo smart thermostat
Bewertung
2488 Reviews
Zum Anbieter
Amazon
Available at
amazon
£164.74
Manufacturer
Speedo
Dimensions
2 x 3,9 x 5,9 in
Operating voltage
4,5 V
Display
Type of assembly
Glue, Screws
IP protection class
Radio technology
Wireless
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
3
Bestseller
Bosch 8750002330
Vergleichsergebnis
Rating
Excellent
05 / 2025
Model
Bosch 8750002330
Bewertung
2256 Reviews
Zum Anbieter
Amazon
Available at
amazon
£72.00
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
4
HIVE 851811
Vergleichsergebnis
Rating
Excellent
01 / 2025
Model
HIVE 851811
Bewertung
263 Reviews
Zum Anbieter
Amazon
Available at
amazon
£120.99
eBay
£189.00
Manufacturer
HIVE
Dimensions
5,9 x 24,4 x 24,4 in
Operating voltage
Display
Type of assembly
IP protection class
Radio technology
Wireless
Temperature range
Weekly program
Timer
Anti-freeze protection
WLAN capable
App
Voice control
Advantages
  • No cable clutter thanks to Wi-Fi
  • Programmable timer
  • App control
  • Various programmable modes
  • Features voice control
5
Tado V3+
Vergleichsergebnis
Rating
Excellent
01 / 2025
Model
Tado V3+
Bewertung
1946 Reviews
Zum Anbieter
Amazon
Available at
amazon
£99.95
eBay
£52.62
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
£74.99
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
£106.38
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