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Smart Thermostat Comparison - August 2025
7 Best Smart Thermostat In the UK
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
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Overview: Not sure which smart thermostat is right for you? Check out our comparison page to help you make a decision. We compare the top brands on the market to help you find the perfect match for your needs.
Google Nest Learning Thermostat 3rd Generation, Stainless Steel - Smart Thermostat - A Brighter Way To Save Energy
Model
TP-Link Kasa Smart Thermostat Radiator Valve, Smart Radiator Valve, Energy Saving, LED display Radiator Thermostat Valve, Smart TRV Schedule, Works with Alexa & Google Home, Easy installation(KE100)
Model
tado Wireless Smart Thermostat X – Starter Kit with Bridge X and Stand, Boiler and Hot Water Control via App & Smart Speaker (Alexa, Siri, Google Assistant), Not Compatible with tado V3+
Model
Meross Smart Thermostat for Combi Boilers and Underfloor Water Heating, Glass Touch Panel, Schedule and Multi-room Function, Hubless, Compatible with Apple HomeKit, Amazon Alexa, Google Assistant
Model
Beok Wifi Thermostat for Gas Boiler Smart Wireless Room Thermostats Wall Digital Thermostat Central Heating Controller Compatible with Tuya App, Alexa, Google Home 3A TGR86WIFI
Model
New Hive Thermostat for Heating Control (Combi boilers) Nano 3 (Opentherm), White
Model
New Hive Thermostat Mini Heating (Combi boilers and multizone Hubless) with Opentherm, White
Brand
Google
Brand
TP-Link
Brand
tado
Brand
meross
Brand
BEOK CONTROLS
Brand
Hive
Brand
Hive
Reviews
24,654 reviews
Reviews
762 reviews
Reviews
4,020 reviews
Reviews
1,014 reviews
Reviews
468 reviews
Reviews
-
Reviews
-
Features
Temperature control
8.9
Temperature control
9.1
Temperature control
9.1
Temperature control
9.1
Temperature control
9.9
Temperature control
9.6
Temperature control
9.4
Integrate with alexa
8.4
Integrate with alexa
9.9
Integrate with alexa
9.9
Integrate with alexa
9.3
Integrate with alexa
8.4
Integrate with alexa
7.6
Integrate with alexa
7.4
Easy installation
7.7
Easy installation
9.3
Easy installation
9.1
Easy installation
9.1
Easy installation
9.4
Easy installation
8.4
Easy installation
8.1
Simple to use
9.4
Simple to use
9.1
Simple to use
8.9
Simple to use
9.4
Simple to use
9.4
Simple to use
8.9
Simple to use
8.6
Tech support
7.4
Tech support
9.9
Tech support
9.9
Tech support
9.3
Tech support
9.6
Tech support
9.1
Tech support
8.9
Tech Specs
item weight
220 g
item weight
300 g
item weight
890 g
item weight
-
item weight
200 g
item weight
800 g
item weight
410 g
batteries required
No
batteries required
Yes
batteries required
Yes
batteries required
No
batteries required
-
batteries required
No
batteries required
No
color
Stainless Steel
color
White
color
Black
color
-
color
Wifi Gas Boiler Heating 3a
color
White
color
White
customer reviews
4.4 4.4 out of 5 stars 8, 218 ratings 4.4 out of 5 stars
customer reviews
4.3 4.3 out of 5 stars 254 ratings 4.3 out of 5 stars
customer reviews
4.3 4.3 out of 5 stars 1, 340 ratings 4.3 out of 5 stars
customer reviews
4.2 4.2 out of 5 stars 338 ratings 4.2 out of 5 stars
customer reviews
4.0 4.0 out of 5 stars 156 ratings 4.0 out of 5 stars
customer reviews
-
customer reviews
-
item package quantity
1
item package quantity
1
item package quantity
1
item package quantity
-
item package quantity
-
item package quantity
1
item package quantity
1
style
Thermostat
style
Smart Radiator Thermostat Add-on x 1
style
X Starter Kit: Wireless Heating & Hot Water
style
-
style
-
style
Modern
style
Indoor Installation
included components
Nest Thermostat
included components
1 x Cover Opener, KE100, 2 x AA/LR6 batteries, 1 x RA adapter
Here are the top 3 recommended products with more information to help you find the right product for you
9.8
1
Google
14% Off
Google Nest Learning Thermostat 3rd Generation, Stainless Steel - Smart Thermostat - A Brighter Way To Save Energy
9.4Simple to use
8.9Temperature control
8.4integrate with Alexa
Why we love it
Learns your preferred temperatures automatically.
Saves energy with smart scheduling.
Remote control from devices anywhere.
Main highlights
Saving energy starts with your thermostat. Your thermostat controls 60% of your energy bill. So shouldn’t it help you save energy? The Nest Learning Thermostat does. Since 2011, it’s saved over 4 billion kWh of energy in millions of homes worldwide*. Because it learns from you. It gets to know the temperature that you like while you’re at home. And turns itself down when you’re away. It even learns how your home warms up or how draughty it is, so it only uses the energy that it needs
Remote control. Change the temperature and control your hot water tank from anywhere using your mobile, tablet or laptop
Pro install. The Nest Thermostat should be installed by a Nest Pro who will make sure that it’s in the right location, connect the Heat Link and set it up for you. Find a local pro at nest.com/eu/install
OpenTherm technology. Nest now uses OpenTherm technology to modulate your high-efficiency condensing boiler
Hot water. Now you can control your hot water tank. And give your hot water a boost when you need it
Home/Away Assist. It automatically adjusts the temperature after you’ve left. It can even turn off your hot water if you’re away for a few days
Farsight. When the Nest Thermostat spots you across the room, it lights up beautifully to show you the time, temperature or weather
Better together. The Nest Thermostat works with Nest Protect. If Nest Protect detects dangerous carbon monoxide gas, it can tell the Nest Thermostat to turn off the boiler - a common source of CO leaks
Auto-Schedule. Just turn it up and down. It learns the temperatures that you like and creates a schedule for you
Show more
9.7
2
TP-Link
33% Off
TP-Link Kasa Smart Thermostat Radiator Valve, Smart Radiator Valve, Energy Saving, LED display Radiator Thermostat Valve, Smart TRV Schedule, Works with Alexa & Google Home, Easy installation(KE100)
9.9integrate with Alexa
9.9Tech Support
9.3Easy installation
Why we love it
Effortless geofencing for seamless comfort.
Control radiators remotely via smartphone.
Voice control with Alexa and Google Assistant.
Main highlights
Saving Energy Made Easy- The Kasa Smart Thermostatic Radiator Valve allows you to set heating schedules based on your daily routines to make heating more efficient and save your money
Open Window Detection: KE100 now auto-shuts the heat and enables Frost Protection when the connected window & door sensor (Tapo T110) activates; Enjoy comfort; energy savings and peace of mind
Note: KE100 Thermostat valve Requires a Kasa Hub KH100 to work, and this information is clearly mentioned on our official website and Amazon website; Customers will need to read the description clearly before making purchase; KE100 Thermostat valve can only control radiator valves and cannot be used to control central boiler or thermostat
Kasa APP Requirements: Version 3.1.4 on IOS or Version 3.1.1 on Android (Doesn't work with Tapo)
Hands-Free Voice Control- Ask Alexa or Google Assistant to fine-tune your home’s temperature; No need to get up from the sofa
Geofencing for Free: Introducing geofencing support-your home warms as you approach and cools when you leave; No manual tweaks required just seamless comfort and convenience
Frost Protection - Keep your pipes unfrozen and your house safe; With easy installation, Just simply replace your old radiator valve with Kasa and follow the step-by-step in-app guide
External Temp Sensor Supported: With external temperature sensors (Tapo T310 or T315); KE100 adjusts heat based on your space not just near the radiator
Device Group Control: Group several smart radiator valves and control them with one tab; Ideal for larger room with more than one radiator
Control from Anywhere – Control all your radiators in each room from your phone; No more guessing if you left the heating on; No more heating an empty room
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9.5
3
tado
tado Wireless Smart Thermostat X – Starter Kit with Bridge X and Stand, Boiler and Hot Water Control via App & Smart Speaker (Alexa, Siri, Google Assistant), Not Compatible with tado V3+
9.9integrate with Alexa
9.9Tech Support
9.1Temperature control
Main highlights
SAVES ENERGY AND HEATING COSTS: The intelligent wireless Thermostat X Starter Kit from tado, the experts for smart heating, contains the Bridge X and, exclusive for Amazon customers, a stand – the more rooms your control, the more you save
OPTIONAL FEEL-GOOD PACKAGE: Auto-Assist provides you with insights into the energy costs, information and solutions for heating problems as well as automated geofencing and open-window detection
Important to know: tado X products are not compatible with tado V3+ or older
FUTURE-PROOF TECHNOLOGY: Matter allows different smart home appliances to communicate with each other, while Thread ensures a stable network – this requires the Bridge X (included) or another Thread border router
FOR YOUR SMART HOME Control the individual temperature in each room with the industry’s leading multizone control, very simply by app or via smart speaker with Amazon Alexa, Google Assistant or Apple Siri
EASY TO USE: The thermostat is operated intuitively via the display
EASY DIY INSTALLATION, EVEN OFFLINE: When connected to a boiler, this smart heater thermostat can regulate hot water – suitable for gas-fired boilers or heat pumps (OpenTherm and relay)
CONTROL VIA APP: Smart scheduling, advanced geofencing, open-window sensor without additional window contacts and much more – the thermostat has numerous features for your heating system
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Our ranking system
The TopChoice.co.uk Team selects top-of-the-line items from a wide selection and conducts rigorous evaluations on almost all the products available on the internet. We rank each product based on how well it matches our criteria. We can ensure that the product is well-tested with the help of our expertise, experts, and artificial intelligence technology. TopChoice.co.uk requires consistent care for the products we review, ensuring that our assessments are always accurate and up to date.
Features
Our team of experts analyzes key attributes, capabilities, significance, and many more depending on the type of product to determine its effectiveness.
Consumer Reviews
We ensure an evaluation of the ratings using references all over the internet for each product. With the help of our AI technology and professional review teams, we give weight to the worth of individual user experiences.
Popularity
Popularity is an important criterion in choosing a product. Several factors contribute to the popularity of the products on our site, including prestige, relevance, reputation, news, and more.
Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.
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.
Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.
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.
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9.9 
9.8
1Google14% Off
Learns your preferred temperatures automatically.
