WhichOne › DIY store & garden › heating › heating system › radiator › radiator accessory › radiator thermostat › smart thermostat

The best smart thermostats in comparison

Guaranteed independent and reliable
Millions of satisfied users every year
Last updated on 28.04.2025

Filter

Sort

Brand:Reduced items only:

Best choice

Google Nest Learning Thermostat 3rd Generation, Copper - Smart Thermostat - A Brighter Way To Save Energy

Google

free shipping

show more show less

9,9

Check price

Show on Amazon

Features

Saving energy starts with your thermostat. Your thermostat controls 60 percent 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
Auto-Schedule. Just turn it up and down. It learns the temperatures that you like and creates a schedule for you
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
Hot water. Now you can control your hot water tank. And give your hot water a boost when you need it
OpenTherm technology. Nest now uses OpenTherm technology to modulate your high-efficiency condensing boiler

tado° Smart Thermostat Starter Kit V3+ - Intelligent heating control, works with Amazon Alexa, Apple HomeKit, Google Assistant, IFTTT

tado

56% off

free shipping

show more show less

9,8

Check price

Show on Amazon

Features

Further features Weather Adaptiation, Insightful Statistics, Energy Savings Report, multi room control (additional Smart Thermostats required), heating boost function, frost protection
Heating Boost heat up all rooms for 30 minutes with one click in the app
Smart Schedules for the perfect temperature individually in each room, at any time; only active when someone s home; can optionally be turned on and off with one click in the app
Compatible with almost every heating system including gas boilers, oil boilers, condensing boilers, OpenTherm systems & hydronic underfloor heating; replaces your conventional wired room thermostat
Further advantages with Auto Assist (optional) If no one is home or open windows have been detected, tado automatically turns down the heating; Care & Protect helps to solve heating problems (in-app purchase, cancel monthly; 2.99 month)

£ 88.95

£ 179.00

£ 222.49

Honeywell T6 Wired Smart Thermostat - Works with Amazon Alexa

Honeywell Home

free shipping

show more show less

9,7

Check price

Show on Amazon

Features

The Honeywell Home app gives you complete control over your home heating wherever you are, including schedules and automated synchronisation with the thermostat.
Scheduling to suit you. The T6 features a choice of schedule settings to fit your lifestyle, including 7 day, 5 2 day and single day scheduling with up to 6 different time settings per day.
Apple Homekit ready. The T6 is home kit enabled meaning it can be controlled using an Apple device (requires iOS 8.1 or later), as part of a suite of home kit compatible products.
The T6 also works with Google Home and IFTTT

£ 156.86

£ 85.00

Hive Thermostat for Heating & Hot Water (Conventional Boiler) with Hive Hub - Energy Saving Thermostat

Hive

free shipping

show more show less

9,6

Check price

Show on Amazon

Features

HIVE Plus 12 months free annual plan included with this purchase to help you save even more
Geolocation heating alerts when you leave or return home
Holiday Mode tell Hive your holiday dates and come back to a warm welcome
Hive App turn your heating on and off via the Hive app or with your voice

£ 149.00

£ 164.99

Netatmo Connected and Smart Energy Saving Thermostat - WiFi - Reduce Bills & Control Heating Remotely by App | Compatible with Individual Boilers, NTH01-AMZ

Netatmo

7% off

free shipping

show more show less

9,5

Check price

Show on Amazon

Features

CONSUMPTION INFORMATION AND ADVICE view your history and consult your personalized Energy Savings Report to track and optimize your energy usage
QUICK AND EASY TO INSTALL it takes less than an hour to install the Netatmo Smart Thermostat
A SMART THERMOSTAT the Auto-Adapt feature takes into account the outdoor temperature and your home's insulation to make sure your home stays at the temperature you set
COMPATIBILITY the Netatmo Smart Thermostat is compatible with most types of boiler, whichever energy you use electricity, gas, fuel oil, wood or heat pump
DESIGNED BY STARCK your Netatmo Smart Thermostat blends into your home d cor with a design by Philippe Starck and adhesive strips in four colors
IDEAL TEMPERATURE IN EACH ROOM use Netatmo Additional Smart Radiator Valves to turn radiators on and off independently

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

meross

26% off

free shipping

show more show less

9,4

Check price

Show on Amazon

Features

* ENERGY SAVING Save up to 30% heating costs! The alexa thermostat supports Muti-room function and open-window detection. Use multiple hubless smart thermostats to control different rooms; When detected window-open(temperature dropped sharply), you will get a window opening notification on phone while the room thermostat will stop heating for 30 minutes to avoid electricity waste.
DUAL TEMPERATURE SENSOR The meross Wi-Fi thermostat has a dual temperature sensor. The built-in sensor measures the air temperature in room, and the external sensor measures the temperature outside room. You can switch the sensor according to different scenarios to better control the heat while preventing overheating. Temperature control range 5-35 C; Accuracy 0.5 C.
SCHEDULE AND FAMILY SHARE Heating control by zone and time for maximum energy savings. In the meross app, you can clearly see the room temperature and set schedule. Support 7 24 schedule and 6 time windows day setting, including temperature control and heating on off for different rooms. If you are not an Apple Home user, you can still use meross app to achieve home sharing control to make your home temperature more comfortable.
EAST TO INSTALL USE NO HUB REQUIRED! The Wi-Fi heating thermostat is compatible with most boiler water underfloor heating systems. With app's install instructions or guide video(after product images on top), you can use the meross thermostat after few minutes. Meross app supports Android(above 6.0) and iOS system (13 or above). Quick touch control directly from elegant glass panel, even without using app.

Smart Thermostat for Combi Boiler/Water Underfloor Heating, WiFi Thermostat Works with Apple HomeKit Siri, Alexa, Google Home, Wired Installation, Support Remote Smart Heating Control

Refoss

25% off

free shipping

show more show less

9,4

Offer ends in:

13Days

09hours

52minutes

37seconds

Check price

Show on Amazon

Features

Smart Thermostat Control The WiFi heating thermostat is compatible with most boiler water underfloor heating systems. You can control the heating remotely using the free app Refoss or voice control, which is compatible with Apple HomeKit Siri, Amazon Alexa (Echo, Echo Dot), Google Home, or manual touchscreen control. Only 2.4GHz WiFi is supported, and no Hub is required.
Open Window Detection Function Save energy and reduce electricity bills! When a window is detected as open, the smart thermostat will automatically shut down for 30 minutes to avoid energy waste. The app will also send you notifications to remind you when the window is open.
Dual Temperature Sensor To accurately sense the room temperature for maximum home comfort, we utilize an internal sensor to detect air temperature and an external sensor wire to measure the floor temperature as needed (installing the external sensor wire is necessary for external sensing). You can switch between the sensors based on different scenarios to better control the heat while preventing overheating. Temperature control range 5-35 C; Measurement temperature accuracy 0.1 C.
Schedule and Multi-room Control You can add and delete scheduling functions, supporting up to 8 events per day. The thermostat allows for a 24 7 schedule for different rooms. Multiple Alexa thermostats can be used to control different rooms. The heating system turns on and adjusts the temperature automatically when you re at home and turns off automatically when you go out, based on the schedule you set.
Add Summer Mode Function The summer mode function can be utilized for cooling during the summer and necessitates a cooling-compatible system, such as an air-to-air heat pump system. Please note that certain features mentioned require the latest version of the app. Ensure that you update both your app and firmware. The iOS version has already been released, and the Android version will be available soon.

Recommendation

Evohome smart wireless zoning thermostat - works with Alexa

Honeywell

3% off

free shipping

show more show less

9,3

Check price

Show on Amazon

Features

Programming Modes Delayed start and optimum stop allow evohome to intelligently optimise timing. A learning TPI algorithm ensures each zone adapts to the weather and the seasons. Day off mode changes the schedule for all the zones to a pre-set day
Easy Installation evohome allows the installation of multiple temperature sensing devices around the property without altering existing pipework, disrupting decor or damaging fixtures and fittings. The thermostat can work with combi and system boilers
Inbuilt Optimisation Intuitive and versatile programming allows the unit to more efficiently control your home's heating and cooling needs. Save money with precise and handy controls
Fully Control Your System The evohome controller provides access for the installer to fully control the heating system, including the hot water heater. It is suitable for radiators, hydronic under floor and a mixture of both. Cycle rates, minimum on times and fail safe parameters can be set
Includes Wireless Boiler Relay Box The remote relay is wired into either a motorised zone valve or the boiler and provides the wireless interface between these devices and the evohome system

£ 207.02

£ 263.99

KETOTEK WiFi Smart Thermostat for Boiler 3A 220V Compatible with Alexa, Digital White Boiler Thermostat Programmable Tuya/Smart Life APP Remote Control, Dry Contact

KETOTEK

free shipping

show more show less

9,3

Check price

Show on Amazon

Features

Smart Heating, Anywhere Control - Effortlessly connect your KETOTEK boiler thermostat WiFi to your home network for seamless remote control. Adjust temperatures from anywhere using the Tuya Smart Life App, or enjoy hands-free comfort with Alexa & Google Assistant voice commands. Stay cozy and energy-efficient with smart, hassle-free heating. Requires 2.4GHz WiFi (not 5GHz).
Energy-Saving Automation - Choose Program, Manual, or Holiday mode to match your routine. Program mode offers 5-2, 6-1, or 7-0 day weekly schedules with 6 customizable time temperature settings per day, saving energy by heating only when needed. With Smart Window Detection, the smart boiler thermostat pauses heating if sudden temperature drops (like an open window) occur, saving energy and money.
Easy Installation & Safe Use - This smart thermostat for boiler is made of durable and flame-retardant materials for safety and durability. It includes child-lock and frost protection to prevent accidents and freezing. Easy to install with a flush-mount design, it works with most boiler systems (3A max). Note Ports 5 & 6 connected to the boiler are dry-contact (no voltage) ensure your boiler supports this.
Precise Temperature Management - This boiler thermostat WiFi features precise temperature control, adjustable from 1 to 70 (default range 5 35 ), with 9 calibration for enhanced accuracy. Equipped with a high-precision built-in sensor, it continuously monitors room temperature in real time to prevent overheating or overcooling. Additionally, its power-off memory function ensures your settings are retained even during unexpected outages.
Reliable Performance - This boiler thermostat WiFi offers smart scheduling and automation reduce wasted heating, ideal for those who want remote control, voice commands, and energy savings while ensuring safety and ease of use. You can group and control multiple thermostats simultaneously in the app or share access with family for collaborative control. Power supply AC 90-240V 50 60Hz, Output Max 3A.

Drayton by Schneider Electric Smart Radiator Thermostat, Black

Drayton by Schneider Electric

free shipping

show more show less

9,3

Check price

Show on Amazon

Features

This radiator thermostat is only designed to work alongside an existing Wiser Smart Heating System with a Wiser Heat Hub. Replace your existing radiator TRV valves to give room-by-room heating control.
Full heating control can be monitored and schedules updated via the Wiser App (IOS and Android).
Use voice commands to check the status and make changes to individual rooms or groups of rooms. Fully compatible with Alexa, Google Assistant and IFTTT.

£ 50.43

£ 267.75

This ranking is created through algorithmic analysis of millions of products tailored specifically to your search. We aim to find the most suitable product for you based on manufacturer information and price. The ranking reflects our opinion and should serve as a good starting point for your purchase. We would like to point out that we have not tested the products ourselves and link to selected online shops and partners from which we may receive compensation.

You might also be interested in these smart thermostats.

Bosch Smart Home Room Thermostat II for Controlling Smart Radiator thermostats

Convenient control Heating can be adjusted on the device itself using a rotary push knob or via the app from a remote location

~~£ 70.95~~ free shipping

Check price

MOES 3.5'' Smart Home Display, All-in-One Control Panel, Integrated BLE & Mesh Hub, IR Remote Control, Control Tuya Smart Switches, Doorbells, Thermostats, Compatible with Alexa & Google Home

5. The control panel integrates with Tuya-enabled door access systems and various smart security devices. It can be used to manage lighting, climate control, and home security functions

~~£ 199.00~~ free shipping

Check price

Beok Tuya Smart Thermostat Heating Thermostat Room Thermostats Wifi Smart Wall Thermostats for Gas/Water Boiler Floor Heating Compatible with Alexa, Google Home 3A TGR86WIFI

Onilne Simple Control APP Underfloor heating thermostat, the thermostat is suitable for boilers and water heaters, you can control this thermostat online through the "Tuya" app, and your smartphone can control the thermostat anytime you want. Anywhere, change the room temperature in go ahead and improve your lifestyle features and view the current status through the app.

free shipping

Check price

Nest Thermostat, Smart Thermostat for Home - Programmable Wifi Thermostat - Snow, Bluetooth Thermometer with 1.32in TFT Screen, Control Via Cell Phone or Smart Voice

SMART VOICE CONTROL Connect your knob thermostat to your smart home system, adjust the temperature using your smartphone or voice commands anytime and anywhere, and enjoy the convenience of remote control

free shipping

Check price

Salus RT310RF Wireless Thermostat, White

Thermostat

~~£ 40.69~~ free shipping

Check price

TP-Link Kasa Smart Radiator Thermostat Starter Bundle - 1xKE100 Kit + 3xKE100 Valves, Energy Saving, LED Display, Smart Schedule, Alexa & Google Home Compatible, No Bridge Required

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

~~£ 189.96~~

Check price

Jadeshay Smart WiFi Thermostat, Digital Programmable Touch Screen Heating Thermostat, White, Wi-Fi, Modern Style

1. WiFi Control Function The thermostat turns the heating system and gas boilers on and off according to a temperature limit and a preset period of time. Wireless design, which allows you to control the thermostat remotely via the smartphone app "Tuya Smart" or "Smart Life", and enjoy voice control with "Alexa" or "Google Assistant".

~~£ 31.49~~ free shipping

Check price

Dreo Smart Electric Wall Heater, 28dB Silent Ceramic Space Heaters for Home, Low Energy, 30° Oscillation, Adjustable Thermostat, 24H Timer, IP24 Wall Mounted for Bedroom, Works with Alexa

Constructed with 5VA flame-retardant materials, overheat protection, and an IP24 waterproof rating, this heater ensures secure, worry-free warmth all day. Perfectly suited for bedrooms, bathrooms, and offices, it offers peace of mind while keeping you cozy.

~~£ 109.99~~ free shipping

Check price

ENGO E20i Wireless Smart Thermostat 7 Day Programmable Wifi Smart Heating Controller Alexa Google ENGO Smart App Boiler Control (White)

Stylish and Discreet Available in black or white, the compact design fits into any home without being obtrusive

free shipping

Check price

EZAIoT Smart Thermostat- For Gas/Combi Boilers - Wall Mounted WiFi Temperature Controller - Programmable Room Thermostat - Floor Heating - Alexa and Google Assistant Voice Control

Important Note The ezAIoT Smart underfloor heating thermostat is a wall-mounted device for controlling water-based underfloor heating systems; it is compatible with gas boilers that use dry contact signal control; a delay circuit can be configured from zero to five minutes; installation requires a live wire (L) and a neutral wire (N); the device operates on one hundred to two hundred forty volts AC; the maximum current rating is three amps; please note that it does not operate on battery power

free shipping

Check price

Inkbird C236T Thermostat Plug Socket, WIFI Temperature Controller for Heating and Cooling, App Control, Digital Thermostat Outlet Plug for Reptile, Aquarium, Incubation, Lizard, Vivarium

10-in-1 Operation The thermostat combines 4 control functions in 1 temperature control mode, timing mode, timing + temperature control mode and manual mode. There are up to 10 operation modes to choose from, flexible enough to meet various needs

~~£ 39.99~~ free shipping

Check price

Heatmiser NeoHub Gen 2 Home Internet Gateway Neo Hub for Use With Heatmiser Thermostat Neo Series Neostat NeoAir NeoPlug LavaTap Smart Home

Seamless Integration The Heatmiser Neo Smart Home App hub allows for easy integration of Neo model devices, enabling centralised control for a smoother user experience

free shipping

Check price

The best smart thermostats in comparison

Guaranteed independent and reliable

Features

Features

Features

Features

Features

Features

Features

Features

Features

Features

You might also be interested in these smart thermostats.

Our offer