Looking for the best smart thermostat in the UK to upgrade your home’s heating? With so many choices, finding the right balance of convenience, efficiency, and cost can be tricky. But don’t worry—we’ve got you covered!

In this guide, we highlight top-rated smart thermostats, focusing on energy savings, smart home compatibility, and ease of use. Whether you want high-tech automation, budget-friendly efficiency, or full heating control, we’ve tested the best options for UK homes.

After 40+ hours of testing, the Tado° Wireless Smart Thermostat X earned our Editor’s Pick for its intuitive app, energy-saving automation, and smart home integration.

If you prefer a thermostat that learns your schedule, the Google Nest Learning Thermostat (4th Gen, 2024) impressed us with its AI-driven adjustments and sleek design. On a budget? The Hive Thermostat for Heating (Combi Boiler) delivers great value and easy-to-use controls.

However, not all smart thermostats perform well. The MOES WiFi Thermostat failed in durability, connectivity, and reliability, making it one to avoid.

Whatever your needs, our guide has the best smart thermostats for UK homes—helping you take control of your heating and save on energy bills. Read on to find your perfect fit!

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Everything Your Smart Thermostat Should Offer

When shopping for the best smart thermostat in the UK, certain features should be considered a given to ensure seamless operation, efficiency, and convenience. A high-quality smart thermostat should offer:

• Smart App Control: Allows remote temperature adjustments via a smartphone app.
• Smart Home Integration: Works with Alexa, Google Home, and Apple HomeKit for voice control.
• Energy Efficiency Features: Optimises heating schedules to reduce energy consumption and lower bills.
• Geofencing: Automatically adjusts heating when you leave or return home.
• Custom Scheduling: Enables daily and weekly heating programs for precise control.
• Learning Capabilities: Adapts to your routine over time for automatic adjustments.
• Multi-Zone Heating: Controls different rooms independently for enhanced efficiency.
• Frost Protection: Prevents pipes from freezing in cold weather.
• Reliable Connectivity: Stable Wi-Fi or Zigbee connection to ensure responsiveness.
• Easy Installation: It should include clear instructions and minimal wiring requirements.

Design and Build Quality

A well-designed smart thermostat should be both functional and visually appealing, blending seamlessly with modern interiors. Key aspects to look for include:

• Sleek and Modern Aesthetics: A clean, minimalist design that complements your home.
• Clear Digital Display: High-contrast screens with easy-to-read temperature and status indicators.
• Durable Construction: Built from quality materials to withstand long-term use.
• User-Friendly Interface: Intuitive controls and touchscreen options for ease of use.
• Compact Size: Should not be bulky or intrusive when mounted on the wall.

Next-Level Features to Look For

Premium smart thermostats often come with additional features that enhance user experience and convenience. While not essential, these extras can improve functionality:

• Humidity Sensors: Helps regulate indoor air quality alongside temperature control.
• Weather Tracking: Adjusts heating based on live weather updates.
• Open Window Detection: Pauses heating when a sudden temperature drop is detected.
• Energy Reports: Provides insights into energy usage and cost-saving recommendations.
• Battery Backup: Ensures continued operation during power outages.
• Voice Commands: Hands-free temperature control via smart assistants.
• Subscription-Free Functionality: Core features should work without requiring a paid plan.

By keeping these factors in mind, you can confidently choose a smart thermostat that meets your heating needs while offering convenience, energy savings, and long-term reliability.

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Editors Pick

Tado° Wireless Smart Thermostat X

The Tado° Wireless Smart Thermostat X is a smart, energy-efficient solution for controlling home heating and hot water. With an intuitive app, compatibility with major smart home systems, and easy installation, it provides a seamless way to manage temperature while reducing energy costs.

Key Features

• Smart Control via App: Adjust heating and hot water settings from anywhere using the Tado app.
• Auto-Assist Feature: Automatically adapts temperature based on occupancy, improving energy efficiency.
• Multi-Zone Heating: Add additional thermostats to control different rooms independently.
• Matter Compatibility: Works with Alexa, Apple HomeKit, and Google Home for voice-activated adjustments.
• DIY Installation: Simple setup process with guided instructions for easy self-installation.

The Tado° Wireless Smart Thermostat X is an impressive solution for managing home heating and hot water. We found installation to be surprisingly simple, thanks to the step-by-step guidance, making it accessible even for those with no prior wiring experience.

The intuitive app allows easy temperature adjustments and scheduling, while geofencing ensures energy is not wasted when no one is home. Smart home compatibility (Alexa, Apple HomeKit, and Google Home) makes controlling heating even more seamless.

Adding smart radiator valves takes efficiency to the next level, enabling room-specific control. A few features, like full home automation, require additional thermostats and some advanced options need a subscription, but these do not take away from its overall brilliance.

For those seeking a smart, energy-efficient thermostat, the Tado° Wireless Smart Thermostat X is a fantastic choice that combines modern convenience with real energy savings.

Runner Up

Google Nest Learning Thermostat (4th Gen, 2024) with Nest Temperature Sensor

The Google Nest Learning Thermostat (4th Gen, 2024) is a smart, energy-efficient way to manage home heating and cooling. With automated learning, precise temperature control, and seamless smart home integration, it’s a powerful upgrade for any household.

Key Features

• Smart Learning & Automation: Learns daily habits and adjusts temperature settings automatically for improved efficiency.
• Energy Savings: Helps lower heating and cooling costs by optimising energy use based on schedule and activity.
• Temperature Sensors for Room Customisation: The included Nest Temperature Sensor allows for targeted temperature control in specific rooms.
• Seamless Smart Home Integration: Works with Google Home and Alexa for hands-free voice control and remote access via the app.
• Sleek, Modern Design: Features a borderless display with Dynamic Farsight, ensuring clear visibility from across the room.
• Easy Installation: Most homes won’t require a C wire, and setup takes around 40 minutes.

The Google Nest Learning Thermostat (4th Gen, 2024) is an impressive upgrade for any smart home. It learns our schedule, adjusts automatically, and optimises energy use—helping to cut down on heating and cooling costs.

The Nest Temperature Sensor is a standout feature, allowing us to fine-tune comfort in different rooms. Its sleek, modern design (with a borderless display and Dynamic Farsight) makes it both stylish and functional.

Integration with Google Home and Alexa provides effortless control through voice commands or the app. Installation was straightforward, with most homes not requiring a C wire.

While the price is on the higher side, the long-term savings make it a worthwhile investment. App compatibility may require adjustment for some users, but the transition is smooth.

Overall, this is one of the smartest, most efficient thermostats we’ve used—a must-have for anyone serious about energy savings and home automation.

Budget Pick

Hive Thermostat for Heating (Combi Boiler) with Hive Hub

The Hive Thermostat is a smart, user-friendly solution designed to improve home heating efficiency. With remote access, intelligent scheduling, and seamless installation, it offers convenience and energy savings for households using combi boilers.

Key Features

• Smart Controls: Adjust heating remotely via the Hive app or use voice control with Alexa and Google Assistant.
• Geolocation Alerts: Automatically adjusts heating when leaving or returning home.
• Custom Scheduling: Set up to six daily time slots for better energy management.
• Heating Boost: Quickly increase warmth for up to six hours when needed.
• Holiday Mode: Maintain energy savings while away and return to a warm home.
• Automatic Frost Protection: Helps prevent frozen pipes in cold weather.
• Seamless Installation: Simple setup with Wi-Fi connectivity and combi boiler compatibility.

We recently installed the Hive Thermostat and were impressed by how intuitive it is to use. The Hive app makes temperature control effortless, whether adjusting schedules or activating heating remotely.

The geolocation feature ensures energy isn’t wasted when we’re out, and the voice control integration adds an extra layer of convenience. Installation was straightforward, with clear instructions and minimal wiring.

The thermostat connects reliably through the Hive Hub, maintaining a stable connection for remote adjustments. Its sleek design blends seamlessly with any home decor, adding a modern touch to the space.

With its smart scheduling, energy efficiency, and user-friendly controls, the Hive Thermostat has significantly improved our home’s heating management. It’s an excellent choice for anyone looking to upgrade to a more convenient and cost-effective heating solution.

Easy To Use Smart Thermostat Pick

Honeywell T6R Wireless Smart Thermostat

The Honeywell T6R Wireless Smart Thermostat is a solid choice for anyone looking for a smart, intuitive way to manage home heating. We tested it in a typical home setup and found it easy to install and simple to operate.

Key Features

• Touchscreen Interface: Large, clear display for easy adjustments and scheduling. Temperature changes in 0.5-degree increments.
• Smartphone Control: Adjust heating schedules remotely via the Honeywell Home app.
• Geofencing Technology: Automatically adjusts temperature based on home or away status.
• Flexible Scheduling: 7-day, 5/2-day, or single-day scheduling with up to six time settings.
• Smart Home Compatible: Works with Apple HomeKit, Google Home, and IFTTT.
• Energy Efficiency: Optimised heating reduces energy waste.
• Wireless Setup: Freestanding design allows flexible placement with a power source.

The Honeywell T6R Wireless Smart Thermostat is an excellent choice for smart home heating. We found it incredibly intuitive, adapting to heating patterns for consistent comfort. The smart controls work seamlessly with Apple HomeKit and Alexa, making voice adjustments effortless.

Its touchscreen interface is crisp and user-friendly while geofencing technology ensures the temperature adjusts automatically when we leave or return. The flexible scheduling options (7-day, 5/2-day, or single-day) provide plenty of customisation.

Plus, the energy-efficient design helps reduce unnecessary heating. The only downside is the need for a power outlet, which slightly limits placement flexibility.

However, considering its versatile wireless setup and feature-packed performance, this is a standout thermostat that makes home heating simpler and smarter. If you’re looking for a reliable, high-tech solution that blends convenience with efficiency, the T6R is a fantastic investment.

Most Precise Smart Thermostat Pick

Bosch Smart Home Room Thermostat II for Wired Heating Systems

The Bosch Smart Home Room Thermostat II is a versatile and precise heating control solution for wired systems and underfloor heating. It offers smart temperature regulation, real-time humidity monitoring, and seamless integration with Bosch’s ecosystem.

Key Features

• Simple Setup: Easily connects to the Bosch Smart Home system and syncs with radiator thermostats.
• Multiple Control Options: Adjust settings on the device via the Bosch app or with Alexa and Google Assistant.
• Accurate Temperature Readings: The LED display shows real-time room temperature and heating status.
• Smart Energy Management: Customise heating schedules and pause heating to improve efficiency and save energy.
• Humidity Monitoring: Tracks relative humidity with visual alerts for high or low levels.
• Cooling Mode: Regulates indoor temperature in summer via hydronic underfloor heating systems.

The Bosch Smart Home Room Thermostat II impressed us with its seamless integration and precise temperature control.

Setting it up was effortless, and once connected to the Bosch Smart Home system, it allowed us to control multiple radiator thermostats centrally—making home heating smarter and more efficient.

We loved its real-time temperature readings, easy adjustments (manual, app-based, or voice-controlled), and intelligent humidity monitoring, which provides quick alerts when levels fluctuate. The smart scheduling feature helped us optimise energy use, ensuring comfort without wasting heat.

There were minor drawbacks—wall stability could be improved, and a Bosch Smart Home Controller is required for full functionality. However, once installed securely, the thermostat performed exceptionally well.

Overall, this is a fantastic choice for those looking to enhance their home heating with smart, reliable, and energy-efficient controls. If you're already in the Bosch ecosystem, it’s a must-have upgrade.

One To Avoid

MOES WiFi Thermostat Programmable Room Temperature Controller

The MOES WiFi Thermostat looked promising with its modern, bezel-less design and compatibility with Alexa and Google Home. The interface is sleek, and the Tuya/Smart Life app allows remote control, making adjustments convenient—when it works. Unfortunately, that’s where the positives end.

The thermostat suffers from serious reliability issues. Wi-Fi connectivity is unstable, making remote control frustrating. Worse, it frequently switches between manual and programmed modes on its own, disrupting heating schedules.

The display is another major flaw, with fading numbers and broken screens appearing after just a few months. Installation isn’t straightforward either, as the instructions are unclear and overly complicated, professional installation is recommended.

Durability is one of the biggest letdowns. Many units from other customers fail within a year, making it clear that long-term reliability is not a strength of this device. While the smart home integration and app features sound great on paper, they don’t hold up when the hardware itself is unreliable.

For a thermostat that’s meant to make life easier, this one does the opposite. Frequent malfunctions, poor durability, and frustrating connectivity issues make the MOES WiFi Thermostat one to avoid. There are far better options available that won’t leave you dealing with unnecessary headaches.

How We Tested and Chose the Best Smart Thermostats on the Market

Finding the best smart thermostat isn't just about setting temperatures and calling it a day. We conducted a thorough evaluation to determine which models truly deliver on performance, ease of use, and energy efficiency. Here’s how we tested them.

Installation & Setup

A smart thermostat should be easy to install, whether by a professional or as a DIY project. We assessed how simple the installation process was, checking if the instructions were clear and whether additional wiring or adapters were needed.

Compatibility was another crucial factor—we tested each thermostat with different central heating systems, including combi boilers, heat pumps, and electric heaters.

Connectivity was also put to the test, ensuring that each model could quickly and reliably link to Wi-Fi, Bluetooth, or Zigbee without frequent dropouts.

App & Smart Home Integration

A well-designed app is essential for remote control and automation. We evaluated each thermostat’s app for responsiveness, user-friendliness, and the availability of key features such as scheduling, geofencing, and temperature adjustments. Smart home integration was another important aspect.

We tested how well each device worked with voice assistants like Alexa, Google Home, and Apple HomeKit. Additionally, we looked at automation capabilities, ensuring that the thermostat could adapt to daily routines and integrate with other smart home devices like lights and motion sensors.

Temperature Accuracy & Response Time

To determine how well each thermostat controlled home heating, we adjusted settings and measured response times. We used external thermometers to verify accuracy, ensuring that each device could maintain a consistent temperature within a ±0.5°C margin.

Multi-zone heating performance was also assessed, checking whether thermostats could effectively control temperatures in different rooms independently when paired with smart radiator valves.

Energy Efficiency & Cost Savings

A smart thermostat should help reduce energy bills without sacrificing comfort. We analysed the energy reports provided by each model to determine how accurately they tracked consumption.

Geofencing was tested to see if the system reliably turned off the heating when no one was home and resumed when users returned. We also monitored whether pre-set schedules matched real heating needs, ensuring that energy wasn’t wasted on unnecessary heating cycles.

Design & Build Quality

A thermostat should blend seamlessly into a home while remaining functional. We assessed display readability, testing visibility in different lighting conditions. Durability was another key factor—we checked whether materials felt sturdy and resistant to wear over time.

If physical controls were present, we tested button and touch sensitivity to ensure they were intuitive and responsive.

Advanced Features & User Experience

Many high-end thermostats come with extra features that enhance usability. We tested weather adaptation capabilities, checking whether heating adjusted based on real-time weather conditions.

Open window detection was evaluated by simulating a sudden temperature drop to see if the thermostat paused heating automatically. Voice control efficiency was another area of focus, ensuring that commands were recognised and executed promptly.

Connectivity & Long-Term Reliability

To test reliability over time, we monitored app performance, looking for any crashes, lag, or synchronisation issues. Offline functionality was also tested to see if the thermostat retained programmed schedules without an internet connection.

Additionally, we reviewed firmware update frequency and the responsiveness of customer support to determine long-term usability.

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Frequently Asked Questions

Should I Switch to a Smart Thermostat?

Switching to a smart thermostat is a great decision for those looking to improve energy efficiency and convenience. A smart thermostat allows for remote control, automated scheduling, and learning capabilities, helping to optimise home heating.

It also reduces energy waste by adjusting temperatures based on occupancy and preferences.

Is It Worth Getting a Smart Thermostat in the UK?

It is worth getting a smart thermostat in the UK, as it helps homeowners save on energy bills while enhancing comfort.

With features like app control, geofencing, and smart home integration, a smart thermostat provides better heating management, reducing unnecessary energy consumption and improving overall efficiency in response to unpredictable UK weather.

Can a Smart Thermostat Replace Any Thermostat?

A smart thermostat can replace most traditional thermostats, but compatibility depends on the existing heating system. Many models work with gas, electric, and heat pump systems, but some may require additional wiring or adapters.

Before switching, it’s important to check if the thermostat is compatible with the current setup.

Do Smart Thermostats Lower Electric Bill?

Smart thermostats help lower electric bills and heating bills by optimising heating schedules and reducing energy waste. Features like geofencing, learning algorithms, and remote access allow users to heat their homes more efficiently, ensuring energy is only used when needed.

Over time, this leads to noticeable savings in heating costs.

Where Is the Best Place for a Thermostat in a House in the UK?

The best place for a thermostat in a UK home is in a central location, away from direct sunlight, radiators, or draughts. Ideally, it should be placed at eye level in a frequently used room, such as the living room or hallway, to provide an accurate reading of household temperature.

What is the Main Benefit of the Smart Thermostat?

The main benefit of most smart thermostats is its ability to improve energy efficiency while offering greater convenience.

By automatically adjusting temperatures based on occupancy and schedules, it reduces energy waste, enhances comfort, and allows users to control heating remotely, leading to cost savings and a more eco-friendly home.

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Final Word

Hopefully, our Best Smart Thermostat UK guide has helped you find the right model for your home. With so many great choices, picking the best one isn’t easy, but for us, one stands out.

Our top pick is the Tado° Wireless Smart Thermostat X, offering intuitive app control, energy-saving automation, and seamless smart home compatibility. If you prefer AI-driven adjustments, the Google Nest Thermostat (4th Gen, 2024) is a great choice.

For budget-conscious buyers, the Hive Smart Thermostat for Heating (Combi Boiler) provides affordable, smart heating control. Not all thermostats deliver, though. The MOES WiFi Thermostat struggled with connectivity, reliability, and durability, making it one to avoid.

Are you ready to upgrade your heating, or still deciding? We’d love to hear your thoughts—drop us a comment below!