Best Battery Smart Thermostats of 2025

The Honeywell T3 Thermostat offers impressive versatility and compatibility, making it suitable for various heating systems like combi boilers and heat pumps. With intuitive 7-day scheduling, you can programme up to six time slots per day, ensuring your home stays comfortable when you need it. Its modern, minimalistic design features a large backlit screen for easy operation and quick access to your settings. Additionally, smart home integration allows you to control your heating effortlessly, enhancing your overall convenience and comfort.

The Drayton Wiser Thermostat is a smart heating control kit that includes a Heat HubR and a user-friendly room thermostat, allowing you to manage your heating from your phone. It is designed for easy installation onto UK standard wallplates and works seamlessly with combination boilers. With voice control compatibility through Amazon Alexa, you can adjust your heating effortlessly using voice commands. Additionally, the Wiser app provides a comprehensive Heat Report, helping you monitor your system and optimise energy efficiency.

The Jayruit Smart Thermostat offers a modern touch to your home with its classic design and intuitive touch buttons. You can enjoy hands-free temperature adjustments through seamless voice control with popular voice assistants. The thermostat also allows for remote control via the Smart Life/Tuya app, so you can manage your home's temperature from anywhere. Additionally, with flexible weekly programmability, you can tailor a personalised temperature schedule to match your lifestyle, ensuring comfort when you need it most.

The ENGO E20i Thermostat allows you to control your home's heating from anywhere using the ENGO Smart app or through voice commands with Amazon Alexa and Google Assistant. This wireless thermostat is battery powered and can be mounted away from heat sources or sunlight for optimal performance. With a reliable 2.4 GHz WiFi connection built into the receiver, you won’t need an additional gateway hub. You can set schedules and manage your energy use, helping you save on heating costs while ensuring your home stays comfortable.

The RANRAO Smart Thermostat allows you to control your home's temperature from anywhere using your smartphone. Its versatile programming options let you personalise your heating schedule with up to six time slots on weekdays and two on weekends. You can enjoy precise temperature control, adjusting settings between 15°C and 95°C for your comfort. Additionally, its battery-powered design ensures easy installation without complicated wiring, conserving energy by turning off the display when not in use.

The Feegow Thermostat Mini is a smart digital room thermostat designed for efficient heating. It features a clear LCD display, allowing you to easily monitor and control your room temperature. You can programme it for 5+2 weeks, giving you the flexibility to set temperatures that suit your daily schedule. With its child lock feature, you can prevent accidental changes, making it safe for households with children. Additionally, the antifreeze function protects your space from freezing temperatures, ensuring comfort even in cold weather.

The Drayton Wiser Thermostat offers a wireless design, allowing you to place it anywhere with its handy table stand or wall clip. You can programme it conveniently through the app, making temperature control seamless. Battery-operated, it eliminates the hassle of wires, and it is compatible with Echo devices for voice control. The device features three capacitive touch buttons, enabling quick adjustments to the temperature and a boost function for instant warmth when needed.

The RANRAO Smart Thermostat features a stylish design with touch buttons, making it easy for you to control your home's temperature effortlessly. Being battery-powered means you can install it anywhere without worrying about wiring. With the Smart Life/TUYA app, you can adjust the thermostat remotely from anywhere, whether you are at work or relaxing at home. The thermostat also supports voice commands through popular assistants, allowing for true hands-free operation for added convenience.

The Emiif Smart Thermostat is designed for controlling gas boilers, helping you manage your home's temperature effectively. Its digital display ensures you can easily read the current temperature at a glance. With its 5+2 weeks programmable function, you can set different heating schedules for weekdays and weekends, making it convenient for your lifestyle. Moreover, the easy installation allows for flexibility in placement, while the built-in safety features, like a lock, provide peace of mind, especially in homes with young children.

The tado° Smart Radiator Thermostat helps you save energy and money by allowing you to control multiple radiators and rooms individually. This add-on feature lets you set smart schedules tailored to your routine, enhancing comfort and efficiency. It is compatible with a wide range of existing thermostatic radiator valve heads, making installation straightforward. With easy installation instructions provided in the app, you can set it up in minutes without any risk of leakage.