Best Siri Smart Thermostats of 2025

The tado° Smart Radiator Thermostat offers you smart control over your heating, allowing you to manage your radiators from anywhere using your smartphone or smart speaker. You can set your desired temperatures easily, ranging from 19 to 25°C. The tado° app enhances your experience with features like Open Window Detection, which saves energy by automatically adjusting when windows are open. Additionally, Smart Schedules let you tailor heating to fit your lifestyle, ensuring comfort while saving on energy costs.

The tado° Smart Thermostat offers you full control over your heating from anywhere via the tado° app. You can enjoy a Heating Boost feature that allows you to quickly warm up all rooms for 30 minutes with just one click. The Smart Schedules feature helps you maintain the perfect temperature in each room at any time, ensuring heating is only active when someone is home. Additionally, if the app detects an open window or no one is home, it will remind you to lower the heating, helping you save energy and money.

The tado° Smart Thermostat X offers an efficient way to manage your heating, helping you save an average of 22% on energy costs. Its easy DIY installation means you can set it up without fuss, fitting it to almost any radiator valve. You can control your heating effortlessly through the app, allowing for smart scheduling and geofencing features that adapt to your lifestyle. With compatibility for voice assistants like Alexa and Siri, adjusting the temperature in each room becomes incredibly convenient.

The tado° Wired Thermostat allows you to save energy while enjoying full control over your home heating. With its smart heating technology, you can easily manage your heating from anywhere using the intuitive app. The Open Window Detection feature automatically adjusts the temperature when it senses an open window, preventing energy waste. Additionally, the Smart Schedules feature lets you programme your heating according to your daily routine, ensuring warmth when you need it most. With Advanced Geofencing, you can preheat your home before you arrive, adding convenience to your lifestyle.

The Meross Smart Thermostat allows you to save energy with its smart control features. You can effortlessly manage your home heating through voice commands or the app, ensuring your space is always at your preferred temperature. The dual temperature sensors provide accurate readings by monitoring both indoor and outdoor temperatures, preventing overheating. With a multi-room function, you can efficiently control different areas of your home, and if a window is opened, the thermostat will pause heating to avoid unnecessary energy waste.

The tado° Smart Thermostat X offers an impressive way to save energy and reduce heating costs, with users typically saving around 22% by managing multiple rooms. Its easy DIY installation means you can fit it to almost any radiator valve without hassle. You can control your heating through the app, which features smart scheduling and an open-window sensor, enhancing convenience and efficiency. Furthermore, with compatibility for smart speakers like Alexa and Google Assistant, adjusting the temperature in your home becomes seamless and intuitive.

The Refoss Smart Thermostat offers advanced control for your heating system, allowing you to manage your home's temperature remotely via the free Refoss app or through voice commands with Siri, Alexa, or Google Home. The open window detection function helps you save energy by automatically shutting off heating when a window is open, reducing your electricity bills. With dual temperature sensors, you can ensure optimal comfort by accurately sensing both air and floor temperatures. Additionally, the scheduling feature allows you to set up to eight events daily, ensuring your heating adjusts to your routine seamlessly.

The tado° Smart Radiator Thermostat offers an effective solution for managing multiple rooms' temperatures through a single app. You can add additional Smart Radiator Thermostats to your setup, allowing you to control each radiator and zone individually. This feature maximises your comfort and helps save on energy costs. It fits most radiators and can be installed either vertically or horizontally, ensuring a convenient fit for your home. However, it requires a tado° Starter Kit (V2, V3, V3+) for operation, which is sold separately.

The tado° Smart Thermostat allows you to control multiple radiators and heating zones individually through a single app, enhancing your comfort and energy efficiency. You can effortlessly manage the temperature in all rooms, ensuring a personalised environment. With various adapters included, it fits most radiators and can be mounted in different orientations. The device requires a tado° Starter Kit to function, making it an ideal add-on for those looking to optimise their heating system.

The Sensibo Air PRO is a smart AC controller that includes an air quality sensor, ensuring your home maintains an ideal temperature while monitoring air quality. This feature allows you to create a healthier living environment by detecting unhealthy air conditions. It also helps reduce cooling costs by optimising your air conditioning, potentially lowering bills by up to 40%. With its smart features like geofencing, the device activates your air conditioning when you arrive home, ensuring comfort without wasting energy.