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Best Siri Thermostats of 2026

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Corey Phillips

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Siri Thermostats are a range of smart home temperature control devices that utilise voice-activated technology to create a more comfortable and energy-efficient living environment. These thermostats are compatible with Apple's Siri voice assistant and can be controlled through an app on your smartphone, tablet or computer. With Siri Thermostats, you can easily adjust the temperature of your home, even when you are away, reducing energy waste and saving you money on your energy bills. The sleek design and intuitive controls make these thermostats a great addition to any home.

At a Glance: Our Top Picks

Top 10 Siri Thermostats

tado° Wireless Smart Thermostat V3+ Starter Kit

  • tado
  • V3P-SK-WTS01WRP01IB01-TC-UK
  • White
tado° Wireless Smart Thermostat V3+ Starter Kit Cover

tado° Starter Kit - Wireless Smart Thermostat V3+ Incl. Programmer with Hot Water Control, Designed in Germany, Works with Alexa, Siri & Google Assistant (White)

The tado° Thermostat V3+ offers full control over your heating via the intuitive tado° app, allowing you to adjust temperatures from anywhere and reduce energy use, saving you money. The Heating Boost feature quickly warms all rooms for 30 minutes with a single tap, perfect for when you need immediate comfort. Smart Schedules let you set the ideal temperature in each room at any time, activating only when someone is home, so you avoid wasting energy. Plus, if the app detects no one is home or an open window, it sends reminders to turn down the heating, helping you stay efficient and in control.

9.9
FTB Score

What We Like

  • Remote heating control
  • Quick 30-minute heat boost
  • Customisable room schedules
  • Energy-saving notifications
#TOP 2

tado° Smart Radiator Thermostat 3-Pack for Energy Savings

tado° Smart Radiator Thermostat 3-Pack for Energy Savings Cover

tado° Smart Radiator Thermostat 3-Pack - Wifi Add-on thermostat for digital Multi-Room Control - easy installation - save heating costs - works with Alexa, Siri & Google Assistant

The tado° Smart Radiator Thermostat offers a practical solution for maximising energy savings in your home. By controlling multiple radiators and rooms, you can tailor your heating to your lifestyle, ensuring comfort while reducing costs. With easy installation, you can set up the thermostats yourself with just a few simple steps. The thermostats are compatible with most radiator valves, making them a versatile addition to your home heating system. Plus, the ability to create smart schedules allows you to efficiently manage heating according to your routine.

9.8
FTB Score

What We Like

  • Energy-saving capabilities
  • Easy installation process
  • Individual room control
  • Compatible with various radiator valves
  • Smart scheduling options
#TOP 3

Refoss Smart Thermostat for Heating Control

Refoss Smart Thermostat for Heating Control Cover

Refoss Smart Thermostat for Combi Boiler/Water Underfloor Heating, WiFi Thermostat Works with Apple HomeKit Siri, Alexa, Google Home, Support Programmer No Hub Required

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.

9.6
FTB Score

What We Like

  • Remote temperature control
  • Energy-saving open window detection
  • Accurate dual temperature sensors
  • Customisable scheduling options
  • Compatible with smart home devices

tado Smart Thermostat X Wired Room Control

  • tado
  • VX-ST02-AZ-ML-00
  • Black/White
tado Smart Thermostat X Wired Room Control Cover

tado Smart Thermostat X – Add-on as Wired Room Thermostat, Heating Control via App & Smart Speaker (Alexa, Siri, Google Assistant), DIY Installation

The tado Thermostat X offers smart heating control that helps you save energy, with an average reduction of 22 percent when using the extra battery set. It is easy to install yourself, even without an internet connection, and works with various heating systems like gas boilers, heat pumps, and underfloor heating. You can control your heating conveniently via the app, allowing you to set schedules and adjust temperatures from anywhere. Additionally, it integrates seamlessly with smart speakers like Alexa, Google Assistant, and Siri, enabling voice control for each room’s temperature.

9.5
FTB Score

What We Like

  • Energy-saving up to 22%
  • Easy DIY installation
  • App-based heating control
  • Compatible with smart speakers
#TOP 5

tado° Smart Radiator Thermostat X with App Control

  • tado
  • VX-SRT02-AZ-ML-00
  • White
tado° Smart Radiator Thermostat X with App Control Cover

tado° Smart Radiator Thermostat X, Temperature Control via App and Smart Speaker (Alexa, Siri, Google Assistant), Save Heating Costs, DIY Installation

The tado° Smart Thermostat X allows you to save an average of 22% on energy costs, making it a smart investment for your home. With easy DIY installation, you can fit it to almost any radiator valve, ensuring a secure and leak-free setup. The app gives you full control over your heating system, enabling smart scheduling and geofencing to adjust temperatures based on your location. You can also enjoy the convenience of voice control through smart speakers like Alexa, Google Assistant, or Siri.

9.4
FTB Score

What We Like

  • Saves energy and costs
  • Easy DIY installation
  • Control via app
  • Voice control compatible
#TOP 6

tado° Wireless Smart Thermostat X Starter Kit

  • tado
  • VX-WTS02-WRP02-STAND-AZ-UK-00
  • Black
tado° Wireless Smart Thermostat X Starter Kit Cover

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)

The tado° Smart Thermostat X offers a convenient way to control your heating and hot water from anywhere. With its wireless connectivity, you can easily adjust settings via the app, ensuring your home is always at the perfect temperature. The compatibility with smart speakers like Alexa, Siri, and Google Assistant allows for hands-free operation, making it even more user-friendly. Additionally, the included stand means you can place the thermostat wherever it suits you best, enhancing both functionality and ease of use.

9.2
FTB Score

What We Like

  • Wireless heating control
  • Smart speaker compatibility
  • Convenient app management
  • Flexible placement with stand
#TOP 7

tado° Smart Radiator Thermostat X Trio Pack

  • tado
  • VX-3SRT02-AZ-ML-00
  • White
tado° Smart Radiator Thermostat X Trio Pack Cover

tado° Smart Radiator Thermostat X – Trio Pack, Heating Control via App and Smart Speaker (Alexa, Siri, Google Assistant), Save Heating Costs, DIY Installation

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.

9.1
FTB Score

What We Like

  • Saves energy and costs
  • Easy DIY installation
  • App control and scheduling
  • Voice assistant compatibility
  • Intuitive touch display
#TOP 8

tado° Wired Smart Thermostat V3+ Control Heating

tado° Wired Smart Thermostat V3+ Control Heating Cover

tado° Wired Smart Thermostat Starter Kit V3+ The Smart Thermostat Gives You Full Control Over Your Heating From Anywhere, Save Energy, Easy DIY Installation, Works With Amazon Alexa, Siri, and Google

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.

8.9
FTB Score

What We Like

  • Energy-saving technology
  • User-friendly smartphone app
  • Automatic temperature adjustments
  • Preheating before arrival
  • Compatible with various systems
#TOP 9

tado° Smart Radiator Thermostat WiFi Control

tado° Smart Radiator Thermostat WiFi Control Cover

tado° Smart Radiator Thermostat 3-Pack - WiFi Add-On Thermostat for Digital Multi-Room Control- Works with Alexa, Siri & Google Assistant & Wired Smart Thermostat Starter Kit V3+

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.

8.7
FTB Score

What We Like

  • Individual room control
  • Energy-saving features
  • Easy app management
  • Quick heating boost
#TOP 10

HOMEPILOT Premium Smart Wall Thermostat

  • HOMEPILOT
  • 13501001
  • White
  • 50 x 50 mm
HOMEPILOT Premium Smart Wall Thermostat Cover

HOMEPILOT - Premium Smart Wall Thermostat with Radio, e.g. for Underfloor Heating, Flush-Mounted 230 V, Smart Home Heating Control (App, Alexa, Siri & Google Assistant) possible via Gateway

The HOMEPILOT Smart Thermostat is a versatile device that enhances your home’s heating and cooling systems. It allows you to control almost any radiator or underfloor heating, ensuring precise temperature regulation and energy efficiency. You can programme your schedules easily, making it convenient to adjust your heating according to your daily routine. Additionally, voice control compatibility with Alexa, Google Assistant, and Siri means you can change the temperature without lifting a finger, adding a modern touch to your home comfort.

8.5
FTB Score

What We Like

  • Precise temperature control
  • Energy efficient
  • Easy scheduling
  • Voice control compatible

Editor's Notes

During our siri thermostat research, we found 17 siri thermostat products and shortlisted 10 quality products. We collected and analyzed 82,156 customer reviews through our big data system to write the siri thermostats list. We found that most customers choose siri thermostats with an average price of £138.84.

The siri thermostats are available for purchase. We have researched hundreds of brands and picked the top brands of siri thermostats, including tado, Refoss, HOMEPILOT.

Written by

Corey Phillips Avatar

Corey Phillips

Corey Philips is an electrician and lighting expert. He graduated from the University of Birmingham in 2012 with a Bachelor's degree in electrical and electronics engineering. Corey is a specialist contractor in lights. He sells and installs and recommends lights and lamp sheds, and other lights accessories. Aside from that, Corey is vast in installing and maintaining electrical appliances like air conditioners, water heaters, and the likes.