Smart Radiator Thermostat X
World's smartest thermostat & app
How will you benefit?
Energy savings of 22%¹ for life
Self-installed in 5 minutes
tado° AI Assist ready
10-year warranty*
10-year warranty. Built to last.
Engineered in Germany since 2011, our Smart Radiator Thermostat boasts 50,000+ hours of testing. With durable nickel-plating and ABS materials. Enjoy its ultra compact design and silent operation.
One charge lasts all season
Equipped with a rechargeable lithium-ion battery you can rely on with 2-hour USB-C fast charging and tested for 12+ months of battery life. This produces 95% less waste and emissions than single-use batteries.
Self-install in 5 minutes
Compatible with 95% of heating systems in Europe, the easy, app-guided offline installation presents no risk of water leakage. Our customers rate their installation experience 4.6/5.0.
Seamless temperature adjustments
Shows the accurate room temperature in °C on a high-resolution touch display. You can adjust the temperature manually with the click wheel or activate the child lock for safety.
tado° runs natively with
Heating at your fingertips.
The free version of our app comes with every tado° product and is packed with handy features to control and schedule your heating.
Control remotely. Wherever you are.
With the tado° app, you can control each room’s temperature from anywhere at any time, whether you are at home, work, or on holiday. Quick Actions let you switch everything off at once or boost warmth instantly.
Comfort. Right when you want it.
With just two clicks, you can create personalised heating schedules for each room, according to your daily routines. Stored on the device, the offline schedule even works without an internet connection.
Boost savings and comfort with tado° AI Assist de tado°
Smart automations and dashboards. Only with a tado° AI Assist subscription of €3.99 per month.
Adaptive Heating
Learns room characteristics and patterns
Adaptive Heating
tado° AI learns the unique heating patterns for each of your rooms, optimising your energy consumption and enhancing your comfort — while you stay in control.
This feature is available in combination with the Smart Radiator Thermostat X.
Geofencing
Never heat an empty home
Geofencing
Using your phone’s location, tado° turns off the heating when no one’s home.
Pre-heating before arrival
Always return to a cozy home
Pre-heating before arrival
With predictive AI, tado° will warm up your home again just before you get back.
Energy IQ & smart reports
Real-time insights on consumption and cost
Energy IQ & smart reports
Powered by tado° AI, you'll get real-time insight into your energy usage and costs. You can also see how the temperature and humidity levels have fluctuated over time.
Advanced Open Window-Detection
Don't heat the street
Advanced Open Window-Detection
tado° detects open windows without requiring additional sensors, automatically pausing your heating to avoid wasting energy.
Air-quality optimisation
Monitor & improve your indoor climate
Air quality optimisation
tado° helps you to achieve a healthier indoor climate, with insights and specific advice, e.g. when you should open the windows, or if a room is at risk of developing mould.
Care & Protect fault detection
Fix heating issues before they escalate
Care & Protect fault detection
This function monitors your heating system, notifies you if unusual heating behaviour is detected and helps you to solve issues with easy step-by-step guides.
Holiday Mode
Relax, tado° handles your heating.
Holiday Mode
Holiday Mode turns off your heating when you go on holiday and automatically switches it back on in time for your return.
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Save up to
more energy than with the tado° basic app.²
Save up to
a year in heating costs with smart optimisations.³
Save up to
in CO₂ a year, reducing your carbon footprint.⁴
Your heating. Your home. Just better.
With Smart Thermostats and the AI-powered tado° App.
No more worries about heating costs
The perfect temperature when you get home
Save 22% in energy and Co2 with tado°
Europe’s #1 for smart heating.
Pioneers since 2011, creating solutions for you.
Leading app
With years of top ratings from 36,000+ reviews in the App Store.
#1 for smart heating
According to European expert magazines and testing bodies.
Save up to 28% in energy a year
According to the Fraunhofer Institute of Building Physics.⁵
Leading German engineering
Attractive, timeless and robust. Built to last.
5,000,000 devices installed
And 2.3 millions tons of Co2 saved
Works with 95% of systems
Across European energy management and heating brands
Exclusive Panasonic partner
For smart heating and heat pump management
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Upgrade to fully connected heating
Whether you have radiators, underfloor heating, a boiler, a heat pump, or any combination of these, tado° adapts to your unique setup — offering you complete control and maximum efficiency.
Smart Radiator Thermostat X
Equip additional radiators in your home.
Wireless Temperature Sensor
Measure the temperature in the right place.
Smart Thermostat X
Control your boiler or underfloor heating.
Heat Pump Optimizer X
Connect your heat pump for maximum efficiency.
Dynamic tariff integration
Use electricity when it is cheapest.
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All your questions answered.
How does the Smart Radiator Thermostat X work?
Smart Radiator Thermostats from the X line replace your existing radiator valves. If you opt for a Starter Kit, you also get a Bridge X, which connects all your tado° X devices to the internet and allows you to control your heating using the tado° app. You only need one Bridge X per home, but you can add more as signal amplifiers.
Are my radiators compatible with tado°?
You can find out whether the tado° Smart Radiator Thermostat X is compatible with your radiators in just a few seconds using our compatibility checker. In general, tado° is compatible with almost all manufacturers. Each pack contains six adapters for a variety of valve types.
Can I install the Smart Radiator Thermostat by myself?
You can install it yourself in just a few minutes. The app guides you step by step, and is customised to your radiator model. There's no risk of water leaks. And even if you're offline, you can still install tado°.
Do I need batteries for the Smart Radiator Thermostat X?
The Smart Radiator Thermostat X is equipped with a rechargeable battery. This means you don't need to replace any batteries. Simply remove the rechargeable battery and charge it with a USB-C cable. This only takes about 2 hours and only needs to be done about once a year.
Is there a warranty?
Yes. We offer a warranty of 10 years on all tado° X devices. Terms & conditions apply.
Can I add more Smart Radiator Thermostats to my Starter Kit?
tado° is designed to work with any heating system. This means you can add as many additional Smart Thermostats, Smart Radiator Thermostats or Accessories to your Starter Kit as you like.
I'm buying tado° for the first time. Do I need a Bridge X?
If you already have a Thread border router in your home, you won’t need a Bridge X. If not, you can either order a separate one at the tado° webshop, or buy it as part of a Starter Kit with your Smart Radiator Thermostat X.
Please note that the Internet Bridge from the V3+ series is not compatible with tado° X.
What is tado° AI Assist?
AI Assist makes your heating even smarter and more efficient. It adds a set of AI-powered smart features to your heating control system, saving you up to 55% more energy. AI Assist is an optional subscription available in the app for €3.99 per month or €29.99 per year.
What happens if I'm offline?
You can still install tado° if you’re offline. What’s more, Smart Schedules will continue to run even when you’re not connected to the internet because they are saved locally on the device.
*Terms & conditions apply. Learn more.
¹Based on internal data averaged across all tado° customers, collected up to 30/11/2023.
²Up to 55% more savings is based on internal modelling comparing the use of tado° AI Assist vs the free tado° app. Actual savings depend on household characteristics, usage patterns and external factors.
³Actual savings depend on household energy use and may vary. €485 annual savings reflect 22% of the EU average gas heating bill (€2,208) as reported by Eurostat for 2024, based on our user base average. Results may differ.
⁴Actual savings depend on household energy use and regional factors. CO₂ savings are based on an average EU household gas heating consumption of approximately 20,000 kWh per year and an emission factor of 0.18 kg CO₂/kWh for natural gas combustion, resulting in estimated savings of up to 790 kg CO₂ annually for a 22% reduction. Data based on Eurostat Natural Gas Price Statistics 2024 and European Heat Pump Association reports. Individual results may vary.
⁵Based on the Fraunhofer Institute for Building Physics Study: "Dynamic simulation study to compare the energy demand of selected, typical homes with heating control with weather forecast and absence detection versus conventional heating control", 2022 (EER-021/2022/720).