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tado Smart Radiator Thermostat X Review: Smarter room heating, lower energy use

Tado Smart Radiator Thermostat X, Temperature Control via App and Smart Speaker (Alexa, Siri, Google Assistant), Save Heating Costs, DIY Installation, Not Compatible with tado V3+
4.8
[Save Energy]  Intelligent thermostat saves an average 22% on energy and heating costs.
[AI-Powered Savings]  AI Assist automations boost savings up to 55% with optional subscription.
[Easy DIY Installation]  Included adapter and metal nut fit most radiator valves for secure offline installation.
[App & Voice Control]  Set schedules and temperatures via app, Amazon Alexa, Google Assistant, or Siri.
[Intuitive Touch Display]  Touchscreen control and USB-C rechargeable battery charges in two hours; lasts one season.
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Home heating control that aims to cut energy waste while giving precise room-by-room temperature management. Perfect for households that want fewer fiddly radiator adjustments and steadier comfort. Is tado Smart Radiator Thermostat X the sensible upgrade for a smarter, more efficient home?

⚡ At a Glance
  • Temperature Control: Room-by-room setpoints with smart scheduling and a touchscreen
  • Best for: Homeowners who want measurable energy savings and room zoning
  • Not ideal for: Homes already running tado V3+ or older systems

Smart radiator thermostat with app control, touch display and removable battery. Supports voice control and modern smart home protocols, subject to an optional Bridge X for some features.


Lower heating use and running costs - with intelligent scheduling and AI Assist

Smart scheduling learns routines and combines automations such as geofencing and open window detection to reduce unnecessary heating. AI Assist applies additional automations to adapt setpoints and behaviours based on occupancy patterns.

Users can expect reduced energy consumption through targeted heating, with average savings quoted from tado when multiple rooms are controlled. Optional AI Assist automations increase savings further for households that opt in.

Straightforward fitting - with a universal adapter and secure metal nut

Included adapter fits almost every common radiator valve and a supplied metal nut locks the unit in place to prevent leaks when used with the additional template. Installation can be completed offline, making a simple DIY upgrade.

A quick, tool-light installation suits landlords or homeowners who prefer to fit devices themselves. Secure fastening and widespread valve compatibility minimise the chance of return visits or adjustments.

Seamless control across apps and voice - thanks to app integration and smart home protocols

Temperature control and scheduling are available through a dedicated smartphone app, while voice commands work with Alexa, Google Assistant and Apple Siri. Matter and Thread compatibility enable broader smart home interactions when paired with a Bridge X or another Thread border router.

Rooms can be adjusted from a phone or with voice, making day-to-day heating management effortless. Integration with modern protocols prepares homes to link radiators into wider automation scenes when a compatible bridge is present.

✨ The 4 Key Reasons for tado Smart Radiator Thermostat X
  1. Energy savings quoted - Reduced consumption through scheduling and automation across rooms
  2. Universal adapter - Fits most radiator valves for quick DIY installation
  3. App and voice control - Set temperatures remotely and use Alexa, Google or Siri
  4. Matter and Thread ready - Connects with broader smart home systems when bridged
📋 Technical Details at a Glance
  • Category: Home Improvement
  • Model: Smart Radiator Thermostat X
  • Display: Touch display for direct adjustment
  • Battery: Removable rechargeable battery
  • Charging: USB-C, fully charged in around 2 hours
❓ Frequently Asked Questions

Q: Is the thermostat compatible with older tado systems such as V3+?

A: No, tado X products are not compatible with tado V3+ or older systems, so pairing with earlier hubs is not supported.

Q: How easy is installation for a typical radiator valve?

A: The included universal adapter fits almost every radiator valve and a metal nut secures the unit, enabling a straightforward DIY fit even without a network connection during installation.

Q: Can the thermostat be controlled with voice assistants and smart home systems?

A: Yes, temperature can be set via Alexa, Google Assistant and Apple Siri, and Matter and Thread compatibility is available when using a Bridge X or another Thread border router.

🏆 Our Verdict

Suitable for households that want to zone heating and reduce energy waste without professional installation. The combination of app control, universal fitting hardware and optional AI Assist automations makes targeted temperature control simple and effective. Upfront effort to fit units across the home is repaid over time through lower heating use and clearer control of comfort.