tado° Radiator Thermostat X Starter Kit at a glance
In short: the tado° Radiator Thermostat X Starter Kit scores 8,8/10 in our thermostat rating (from €138). Biggest strength: rechargeable battery. Main trade-off: higher entry price.
All specifications come from manufacturer data sheets and the Amazon catalogue and were cross-checked before publication. The rating is an editorial overall assessment based on this data; we do not trial products ourselves.
tado° Radiator Thermostat X Starter Kit: what works and what doesn't
What works well
- Rechargeable battery: instead of batteries, a USB-C battery, according to the manufacturer only 1× per season to charge, saves battery waste and ongoing costs
- Matter & Thread: future-proof standards, can be networked across manufacturers, the included Bridge X serves as a Thread Border Router
- No extra window sensor: open-window detection works without additional contacts, plus geofencing and intelligent schedules
- Robust DIY mounting: a metal nut instead of plastic ensures a stable hold, adapters and a template for almost all radiator valves are included
- Full voice control: operable via touch display, app or Alexa, Google Assistant and Apple Siri
Points of criticism
- Higher entry price: as a Starter Kit with bridge clearly more expensive than simple battery thermostats, only pays off across several rooms
- AI Assist costs extra: the full savings (up to 55% more) depend on the AI Assist subscription for €3.99/month or €29.99/year
- Not backward compatible: according to the manufacturer tado° X is not compatible with tado° V3+ or older, switching from old devices means a complete changeover
Specifications in detail
| Type | Smart radiator thermostat (Starter Kit) |
| What is in the box | Thermostat X + Bridge X + adapter |
| Control | Touch display, app, Alexa/Siri/Google |
| Smart home | Matter, Thread (Border Router needed) |
| Power supply | Removable rechargeable battery, USB-C (~2 h charging time) |
| Functions | Schedules, geofencing, open-window detection |
| Mounting | DIY, metal nut, adapters for almost all valves |
| Savings | according to the manufacturer ~22% (more rooms = more) |
Build quality & everyday use
What carries the tado° Radiator Thermostat X Starter Kit in everyday use: a rechargeable battery (instead of batteries, a USB-C battery, according to the manufacturer only 1× per season to charge, saves battery waste and ongoing costs) and Matter & Thread (future-proof standards, can be networked across manufacturers, the included Bridge X serves as a Thread Border Router). The weaknesses have to be stated honestly: higher entry price. As a Starter Kit with bridge it is clearly more expensive than simple battery thermostats and only pays off across several rooms.
If you set the device up to save space, make sure it stands on a stable, level surface with some air around it. This protects the mechanics and electronics in continuous use.
Who is the tado° Radiator Thermostat X Starter Kit suited to? (Buying advice)
Perfect for:
- ✓Smart home users who rely on Matter/Thread
- ✓Households that want to avoid battery waste
- ✓Multi-room control with geofencing
- ✓Renters with DIY mounting without a tradesperson
Less suitable for:
- ✕Penny-pinchers who only regulate a single room
- ✕Owners of tado° V3+ who want to expand rather than replace
Similar thermostat models
Frequently asked questions about the tado° Radiator Thermostat X Starter Kit
Does the tado° X Starter Kit need a bridge?
Do I still have to change batteries with the tado° X?
Is tado° X compatible with older tado° devices?
How much can I save with the thermostat?
Verdict: is the tado° Radiator Thermostat X Starter Kit worth it?
A safe choice in its class: if you can live with a higher entry price, from €138 you get mainly one thing: a rechargeable battery. Best suited to: smart home users who rely on Matter/Thread.
If you want to compare alternatives, you will find detailed data and reviews on our thermostats comparison page.
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