Radiator Thermostat Comparison · UK 2026
Kasa KE100 vs tado° Smart Radiator Thermostat X

Specs, pros and cons compared side by side

Both the Kasa KE100 and the tado° Smart Radiator Thermostat X are smart radiator heating controls. This head-to-head sets them side by side using the specs, pros and cons from our full reviews. Kasa specs come from Tapo and TP-Link’s own pages; tado° specs come from our tado° review, checked against tado°’s own pages.

Quick verdict

Ad: we earn commission if you buy through the price buttons on this page. As an Amazon Associate I earn from qualifying purchases.

Kasa KE100

Pick it for: Open-window detection with a Tapo T110 (the tado°: part of the optional AI Assist subscription) · Geofencing (the tado°: part of the optional AI Assist subscription)

Check latest priceat Amazon

tado° Smart Radiator Thermostat X

Pick it for: Rechargeable battery pack, so no disposable batteries (the KE100: 2x AA alkaline) · Thread and Matter, with Apple Home (the KE100: sub-GHz hub link, Alexa and Google) · Six adapters that tado says are compatible with 95% of valves (the KE100: RA, RAV and RAVL)

Check latest price

Quick comparison

Spec Kasa KE100 tado° Smart Radiator Thermostat X
Connection Sub-GHz to the KH100 hub Thread and Matter
Hub or bridge needed Kasa Hub KH100 Bridge X or another supported Thread border router
Power 2x AA alkaline Rechargeable battery pack, USB-C, about once a year
Valve fit M30 x 1.5; RA, RAV, RAVL adapters M30 x 1.5; six adapters, 95% of radiator valves
Smart home Alexa, Google Alexa, Google Assistant, Apple Home
Kasa KE100

Pros

  • Works offline once set up
  • Adapters included
  • Open-window detection with a T110
  • Tapo sensors can correct the temperature

Cons

  • Needs the KH100 hub (sold in the KIT)
  • Uses the Kasa app, not Tapo
  • Tapo does not say it controls a boiler
tado° Smart Radiator Thermostat X

Pros

  • Rechargeable battery pack, so no disposable batteries
  • Thread and Matter
  • Six adapters that tado says are compatible with 95% of radiator valves
  • Schedules stored on the device keep running offline

Cons

  • Needs a Bridge X or another supported Thread border router
  • USB-C charging cable not included
  • Open window detection is part of the AI Assist subscription

As an Amazon Associate I earn from qualifying purchases. We may also earn a commission from qualifying tado° purchases.

Which should you buy?

Why choose the Kasa KE100

  • Open-window detection with a Tapo T110 (the tado°: part of the optional AI Assist subscription)
  • Geofencing (the tado°: part of the optional AI Assist subscription)
Why choose the tado° Smart Radiator Thermostat X

  • Rechargeable battery pack, so no disposable batteries (the KE100: 2x AA alkaline)
  • Thread and Matter, with Apple Home (the KE100: sub-GHz hub link, Alexa and Google)
  • Six adapters that tado says are compatible with 95% of valves (the KE100: RA, RAV and RAVL)

Related comparisons