★ Made in Germany · HomeKit 8.4 / 10 · Editorial score

Editorial rating based on manufacturer specs and Amazon catalogue data. We do not trial products ourselves. How we rate

Eve Thermo 2020: HomeKit Made in Germany

Prices in euros from Amazon.de, as of 11 June 2026. Prices and availability may differ on Amazon.co.uk.

By Seydhan Cakmak · Editor-in-chief · Updated: · AI-translated from the German original

The Eve Thermo 2020 is the radiator thermostat for Apple users: the focus is Apple HomeKit, and since the Matter update also Alexa and Google. Made in Germany, checked by Stiftung Warentest, local control with no cloud requirement (no Eve cloud, no registration, no tracking). Touch panel, LED display, Thread support. The most privacy-friendly choice for Apple households.

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Eve Thermo 2020 Radiator Thermostat (HomeKit/Thread)

⌗ Available variants

Thermo 2020 (single) Thermo 2020 2-pack

Eve Thermo 2020 at a glance

In short: the Eve Thermo 2020 scores 8,4/10 in our radiator thermostat review (from €52). Biggest strength: native Apple HomeKit. Main compromise: shorter battery life.

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.

Eve Thermo 2020: what works, what doesn't?

What works well

  • Native Apple HomeKit: the best HomeKit integration of all thermostats
  • Made in Germany: development and quality from Munich
  • Cloud-free: no registration, no tracking, local control
  • Thread + Matter: future-proof, fast response times
  • Checked by Stiftung Warentest: external check by Stiftung Warentest
  • Touch panel: direct operation on the device
  • Privacy role model: the best privacy in its class

Points of criticism

  • Shorter battery life: 3 to 6 months vs. 2 years for Bosch
  • Apple focus: full features only in the Apple ecosystem
  • Remote access needs a home hub: HomePod/Apple TV for control when you are out
  • Slightly dearer than Bosch: €52 vs. €40

Specifications in detail

ManufacturerEve Systems (Munich)
ModelThermo 2020 (4th gen)
Device typeWireless radiator thermostat
WirelessBluetooth LE + Thread (Matter)
Hub needed?Optional (Apple Home hub for remote access)
Smart homeApple HomeKit, Alexa, Google (Matter)
Battery3 to 6 months (2× AA)
MatterYes (via update)
CloudNone (local, no registration)
DisplayLED + touch panel
Made in GermanyYes
Stiftung WarentestChecked
Frost protectionYes
Valve compatibilityDanfoss M30 × 1.5 + adapter
Warranty24 months

Build quality & everyday use

What carries the Eve Thermo 2020 in everyday use: native Apple HomeKit (the best HomeKit integration of all thermostats) and Made in Germany (development and quality from Munich). We have to be honest about the weaknesses: shorter battery life, 3 to 6 months vs. 2 years for Bosch.

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.

“Eve Thermo 2020 Radiator Thermostat (HomeKit/Thread): native Apple HomeKit and Made in Germany, and the trade-off is shorter battery life. At 8.4/10 a fair deal from €52.”
The MiniHaushalt.de editorial team

Who is the Eve Thermo 2020 suited to? (buying advice)

Perfect for:

  • ✓Apple HomeKit households
  • ✓Privacy-conscious users (cloud-free)
  • ✓Anyone who wants Made in Germany
  • ✓Thread/Matter ecosystem users
  • ✓HomePod/Apple TV owners

Less suitable for:

  • ✕Pure Android/Alexa users
  • ✕Anyone who wants maximum battery life (Bosch is better)
  • ✕Budget buyers (FRITZ!DECT is cheaper)

Eve Thermo 2020 compared with alternatives

Head-to-head with the top alternatives from our radiator thermostats comparison

Feature Eve Thermo 2020 Bosch Smart Home II [+M] tado° V3+ Homematic IP compact
WirelessBluetooth + ThreadZigbee / Matter868 MHz + Bridge868 MHz HmIP
Hub needed?Optional (home hub)OptionalYes (in set)Access Point / CCU3
Smart homeHomeKit, Alexa, Google (Matter)Alexa, Google, HomeKit (Matter)Alexa, Google, HomeKit, MatterAlexa, Google
Battery3 to 6 months (2× AA)>2 years (2× AA)6 to 24 months (2× AA)about 2 yrs (2× AA)
MatterYesYesYesNo
Pricefrom €52from €40from €150from €40

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Frequently asked questions about the Eve Thermo 2020

Does the Eve Thermo work without Apple devices?
To a limited extent. Since the Matter update it can also be integrated into Alexa, Google Home and SmartThings. The focus is clearly on Apple HomeKit, though, where it has the best integration. For pure Android/Alexa households, the FRITZ!DECT 302 or Bosch are the better choice.
Do I need a hub?
For local control by Bluetooth directly from your smartphone: no. For remote access when you are out and for automations you need an Apple Home hub (HomePod, HomePod mini or Apple TV). Via Thread/Matter it also works with other Matter hubs.
What about data protection?
Exemplary. Eve does without its own cloud entirely: no registration, no account, no tracking. All data stays local on your devices and in HomeKit. That is the most privacy-friendly solution in the comparison.
Why only 3 to 6 months of battery life?
The LED display and the more frequent Bluetooth/Thread communication use more power than the E-Ink display of the FRITZ!DECT 302. AA lithium batteries can extend the runtime.
Is it really Made in Germany?
Yes, Eve Systems (formerly Elgato) develops and manufactures in Munich. That sets it apart from most competitors made in China. Quality and support are correspondingly high.
Will it fit my radiator?
On most German radiators (Danfoss M30 × 1.5 standard). Adapters for RA, RAV and RAVL are included. Tool-free installation in a few minutes.
8.4 / 10 · Made in Germany · HomeKit

Verdict: is the Eve Thermo 2020 worth it?

A solid option with a clear profile: if you can live with the shorter battery life, from €52 you get mainly one thing: native Apple HomeKit. It suits best: Apple HomeKit households.

If you want to compare alternatives, you will find detailed data and reviews on our radiator thermostats comparison page.

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