Data from Amazon and official Aqara and Bosch sites.
2026 verdict
Across the full comparison in 2026, Bosch Smart radiator thermostat II [+M] earns the nod. It has the clearer edge on rating, battery life, and connectivity, and it stays ahead on integrations and child lock. Aqara Radiator Thermostat E1 is the better fit only for buyers who prioritize price and geofencing above everything else here. In practical terms, Bosch Smart radiator thermostat II [+M] is the easier product to recommend.
![Bosch Smart radiator thermostat II [+M]](/img/item-types/radiator-valves/bosch-smart-radiator-thermostat-2-thumb.webp)
| Feature | Aqara Radiator Thermostat E1 | Bosch Smart radiator thermostat II [+M] | Winner |
|---|---|---|---|
| Price | €36.99 | €70.47 | Aqara Radiator Thermostat E1 |
| Rating | 3.8 | 4.2 | Bosch Smart radiator thermostat II [+M] |
| Battery Life | 1 year | 2 years | Bosch Smart radiator thermostat II [+M] |
| Connectivity | Zigbee | Zigbee, Thread Protocol | Bosch Smart radiator thermostat II [+M] |
| Integrations | Google Home, Alexa, Apple HomeKit, Home Assistant, IFTTT | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Bosch Smart radiator thermostat II [+M] |
| Geofencing | YES | NO | Aqara Radiator Thermostat E1 |
| Child Lock | NO | YES | Bosch Smart radiator thermostat II [+M] |
| Warranty | 1 year | 1 year | Tie |
| Screen | YES | YES | Tie |
| Sensors | Temperature | Temperature | Tie |
| Frost Protection | YES | YES | Tie |
12% OFF
€41.99
€36.99
- + Price: €36.99
- + Geofencing: YES
- - Rating: 3.8 vs 4.2
- - Battery Life: 1 year vs 2 years
Winner
17% OFF
€84.95
€70.47
- + Rating: 4.2
- + Battery Life: 2 years
- + Connectivity: Zigbee, Thread Protocol
- - Price: €70.47 vs €36.99
- - Geofencing: NO vs YES
Frequently Asked Questions (FAQ)
- Which is better overall: Aqara Radiator Thermostat E1 or Bosch Smart radiator thermostat II [+M]?
- Bosch Smart radiator thermostat II [+M] has the stronger overall profile in this comparison, especially for rating, battery life, and connectivity.
- What is the biggest difference between Aqara Radiator Thermostat E1 and Bosch Smart radiator thermostat II [+M]?
- Price is one of the clearest differences: Aqara Radiator Thermostat E1 lists €36.99, while Bosch Smart radiator thermostat II [+M] lists €70.47.
- Which one looks better on price?
- Aqara Radiator Thermostat E1 is listed at €36.99, while Bosch Smart radiator thermostat II [+M] is listed at €70.47. Aqara Radiator Thermostat E1 (better spec).
- Who should buy Aqara Radiator Thermostat E1?
- Choose Aqara Radiator Thermostat E1 if your priority is price and geofencing and that matters more than rating.
- Who should buy Bosch Smart radiator thermostat II [+M]?
- Choose Bosch Smart radiator thermostat II [+M] if your priority is rating and battery life and that matters more than price.
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