Aqara Door and Window Sensor P2 vs SwitchBot Contact Sensor

The SwitchBot Contact Sensor wins overall on price, rating, battery life and sensing, adding motion and light detection to door contact. The Aqara Door and Window Sensor P2 counters with native HomeKit and no-hub Matter over Thread, so it suits HomeKit-focused buyers.

Sensing scope versus connectivity. The SwitchBot Contact Sensor is a 3-in-1 device detecting contact, motion and light, while the Aqara Door and Window Sensor P2 is a contact-only sensor that runs Matter over Thread and adds HomeKit and tamper alerts.

The SwitchBot Contact Sensor. It packs door contact, motion and ambient light into one unit, whereas the Aqara Door and Window Sensor P2 only monitors open/close. With Alexa, though, only the SwitchBot's contact function is exposed, with motion and light staying in its own app.

The Aqara Door and Window Sensor P2 supports native Apple HomeKit and Matter over Thread with no dedicated hub. The SwitchBot Contact Sensor has no native HomeKit, and its Matter, Alexa and Google support requires a SwitchBot Hub.

Buy the SwitchBot Contact Sensor if you want a cheaper, higher-rated 3-in-1 sensor for a Home Assistant or SwitchBot setup, with door, motion and light detection and about three years of AAA battery life. Add a SwitchBot Hub for remote access and voice assistants.

Buy the Aqara Door and Window Sensor P2 if you want native HomeKit and no-hub Matter over Thread with tamper alerts and a wide sensor-magnet gap for trimmed doors, and you have a Thread border router.