Aqara Presence Sensor FP1E vs Sonoff SenseGuard Presence Core

Presence and absence events drive scenes and notifications, with a configurable occupancy timeout before the room is reported empty.

Zigbee 3.0 (IEEE 802.15.4) end device with an open-area range of 100m. It needs a Zigbee coordinator: a SONOFF gateway, or any Zigbee 3.0 hub such as a Zigbee2MQTT or ZHA dongle.

SONOFF's detection-range section states a 120° detection angle, matching the figure in SmartHomeScene's hands-on. The highlights blurb on the same help center page says 110°, which is the angle of the older SNZB-06P.

Presence and the lux reading can both trigger eWeLink scenes, which is how SONOFF pitches it for lighting that only turns on when the room is dark and occupied.

eWeLink keeps occupancy detection logs and a record of the light level over time, which SONOFF also allows exporting.

The radar answers occupied or not occupied. SONOFF never claims people counting, and Zigbee2MQTT exposes a single occupancy binary rather than per-target data.

SONOFF states the device cannot accurately detect a sleeping person, because the chest movement of breathing during sleep is too subtle for it.

SONOFF states the device can act as a Zigbee router and extend the coverage of the mesh, which its permanent USB-C power allows.

Zigbee2MQTT supports the exact model and exposes occupancy, illuminance, the occupancy timeout, radar sensitivity, the seven detection zones and the spatial learning calibration. SONOFF also documents ZHA, which currently needs a quirk script it provides.

mmwave sensor

24GHz mmWave radar that reads micro-movements such as the chest expansion of breathing, so it holds detection on someone sitting still. SONOFF notes a completely motionless person is best detected within 3 meters facing the device, and that it cannot reliably detect a sleeping person.