Aqara FP400 Presence Sensor
By Ethan Halfhide · Updated
The Aqara FP400 (Spatial Multi-Sensor FP400) is a 60GHz mmWave presence sensor that tracks up to 10 people across an 8-zone, 120-degree field of view with 0.5m grid precision, released worldwide in September 2026. It supports both Thread and Zigbee, is Matter-enabled, and works with Apple Home, Alexa, Google Home, Home Assistant, and SmartThings. Suited to buyers wanting multi-person, zone-based presence detection for automations.
Radar detects every person in the room, without a camera.
Aqara FP400 Presence SensorSpecs and price last verified September 27, 2026
As an Amazon Associate HomeGearLab earns from qualifying purchases.
Specifications
- Price
- $59.99
- Device type
- Presence Sensor
- Ecosystems
- Alexa, Google Home, HomeKit, Matter, SmartThings
- Rooms
- living_room, bedroom, bathroom, office
- Connectivity
- zigbee, wifi
- Hub required
- No
- Rental friendly
- Yes
- Matter certified
- Yes
- Installation
- plug_in
- Energy Star
- No
- Local control
- Yes
- Voice control
- No
About
The Aqara FP400 uses 60GHz mmWave radar to do what motion sensors never could: detect exactly how many people are in a room, where they are, and what posture they're in, all without a camera in sight. Whether someone is sitting perfectly still at a desk or lying down in bed, the FP400 knows they're there and won't kill the lights.
You can divide a room into up to 30 detection zones and trigger separate automations for each, lights on only near the couch, HVAC adjusts when the office is occupied. Mount it on the ceiling and it also gains fall detection, alerting you if someone collapses, making it a practical safety device for households with elderly family members.
It supports both Zigbee and Thread protocols with Matter certification, so it works natively with Apple Home, Google Home, Alexa, Home Assistant, and SmartThings. Setup takes patience, the zone calibration is involved, but once dialed in, this is the most accurate presence sensor available for residential use.
Setup and compatibility notes
The FP400 can be added over Thread directly in the Aqara Home app using an existing third-party Thread Border Router, so an Aqara hub is not strictly required in that mode. An Aqara hub (such as Hub M3, M100, M200, or a Camera Hub) is needed when running it in Zigbee mode or to unlock full Matter integration with third-party platforms. It connects via USB-C power and pairs through the Aqara Home app.
Pros
- +60GHz mmWave detects stationary presence, not just motion
- +Up to 30 configurable detection zones per room
- +Fall detection when ceiling-mounted
- +Thread + Zigbee dual-protocol with Matter certification
Cons
- −Zone calibration setup takes significant time and patience
- −Requires Aqara hub to unlock exclusive Zigbee features
How it compares
| Device | Price | Ecosystems | Matter | Hub required | Local control |
|---|---|---|---|---|---|
| Aqara FP400 Presence Sensor | $59.99 | Alexa, Google Home, HomeKit, Matter, SmartThings | Yes | No | Yes |
| Aqara Presence Sensor FP2 | $82.99 | Alexa, Google Home, HomeKit | No | No | Yes |
FAQ
- Does the Aqara FP400 need a hub?
- Not necessarily: over Thread it can join the Aqara Home app via a third-party Thread Border Router, but Zigbee mode and full third-party Matter integration need an Aqara hub.
- Does the FP400 work with Apple HomeKit?
- Yes, it supports Apple Home via Matter, alongside Alexa, Google Home, Home Assistant, and SmartThings.
- Is the FP400 the same as the FP2?
- No. The FP400 is a newer, separate model that can track up to 10 people across 8 zones and supports both Thread and Zigbee.
- How many people can the FP400 track at once?
- It can track up to 10 people simultaneously with 0.5m x 0.5m grid precision across 8 zones.
About the author
Ethan Halfhide: Ethan Halfhide is a smart home enthusiast and AI technologist who follows the connected home market closely, from smart locks and security cameras to robot vacuums, lighting, sensors and hubs. He curates HomeGearLab's device directory, comparing products on published specs, compatibility, setup requirements and price so readers can pick gear that fits their home and works together.