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Updated October 2026
Data from the official Aqara and Shelly sites.
2026 verdict
For an open-plan room where the lights have to stay on while people sit still, the Shelly Presence Gen4 is the stronger of these two mmWave presence sensors.
It is Matter certified over Wi-Fi and can be switched to Zigbee 3.0, so Apple Home, Alexa, Google Home, SmartThings and Home Assistant all commission it without a vendor hub, and it covers a slightly larger field at 42 square metres against 40, traces up to 6 people across 10 zones against 5, and adds local MQTT, scripting and webhooks. The Aqara Presence Sensor FP2 is the more affordable, IPX5-rated option and the only one of the two with fall detection and contactless sleep monitoring, which makes it the pick for a bathroom or a care setup. Choose the Aqara Presence Sensor FP2 for those care and humidity cases, and the Shelly Presence Gen4 for a hub-free Matter or Zigbee home that wants wider zone tracking.
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| Feature | Aqara Presence Sensor FP2 | Shelly Presence Gen4 | Winner |
|---|---|---|---|
| Rating | 3.6 | 4.0 | Shelly Presence Gen4 |
| Weather Resistance | IPX5 | NO | Aqara Presence Sensor FP2 |
| Connectivity | 2.4 GHz WiFi, Bluetooth | 2.4 GHz WiFi, Bluetooth, Zigbee | Shelly Presence Gen4 |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Shelly Presence Gen4 |
| Alerts | Presence Alerts, Fall Alerts | Presence Alerts | Aqara Presence Sensor FP2 |
| Area of Detection | 431 sq ft 40 m² | 452 sq ft 42 m² | Shelly Presence Gen4 |
| Angle of Detection | 120° | 140° Horizontal / 120° Vertical | Shelly Presence Gen4 |
| Range of Detection | 7m / 23ft | 8m / 26ft | Shelly Presence Gen4 |
| Sensors | Presence, Light | Presence, Light | Tie |
| Multi-Person Detection | YES | YES | Tie |
| Local Control | YES | YES | Tie |
What the differences mean
Matter and Zigbee
The Shelly Presence Gen4 is Matter certified over Wi-Fi out of the box and can be switched to Zigbee 3.0 in firmware, so it joins Apple Home, Alexa, Google Home, SmartThings and Home Assistant without a vendor hub. The Aqara Presence Sensor FP2 relies on its own app and platform integrations, with no Matter support.
Detection coverage
The Shelly Presence Gen4 reaches 8 m and 140 degrees horizontally against 7 m and 120 degrees on the Aqara Presence Sensor FP2, over 42 square metres against 40. The gap is small, but the Shelly holds presence from a little further back and wider.
People and zones
The Shelly Presence Gen4 identifies up to 6 people across 10 zones, while the Aqara Presence Sensor FP2 tracks up to 5. In a busy open-plan room the Shelly divides the space into finer slices for per-zone lighting.
Fall and sleep monitoring
Only the Aqara Presence Sensor FP2 offers fall detection and contactless sleep monitoring, both useful for looking after an elderly relative. The Shelly Presence Gen4 has neither, and its presence, fall and sleep modes on the Aqara cannot run at the same time.
Weather resistance
The Aqara Presence Sensor FP2 is IPX5 rated, so it can sit in a bathroom or under a roof outdoors. The Shelly Presence Gen4 is specified for indoor use only, with no published IP rating, so a steamy room suits the Aqara better.
Price
The Aqara Presence Sensor FP2 is the cheaper of the two, which is what wins it the price row. The Shelly Presence Gen4 asks more for the hub-free Matter and Zigbee path, local scripting and the wider coverage.
Which one to buy if
- your home runs on Matter or you want one sensor to join every platform without a vendor hub
The Shelly Presence Gen4 is Matter over Wi-Fi certified and can switch to Zigbee 3.0, while the Aqara Presence Sensor FP2 has no Matter support.
- you need fall detection or sleep monitoring
Only the Aqara Presence Sensor FP2 offers these care features; the Shelly Presence Gen4 has neither.
- the sensor is going in a bathroom or a humid spot
The Aqara Presence Sensor FP2 is IPX5 rated, while the Shelly Presence Gen4 is indoor-only with no IP rating.
- you want local MQTT, scripting and webhooks on the device
The Shelly Presence Gen4 runs local logic, MQTT and webhooks itself, which the Aqara Presence Sensor FP2 does not expose.
- you want to track more people in one large open-plan room
The Shelly Presence Gen4 handles up to 6 people across 10 zones against 5 on the Aqara Presence Sensor FP2.
- + Weather Resistance: IPX5
- + Alerts: Presence Alerts, Fall Alerts
- - Rating: 3.6 vs 4.0
- - Connectivity: 2.4 GHz WiFi, Bluetooth vs 2.4 GHz WiFi, Bluetooth, Zigbee
Winner
$84.99
- + Rating: 4.0
- + Connectivity: 2.4 GHz WiFi, Bluetooth, Zigbee
- + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
- - Weather Resistance: NO vs IPX5
- - Alerts: Presence Alerts vs Presence Alerts, Fall Alerts
What owners say
Owners of the Aqara Presence Sensor FP2 describe a sensor that, once tuned, feels a level above PIR: the lights no longer cut out while they sit reading, eating or watching television, because the radar still sees them. They single out splitting one open-plan space into several zones so a single unit replaces four or more motion sensors, near-instant triggering, person tracking for larger households, and the built-in light sensor. Constant USB-C power is a repeated plus, since there is no battery to change. The complaints are equally consistent: ghost detections from ceiling fans, mirrors and moved objects until interference zones are drawn, an involved setup that needs an Aqara account even for local HomeKit, and the requirement to pick one of the presence, fall or sleep modes at a time.
Frequently Asked Questions
Which is better overall: Aqara Presence Sensor FP2 or Shelly Presence Gen4?
The Shelly Presence Gen4, for a hub-free home: it is Matter certified over Wi-Fi, can switch to Zigbee 3.0 and covers a slightly wider field with finer zones. The Aqara Presence Sensor FP2 is the more affordable pick and the only one with fall detection, sleep monitoring and IPX5 protection.
What is the biggest difference between the Aqara Presence Sensor FP2 and the Shelly Presence Gen4?
How they connect. The Shelly Presence Gen4 speaks Matter over Wi-Fi and can be switched to Zigbee 3.0, so it joins every major platform without a hub. The Aqara Presence Sensor FP2 uses 2.4 GHz Wi-Fi with its own integrations and offers no Matter.
Does either sensor detect falls?
Only the Aqara Presence Sensor FP2 has fall detection, which needs a ceiling mount, plus contactless sleep monitoring. The Shelly Presence Gen4 offers neither, and on the Aqara the presence, fall and sleep modes cannot all run at once.
Do both work with Apple Home, Alexa, Google Home and Home Assistant?
Yes. The Shelly Presence Gen4 reaches them through Matter over Wi-Fi, and the Aqara Presence Sensor FP2 through its own integrations, including HomeKit, which is also how Home Assistant sees it. Neither needs a vendor hub for those platforms.
Which is better for a bathroom?
The Aqara Presence Sensor FP2, which is IPX5 rated and rated for humid environments. The Shelly Presence Gen4 is indoor-only and publishes no IP rating, so a steamy bathroom is not its intended spot.
Who should buy the Shelly Presence Gen4?
Buy it for a Matter or Zigbee home that wants zone occupancy without a hub, for a room with an outlet where a wider field and up to 6-person tracking matter, and for anyone who wants local MQTT and scripting on the sensor itself.
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