Aqara FP2 mmWave Presence Sensor
Overview
The Aqara FP2 mmWave Presence Sensor represents a meaningful step forward from the passive infrared sensors most smart homes still rely on. PIR sensors work by detecting movement — the moment you stop moving, they lose track of you. mmWave radar, by contrast, picks up the tiny physical signals your body produces even at rest. That changes a lot. The FP2 connects directly to 2.4 GHz Wi-Fi — no hub needed — and works with HomeKit, Alexa, Google Home, and Home Assistant. One thing worth knowing upfront: it runs on continuous wired power via USB-C, so placement depends on where you can route a cable. The zone configuration is genuinely powerful, but it takes patience to dial in.
Features & Benefits
The technology backbone here is what sets this mmWave sensor apart. It covers up to 430 square feet and can track up to five people simultaneously, assigning each a position within the room rather than simply flagging that someone moved. You can carve that space into 30 independent zones — sofa, desk, bed — and attach different automations to each. Mount it on the ceiling and fall detection activates, sending an app alert if someone goes down, which is useful for elderly family members living alone. There is also contact-free sleep monitoring that tracks stages, heart rate, and respiration. A built-in light sensor rounds things out, and all automations run locally, so the system keeps working even when your internet goes down.
Best For
This presence detector makes the most sense for people already invested in a smart home ecosystem — HomeKit users, Home Assistant tinkerers, or anyone running Alexa or Google Home routines who wants more precision than a standard motion sensor can offer. It is a solid option for families keeping an eye on an elderly parent, since the camera-free design respects privacy while still sending useful alerts. The IPX5 waterproof rating makes it genuinely viable in bathrooms, opening up automations most sensors cannot handle. Anyone who values local automation over cloud dependency will appreciate that it keeps running offline. That said, if you are new to smart home setups and expecting plug-and-play simplicity, the learning curve may catch you off guard.
User Feedback
The FP2 sits at 3.7 stars overall — an honest reflection of a device that impresses technically but frustrates during setup. Users consistently praise its accuracy in still-presence detection, which is exactly where PIR sensors have always fallen short. The Home Assistant integration via HomeKit Controller gets specific credit for being stable and reliable. On the other side, the Aqara Home app draws complaints for its steep learning curve, and Wi-Fi stability can become an issue if the sensor sits more than about 6 meters from your router — something worth planning around. A few buyers also note that fall detection should be treated as a supplementary alert, not a replacement for dedicated safety equipment. Capable hardware, but set your expectations for setup accordingly.
Pros
- Detects stationary people accurately — no more lights shutting off while you are sitting still at your desk.
- A single unit can replace several basic motion sensors thanks to its 430 square foot coverage area.
- Up to 30 configurable zones let you assign different automations to a sofa, a bed, and a desk independently.
- Works with HomeKit, Alexa, Google Home, and Home Assistant without requiring a separate hub.
- IPX5 waterproofing makes it one of the few presence sensors genuinely safe for bathroom use.
- Local automation execution means your routines keep running even during an internet outage.
- The built-in light sensor adds useful context for lighting automations without needing a separate device.
- Home Assistant integration via HomeKit Controller is widely reported as stable and reliable.
- Camera-free design provides meaningful peace of mind for privacy-conscious households.
- Tracks up to five people simultaneously with individual positional data, not just a single presence flag.
Cons
- Requires continuous wired power — there is no battery option, so placement depends entirely on cable access.
- Only supports 2.4 GHz Wi-Fi; households running 5 GHz-only networks will hit an immediate compatibility wall.
- The Aqara Home app has a steep learning curve, and zone setup can take considerable trial and error to get right.
- Wi-Fi connection can become unstable if the FP2 is placed more than about 6 meters from the router.
- The power adapter is not included in the box, which is an easy-to-miss extra cost at checkout.
- Fall detection works only in ceiling-mount orientation, which limits where and how you can install it.
- Sleep monitoring is a supplementary feature and should not be treated as a substitute for medical-grade tracking.
- The 3.7-star average rating signals that a meaningful share of buyers run into real frustration during setup.
- Google Home and Alexa require connecting through Aqara Home first, adding steps compared to direct pairing.
- Detection angle is 120° horizontal and 40° vertical, so room geometry and mounting height genuinely affect performance.
Ratings
Our AI scoring system analyzed thousands of verified global user reviews for the Aqara FP2 mmWave Presence Sensor, actively filtering out incentivized, bot-generated, and duplicate submissions to surface what real buyers actually experience. The scores below reflect both the genuine strengths that make this sensor stand out in the smart home space and the friction points that have frustrated a meaningful share of buyers. Nothing has been smoothed over — the ratings are calibrated to give you an honest picture before you decide.
Presence Detection Accuracy
Zone Configuration Flexibility
Platform Compatibility
Setup & App Experience
Wi-Fi Connectivity Stability
Fall Detection Usefulness
Sleep Monitoring Quality
Multi-Person Tracking
Build Quality & Design
Value for Money
Installation Ease
Local Automation Reliability
Water & Environment Resistance
Light Sensor Integration
Suitable for:
The Aqara FP2 mmWave Presence Sensor is a strong fit for smart home enthusiasts who want a single, intelligent device to replace a cluster of basic motion sensors across a room. If you are running HomeKit, Home Assistant, Alexa, or Google Home and want your automations to respond to where people actually are — not just whether something moved — this sensor delivers that level of precision. Caregivers looking for a non-intrusive way to keep an eye on an elderly parent will appreciate the ceiling-mount fall alert feature and the fact that no camera is involved; it watches over a space without watching anyone. The IPX5 water resistance rating opens up genuinely useful bathroom automations that most sensors simply cannot handle safely. Anyone who prioritizes local processing will also find comfort in the fact that routines continue running even when the internet is down.
Not suitable for:
The Aqara FP2 mmWave Presence Sensor is not the right choice if you are expecting a straightforward, plug-and-play experience — the zone configuration and Aqara Home app have a real learning curve that can be discouraging for casual users. It also requires continuous wired power via USB-C, which means placement is dictated by cable access rather than wherever is most convenient; renters or anyone who dislikes cable management should think carefully before buying. The sensor only connects over 2.4 GHz Wi-Fi, so if your router broadcasts exclusively on 5 GHz or you cannot place the sensor within roughly 6 meters of your router, connectivity problems are likely. Fall detection and sleep monitoring are supplementary alert features, not medically validated tools, so anyone looking for clinically reliable safety monitoring should look elsewhere. Finally, if you have no existing smart home ecosystem and no interest in building one, the feature set here will largely go unused.
Specifications
- Detection Technology: Uses millimeter-wave (mmWave) radar to detect human presence, including stationary occupants, without requiring any physical movement.
- Coverage Area: Monitors up to 40 sq m (430 sq ft) in a single room with one sensor unit.
- Detection Angle: Covers a 120° horizontal and 40° vertical field, making placement height and angle important factors for optimal performance.
- Max Range: Effective detection reaches up to 8 meters (approximately 26 feet) from the sensor.
- Zone Configuration: Supports up to 30 independently configurable detection zones within the coverage area, each capable of triggering separate automations.
- Multi-Person Tracking: Simultaneously detects and tracks up to 5 occupants with individual positional data rather than a single combined presence signal.
- Power Source: Requires continuous wired power via USB-C at 5V and 1A; a power adapter is not included in the box.
- Connectivity: Connects exclusively over 2.4 GHz Wi-Fi and does not support 5 GHz networks or require a proprietary hub.
- Water Resistance: Rated IPX5, meaning it can withstand water jets from any direction, making it suitable for bathroom and humid environment installation.
- Dimensions: Measures 2.51″ in depth, 2.51″ in width, and 1.14″ in height, resulting in a compact, puck-shaped form factor.
- Weight: The sensor unit weighs 2.72 ounces, light enough for ceiling mounting without heavy-duty hardware.
- Compatible Platforms: Works natively with Apple HomeKit, Amazon Alexa, Google Home, and Home Assistant via HomeKit Controller integration.
- Mounting Options: Can be mounted on a wall or ceiling; ceiling mounting is specifically required to enable fall detection mode.
- Extra Sensor: Includes a built-in ambient light sensor that can be used to trigger light-level-based automations in Aqara Home, HomeKit, and IFTTT.
- Local Automation: Automation routines execute locally on the device and continue to function without an active internet connection.
- Fall Detection: When ceiling-mounted, the sensor can detect sudden falls and send an alert notification through the Aqara Home app.
- Sleep Monitoring: Tracks sleep stages, estimated heart rate, and respiration rate without any wearable or direct contact with the user.
- In the Box: Package includes the presence sensor, a USB-C to USB-A cable, a metal mounting plate, adhesive sticker, screw kit, and a user manual.
- Operating Temperature: Rated for use between 14°F and 104°F (-10°C to 40°C), covering typical indoor environments including unheated bathrooms.
- Router Distance: Aqara recommends placing the sensor within 6 meters (approximately 19 feet) of the router for a stable Wi-Fi connection.
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