Aqara Smart Video Doorbell G400
$249.00
In stockVideo doorbell with options of wired power or POE. Supports 2k resolution and wide angle with portrait view - see from head to toe footage.
Category: Smart Cameras
Non-stop protection, from face to floor.
Crystal-clear 2K video with a 165° head-to-toe view, powered by PoE or your existing doorbell wiring — no batteries to charge, ever.
- 1536 × 2048 video
- 2K1536 × 2048 video
- Diagonal field of view
- 165°Diagonal field of view
- Head-to-toe aspect ratio
- 3:4Head-to-toe aspect ratio
- Invisible night vision
- 940nmInvisible night vision
- Weatherproof rating
- IP65Weatherproof rating
See the whole doorway, in every detail
A 165° ultra-wide lens with a tall 3:4 aspect ratio captures visitors head to toe — so you can check a face and the parcel on the ground in one frame. Crisp 2K resolution holds detail day and night.
- Head-to-toe view — the portrait 3:4 frame catches packages left at your feet, not just faces
- Invisible night vision — subtle 940nm infrared LEDs give full-HD footage in total darkness, with no tell-tale red glow
- Brightness tuning — adjust the exposure so faces and parcels never wash out or fall into shadow
Local AI that flags what matters
The G400 runs motion and person detection on-device, in real time, without sending footage to the cloud. Draw custom zones over the areas you care about, and get an alert the moment someone steps in — not every time a car drives past.
- Person & motion detection — processed locally for fast, private alerts
- Custom activity zones — focus on your gate or porch and ignore the pavement beyond
- Tamper alarm — sounds a loud alert if anyone tries to prise the doorbell off the wall
The door rings straight to your phone
Press the button and your phone gets an instant video call — see who's there and talk back in real time, whether you're in the kitchen or overseas. Too busy to talk? Send a preset reply in a tap.
- Instant two-way video call — live view and full-duplex audio the moment the bell is pressed
- Quick replies — three preset messages (plus your own) answer common callers hands-free
- Ring, your way — set how many times it rings, and pair or unpair the included chime any time
Two ways to power it. No batteries either way.
Run a single Ethernet cable for rock-steady PoE, or tap your home's existing 8–24V doorbell wiring for continuous power. Both keep the camera recording 24/7 with nothing to recharge. An IP65 body and Wi-Fi 6 keep it reliable through the weather.
- PoE (802.3af) — power and data over one cable — the most stable option for a new install
- Existing doorbell wiring — reuse low-voltage 8–24V AC/DC wiring for a fast swap
- IP65 + Wi-Fi 6 — rain- and dust-resistant, on dual-band 2.4/5GHz with WPA3 security
Works with the platforms you already use
Keep footage where you want it and view it where it suits you — no lock-in to a single app.
Apple, Google, Alexa & SmartThings
HomeKit Secure Video for live view, alerts and two-way talk on Apple devices, plus live streaming to Google, Alexa and SmartThings smart displays.
Home Assistant ready
RTSP and ONVIF support means power users can pull the stream straight into Home Assistant or a standard NVR.
24/7 local recording
record continuously to a microSD card up to 512GB, with automatic backup to an SMB NAS on your own network.
Tech specifications
| Model | DB-C03E (Wired) · DB-C03D (Select, Wired) |
|---|---|
| Video resolution | 1536 × 2048 (2K) |
| Viewing angle | 165° diagonal, 3:4 aspect ratio |
| Night vision | 940 nm invisible infrared |
| Connectivity | Ethernet · Wi-Fi 6 (802.11 a/b/g/n/ac/ax, 2.4/5 GHz) |
| Wireless security | WPA3 |
| PoE input | IEEE 802.3af (48V) |
| Power input | 8–24V AC, 1.3A 50/60Hz · or 8–24V DC, 0.8A |
| Local storage | microSD up to 512 GB; SMB NAS backup |
| Weatherproofing | IP65 |
| Operating temperature | -20°C to 50°C |
| Operating humidity | 0–95% RH, non-condensing |
| Dimensions | Doorbell: 140.97 × 52.97 × 32.4 mm · Chime: 60.42 × 60 × 23 mm |
| In the box | Doorbell G400 (Wired) × 1, Chime × 1, User Manual × 2, USB-C cable × 1, Wall screws & anchors kit × 1, Mounting plate × 1, 15° wedge × 1, Sealing plug × 2, Detaching pin × 1, Extension wires kit × 1, Mounting hole template × 1 |
HomeKit Secure Video requires a compatible Apple Home hub and iCloud+. Cloud AI detection (faces, animals, packages, vehicles), up to 90-day encrypted cloud storage and AI video search are HomeGuardian features that need a paid subscription after the free trial — plan availability and pricing may vary in Singapore. The G400 Select is a lower-cost variant; confirm which version is in stock before ordering. iCloud+ or other supported cloud storage is not included and is billed separately by the provider. To control this HomeKit-enabled accessory, the latest version of iOS or iPadOS is recommended. The indoor chime is USB-C powered — a USB power adapter is not included.
