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| Feature | Aqara Doorbell Camera G400 (Wired) | Google Nest Doorbell (wired, 3rd Gen) | Winner |
|---|---|---|---|
| Price | $99.99 | $196.81 | Aqara Doorbell Camera G400 (Wired) |
| Rating | 4.2 | 4.4 | Google Nest Doorbell (wired, 3rd Gen) |
| Connectivity | 2.4 GHz WiFi, 5 GHz WiFi, Ethernet | 2.4 GHz WiFi, 5 GHz WiFi | Aqara Doorbell Camera G400 (Wired) |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant | Google Home, Alexa, Samsung SmartThings, Home Assistant | Aqara Doorbell Camera G400 (Wired) |
| Voice Changing | YES | NO | Aqara Doorbell Camera G400 (Wired) |
| Automatic Replies | YES | NO | Aqara Doorbell Camera G400 (Wired) |
| Warranty | 1 year | 1 year | Tie |
| Storage | MicroSD Card Slot, Cloud | Internal, Cloud | Tie |
| Alerts | Motion, People, Packages, Animals, Vehicles, Familiar Faces | Motion, People, Packages, Animals, Vehicles, Familiar Faces | Tie |
| Customizable Motion Zones | YES | YES | Tie |
| Indoor Custom Ringtone | YES | YES | Tie |
What the differences mean
Local storage and subscription
The Aqara Doorbell Camera G400 (Wired) records 24/7 to a microSD card of up to 512 GB with SMB NAS backup, and its core features need no plan. The Google Nest Doorbell (wired, 3rd Gen) has no microSD slot, gives you free event clips from the past six hours plus a one-hour offline buffer, and needs Nest Aware for continuous history, longer storage and familiar faces.
Ecosystem breadth
The Aqara Doorbell Camera G400 (Wired) covers HomeKit Secure Video, Google Home, Alexa, SmartThings and Home Assistant, plus RTSP and ONVIF. The Google Nest Doorbell (wired, 3rd Gen) works with Google Home, Alexa, SmartThings and Home Assistant, but has no HomeKit, no RTSP and no Matter.
Connectivity
The Aqara Doorbell Camera G400 (Wired) can take PoE over Ethernet, or 8-24V wiring, and adds dual-band Wi-Fi 6 with WPA3. The Google Nest Doorbell (wired, 3rd Gen) is wired only over a doorbell transformer and connects by dual-band Wi-Fi, with no Ethernet and no PoE.
Video and HDR
Both shoot 2K. The Google Nest Doorbell (wired, 3rd Gen) adds HDR and a tall 1:1 frame, while the Aqara Doorbell Camera G400 (Wired) uses a 3:4 frame that is also built to show a parcel on the step and has no HDR.
Smart alerts
The Google Nest Doorbell (wired, 3rd Gen) distinguishes people, packages, animals and vehicles on the device without a plan, and puts familiar-face alerts behind Nest Aware. The Aqara Doorbell Camera G400 (Wired) keeps local motion and person detection free and gates package, vehicle, animal and face detection behind HomeGuardian.
Which one to buy if
- you want recordings you own outright
The Aqara Doorbell Camera G400 (Wired) writes 24/7 to a microSD card and can back up to an SMB NAS, with no monthly fee for the core features.
- your home already runs on Google
The Google Nest Doorbell (wired, 3rd Gen) is managed in the Google Home app and rings through to a Nest Hub alongside your other Google devices.
- you want package and animal alerts without a subscription
The Google Nest Doorbell (wired, 3rd Gen) runs those detections on the device, where the Aqara Doorbell Camera G400 (Wired) gates them behind HomeGuardian.
- you need HomeKit Secure Video
Only the Aqara Doorbell Camera G400 (Wired) supports Apple HomeKit; the Google Nest Doorbell (wired, 3rd Gen) does not.
- you can run a single Ethernet cable to the door
PoE on the Aqara Doorbell Camera G400 (Wired) carries power and data in one cable, which the Google Nest Doorbell (wired, 3rd Gen) cannot do.
- + Price: $99.99
- + Connectivity: 2.4 GHz WiFi, 5 GHz WiFi, Ethernet
- + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant
- - Rating: 4.2 vs 4.4
- + Rating: 4.4
- - Price: $196.81 vs $99.99
- - Connectivity: 2.4 GHz WiFi, 5 GHz WiFi vs 2.4 GHz WiFi, 5 GHz WiFi, Ethernet
What owners say
Aqara Doorbell Camera G400 (Wired) owners repeat two themes: native HomeKit Secure Video that opens fast in the Apple Home app, and PoE, which combines data and power in one cable and ends battery maintenance. They call the 3:4 view a genuine fix for the parcel problem and rate RTSP and ONVIF for NVR use, while complaining about the quiet bundled chime, subscription-gated package and face detection and a transformer that sometimes needs upgrading. Google Nest Doorbell (wired, 3rd Gen) owners love the 2K HDR image, the smart alerts that correctly separate people, packages and vehicles, and a Live View that loads almost instantly, but they are surprised that continuous history, longer event storage and familiar-face alerts sit behind Nest Aware, and they note the unit ships without a chime.
Frequently Asked Questions
Which is better overall: Aqara Doorbell Camera G400 (Wired) or Google Nest Doorbell (wired, 3rd Gen)?
The Aqara Doorbell Camera G400 (Wired), for buyers who want local recording and the widest platform support, including HomeKit and RTSP. The Google Nest Doorbell (wired, 3rd Gen) wins on image processing and on-device alerts if you are already a Google household, but most saved history needs Nest Aware.
What is the biggest difference between the Aqara Doorbell Camera G400 (Wired) and the Google Nest Doorbell (wired, 3rd Gen)?
Storage and ecosystem. The Aqara Doorbell Camera G400 (Wired) records locally to microSD with no subscription and supports HomeKit, RTSP and PoE, while the Google Nest Doorbell (wired, 3rd Gen) is cloud-first, needs Nest Aware for continuous history and works best inside Google Home.
Does the Google Nest Doorbell (wired, 3rd Gen) need a subscription?
Not for basic use. You get free event clips from the past six hours and a one-hour offline buffer. But continuous 24/7 video history, longer event storage and familiar-face alerts require a paid Nest Aware subscription.
Does the Aqara Doorbell Camera G400 (Wired) work with Google Home?
Yes. The Aqara Doorbell Camera G400 (Wired) streams a live view to Google Home as well as Alexa and SmartThings displays, on top of its native Apple HomeKit, Home Assistant, RTSP and ONVIF support.
Who should buy the Aqara Doorbell Camera G400 (Wired)?
Apple Home users, anyone with PoE or 8-24V wiring at the door, and buyers who want local recording with no subscription and the broadest set of integrations.
Who should buy the Google Nest Doorbell (wired, 3rd Gen)?
Google and Nest households that want sharp 2K HDR video and the most accurate on-device smart alerts in this class, and who are willing to pay for Nest Aware to keep their video history.
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