Doorbells · Head to head

Aqara Doorbell Camera G400 (Wired) vs Google Nest Doorbell (wired, 2nd Gen)

Full Smart Doorbells comparison in 2026

Updated October 2026
Data from the official Aqara and Google sites.
2026 verdict
Apple Home or Google Home? The Aqara Doorbell Camera G400 (Wired) is the stronger wired video doorbell of this pair and the lower priced one.
Aqara Doorbell Camera G400 (Wired)
Winner
Aqara Doorbell Camera G400 (Wired)
$99.99
Buy on Amazon USA
It records 2K video 24/7 to a microSD card with NAS backup, adds PoE and Ethernet, supports HomeKit Secure Video alongside Google Home, Alexa, SmartThings and Home Assistant, includes a chime and offers voice changing and quick replies. The Google Nest Doorbell (wired, 2nd Gen) is the better reviewed of the two and gives free on-device alerts for people, packages, animals and vehicles, HDR video, four finishes and three hours of free event history, but 24/7 recording needs Nest Aware and it has no Apple Home support. Pick the Aqara for Apple Home or local recording, and the Google Nest Doorbell (wired, 2nd Gen) for a Google home that wants smart alerts with nothing to set up.
Works with
Connectivity
  • Wi-Fi 2.4/5 GHz
  • Ethernet
vs
Works with
Connectivity
  • Wi-Fi 2.4/5 GHz
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FeatureAqara Doorbell Camera G400 (Wired)Google Nest Doorbell (wired, 2nd Gen)Winner
Price$99.99$154.10Aqara Doorbell Camera G400 (Wired)
Rating4.24.3Google Nest Doorbell (wired, 2nd Gen)
Connectivity2.4 GHz WiFi, 5 GHz WiFi, Ethernet2.4 GHz WiFi, 5 GHz WiFiAqara Doorbell Camera G400 (Wired)
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home AssistantGoogle Home, Alexa, Samsung SmartThings, Home AssistantAqara Doorbell Camera G400 (Wired)
Voice ChangingYESNOAqara Doorbell Camera G400 (Wired)
Automatic RepliesYESNOAqara Doorbell Camera G400 (Wired)
Warranty1 year1 yearTie
StorageMicroSD Card Slot, CloudInternal, CloudTie
AlertsMotion, People, Packages, Animals, Vehicles, Familiar FacesMotion, People, Packages, Animals, Vehicles, Familiar FacesTie
Customizable Motion ZonesYESYESTie
Indoor Custom RingtoneYESYESTie

What the differences mean

Recording without a plan

The Aqara Doorbell Camera G400 (Wired) records 24/7 to a microSD card of up to 512 GB and backs up to a NAS. The Google Nest Doorbell (wired, 2nd Gen) keeps event clips from the past three hours plus a one hour offline buffer, and 24/7 history needs Nest Aware.

Smart alerts

The Nest identifies people, packages, animals and vehicles on the device for free. The Aqara detects motion and people for free and puts packages, animals, vehicles and faces behind its HomeGuardian plan.

Apple Home

The Aqara supports HomeKit Secure Video, with live view and recordings in the Home app. The Nest has no Apple Home support and is set up in the Google Home app.

Video

The Aqara records 2K at 1536 by 2048 over a 165 degree view. The Nest records HD at 960 by 1280 with HDR over 145 degrees, both in a tall frame that shows visitors head to toe.

Power and chime

The Aqara can run on PoE over one Ethernet cable or on doorbell wiring, and a chime comes in the box. The Nest uses doorbell wiring only, with no chime included.

Which one to buy if

What owners say

Owners of both wired doorbells describe quick installs on existing wiring and fast alerts. Aqara Doorbell Camera G400 (Wired) owners lead with Apple Home, calling live view in the Home app almost instant, and they praise PoE, the tall 3:4 frame and the RTSP feed for a NAS. Google Nest Doorbell (wired, 2nd Gen) owners single out notifications that arrive in seconds, package alerts that also flag a parcel being picked up, and ringing through Google speakers and a Nest Hub. The complaints do not overlap. Aqara owners say the bundled chime is too quiet, the transformer is fussy and night vision is black and white only, and some see delayed motion alerts. Nest owners find the wiring screws tiny and fiddly, miss a chime in the box and note that 24/7 history and familiar faces need Nest Aware.

Frequently Asked Questions

Which is better overall: Aqara Doorbell Camera G400 (Wired) or Google Nest Doorbell (wired, 2nd Gen)?

The Aqara Doorbell Camera G400 (Wired). It adds 2K video, free 24/7 microSD recording, PoE, HomeKit Secure Video and a chime in the box. The Google Nest Doorbell (wired, 2nd Gen) is better for a Google home that wants free smart alerts.

What is the biggest difference between the Aqara Doorbell Camera G400 (Wired) and the Google Nest Doorbell (wired, 2nd Gen)?

Where the video lives. The Aqara Doorbell Camera G400 (Wired) records 24/7 to microSD for free, while the Google Nest Doorbell (wired, 2nd Gen) keeps three hours of events and needs Nest Aware for continuous history.

Does the Aqara Doorbell Camera G400 (Wired) work with Google Home?

Yes. The Aqara Doorbell Camera G400 (Wired) streams live view to Google Home, Alexa and SmartThings displays and also supports HomeKit Secure Video and Home Assistant. The Google Nest Doorbell (wired, 2nd Gen) works with Google Home, Alexa, SmartThings and Home Assistant but not Apple Home.

Can the Aqara Doorbell Camera G400 (Wired) run on PoE?

Yes, it takes IEEE 802.3af PoE over one Ethernet cable, or 8-24V doorbell wiring. The Google Nest Doorbell (wired, 2nd Gen) runs on doorbell wiring only and has no Ethernet port.

Who should buy the Aqara Doorbell Camera G400 (Wired)?

Apple Home users and anyone who wants free 24/7 local recording, PoE and RTSP for Home Assistant or an NVR.

Who should buy the Google Nest Doorbell (wired, 2nd Gen)?

Google Home and Nest Hub households that want accurate free alerts for people, packages, animals and vehicles and a finish that matches the door.

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