Doorbells · Head to head

Aqara Doorbell Camera G400 (Wired) vs Eufy Video Doorbell C31 (with Battery Pack)

Full Smart Doorbells comparison in 2026

Updated October 2026
Data from the official Aqara and Eufy sites.
2026 verdict
Completeness at the door favors the Aqara Doorbell Camera G400 (Wired) in this matchup, and it is the cheaper of the two.
Aqara Doorbell Camera G400 (Wired)
Winner
Aqara Doorbell Camera G400 (Wired)
$99.99
Buy on Amazon USA
On top of 2K video in a 3:4 head-to-toe frame, PoE, Ethernet and Wi-Fi 6, it is one of the few doorbells with native Apple HomeKit Secure Video, plus RTSP and ONVIF, and it records 24/7 to a microSD card of up to 512 GB with NAS backup. The Eufy Video Doorbell C31 (with Battery Pack) has one real edge, flexibility: a swappable battery, the option to hardwire and recording to a Eufy HomeBase if you own one. Pick the Aqara Doorbell Camera G400 (Wired) for a wired porch and subscription-free local recording, or the Eufy Video Doorbell C31 (with Battery Pack) if you need a battery doorbell and already own Eufy gear.
Works with
Connectivity
  • Wi-Fi 2.4/5 GHz
  • Ethernet
vs
Works with
Connectivity
  • Wi-Fi 2.4 GHz
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FeatureAqara Doorbell Camera G400 (Wired)Eufy Video Doorbell C31 (with Battery Pack)Winner
Price$99.99€89.99Eufy Video Doorbell C31 (with Battery Pack)
Rating4.23.9Aqara Doorbell Camera G400 (Wired)
Connectivity2.4 GHz WiFi, 5 GHz WiFi, Ethernet2.4 GHz WiFiAqara Doorbell Camera G400 (Wired)
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home AssistantGoogle Home, Alexa, Home AssistantAqara Doorbell Camera G400 (Wired)
AlertsMotion, People, Packages, Animals, Vehicles, Familiar FacesMotion, PeopleAqara Doorbell Camera G400 (Wired)
Voice ChangingYESNOAqara Doorbell Camera G400 (Wired)
Warranty1 year1 yearTie
StorageMicroSD Card Slot, CloudMicroSD Card Slot, CloudTie
Automatic RepliesYESYESTie

What the differences mean

Power and installation

The Aqara Doorbell Camera G400 (Wired) takes PoE or 8-24V wiring and has no battery at all, so it never needs charging but does need an existing circuit. The Eufy Video Doorbell C31 (with Battery Pack) runs on a quick-release battery or existing wiring, which is what makes it usable on a door with no power.

Smart home and streams

The Aqara Doorbell Camera G400 (Wired) covers HomeKit Secure Video, Google Home, Alexa, SmartThings and Home Assistant, and exposes RTSP and ONVIF. The Eufy Video Doorbell C31 (with Battery Pack) is limited to Google Home, Alexa and Home Assistant, with no HomeKit, Matter or RTSP.

Storage

Both record locally without a subscription. The Aqara Doorbell Camera G400 (Wired) accepts a microSD card of up to 512 GB and can back up to an SMB NAS, while the Eufy Video Doorbell C31 (with Battery Pack) takes up to 128 GB or records to a Eufy HomeBase.

Chime

A plug-in chime is included with the Aqara Doorbell Camera G400 (Wired), though owners often find it quiet. The Eufy Video Doorbell C31 (with Battery Pack) ships without one, so hearing it indoors means a Eufy chime bought separately or an Alexa or Google speaker.

Detection

The Aqara Doorbell Camera G400 (Wired) runs local motion and person detection and adds customizable zones and privacy masking. The Eufy Video Doorbell C31 (with Battery Pack) offers human and motion detection on device, with automatic replies, but no package, animal or vehicle alerts.

Which one to buy if

What owners say

Aqara Doorbell Camera G400 (Wired) owners praise the HomeKit Secure Video experience, the head-to-toe framing that captures a parcel on the step, and an install that often takes about fifteen minutes on existing wiring, and they call out RTSP for NVR users; their complaints are the quiet bundled chime, subscription-gated cloud AI and a transformer that sometimes has to be upgraded. Eufy Video Doorbell C31 (with Battery Pack) owners chose it to avoid a subscription and like recording to microSD or a Eufy HomeBase, with the 2K image and easy install getting credit, but they report battery life well short of the claim, late notifications and slow live view, no low-battery warning on battery and no chime in the box.

Frequently Asked Questions

Which is better overall: Aqara Doorbell Camera G400 (Wired) or Eufy Video Doorbell C31 (with Battery Pack)?

The Aqara Doorbell Camera G400 (Wired), for any door that has power. It offers 2K video, HomeKit Secure Video, PoE, Ethernet, Wi-Fi 6, RTSP and 24/7 local recording. The Eufy Video Doorbell C31 (with Battery Pack) only wins on flexibility, since it can run on a battery where the Aqara cannot.

What is the biggest difference between the Aqara Doorbell Camera G400 (Wired) and the Eufy Video Doorbell C31 (with Battery Pack)?

Power. The Aqara Doorbell Camera G400 (Wired) is wired-only, with PoE or 8-24V wiring and no battery, while the Eufy Video Doorbell C31 (with Battery Pack) runs on a rechargeable battery or wiring. That single fact decides which door each can go on.

Does the Aqara Doorbell Camera G400 (Wired) need a subscription?

No for the core features. Motion and person detection run locally and 24/7 recording works from a microSD card of up to 512 GB with optional SMB NAS backup. A HomeGuardian plan is only needed for cloud storage and the cloud AI detections such as package and face recognition.

Does the Eufy Video Doorbell C31 (with Battery Pack) work with Apple HomeKit?

No. The Eufy Video Doorbell C31 (with Battery Pack) supports Google Home, Alexa and Home Assistant but not Apple HomeKit or Matter, and it connects over 2.4 GHz Wi-Fi only.

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

Apple Home households, anyone with PoE or 8-24V wiring at the door, and buyers who want local recording with no subscription, a head-to-toe 3:4 view and RTSP for an NVR.

Who should buy the Eufy Video Doorbell C31 (with Battery Pack)?

Buyers with no wiring at the door who want a 2K battery doorbell and subscription-free recording, especially existing Eufy HomeBase owners who want one app for their cameras.

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