Aqara Video Doorbell G4: problems, parts and running costs
Checked: 2026-10-04
Summary
The Aqara Smart Video Doorbell G4 is a 1080p battery-or-wired doorbell whose usual catches are battery life and storage. Six AA cells are rated at about 4 months only under Aqara’s own 35-wake-ups-and-one-6-second-clip-a-day test assumption, and 24/7 recording needs both a wired install and a microSD card that sits inside the indoor chime repeater [2][3]. No non-Amazon price was found in the research, so judge it on local facial recognition and free 7-day event storage rather than the headline battery figure [3].
Common problems and fixes
- Battery life falls short of four months — Aqara’s own FAQ is built around “Why is my battery life so short?”, and the “about 4 months” rating assumes only 35 wake-ups and one 6-second clip a day, so a busy door drains faster [3][4]. Fix: turn on power saving mode and lower motion sensitivity; the doorbell takes standard AA cells, so this is a usage limit rather than a warranty claim [3].
- 24/7 recording does not work on battery — continuous recording requires both a wired 12–24 V AC / 8–24 V DC install and a microSD card, while battery power alone records events only [3]. Fix: wire the transformer and fit a card. [2][3]
- The microSD slot is in the chime repeater — the card sits in the indoor repeater, not the doorbell, and the card is not included, so retail copy that says the doorbell supports 512 GB misleads about installation [2][3]. Fix: budget for a card and keep the repeater near the router.
- No Matter support — the G4 had no Matter support at launch despite Aqara’s brand-level smart-home marketing [3]. Workaround: use Apple Home including HomeKit Secure Video, Amazon Alexa or Google Home, which it does support [3].
- SMB NAS support was not confirmed at launch — the press release lists SMB NAS storage but footnotes that it may not have been available at launch, and current availability was not verified [3]. Workaround: use the free 7-day event-clip cloud or a microSD card.
- The 162° figure is a subtended angle — it is the diagonal wide-end value on the spec page, so comparing it directly with another brand’s horizontal field of view overstates coverage [2].
- Facial recognition accuracy is untested — Aqara says recognition runs locally on the device but publishes no accuracy data for poor light or the edge of the frame [3].
Parts and consumables
- Six AA 1.5V LR6 batteries — the main consumable; Aqara rates them at about 4 months under its test assumption, and the doorbell takes standard cells rather than a proprietary pack [2][3]. No price was found in the research.
- microSD card (up to 512 GB) — not included, and required for local and 24/7 recording; the slot is in the chime repeater [2][3]. No price was found in the research.
- 20° wedge bracket — included in the box for mounting rather than sold as a replacement part [2].
Yearly running cost
Not enough data. No non-Amazon price was found in the research for the six AA batteries or a microSD card, and the 7-day event-clip cloud tier is subscription-free, so a yearly figure cannot be computed from the sources [2][3]. The documented recurring items are the AA cells and any third-party cloud storage, for example iCloud, which is billed separately by that provider [3]. Battery use itself depends on door traffic and power saving mode [3].
When it is a good buy
No non-Amazon price was found in the research, so no dollar threshold can be given. Buy it for what it does that most battery doorbells in its class do not: on-device facial recognition usable as an automation trigger, HomeKit Secure Video on a battery-powered doorbell, and subscription-free 7-day event-clip storage [3]. If you need 2K video and a Matter hub function, the Aqara Doorbell Camera Hub G410 is the better choice; if you want a wired-only 2K unit, the Aqara Doorbell Camera G400 is [4]. Anyone who needs continuous recording has to wire the doorbell and fit a microSD card, whichever option they pick [3].