Aqara G400 Wired Video Doorbell Review (2026): A Spec-Based Look

What stands out

• 2K HD resolution with a 165-degree 3:4 aspect ratio for head-to-toe vision.
• Supports PoE or 8–24V AC/DC wiring for consistent power without batteries.
• Local AI person recognition and zone intrusion detection reduce false alarms.
• 940nm infrared LEDs provide near-invisible night vision without glowing light.
• IP65 weatherproof rating with included wedge kit and plug-in chime.

Who it fits

Aqara G400 Key Specs Explained

2K HD resolution

This camera captures video at a higher clarity level than standard 1080p models. You will see sharper details on faces and package labels. The 165-degree field of view covers a vertical 3:4 area, showing your entire doorway and the ground below. This perspective helps you identify who is at the door and what was left there. Compare this to 16:9 cameras that often miss packages near your feet.

940nm infrared LEDs

These night vision lights emit infrared light that is nearly invisible to the human eye. Standard 850nm LEDs create a visible red glow when active. The 940nm technology allows the doorbell to record clear footage in total darkness without alerting visitors or disturbing neighbors. This feature ensures discreet monitoring around the clock. It is ideal for users who prioritize privacy and do not want a visible red light signaling recording activity.

PoE, 8–24V AC/DC power

You can power this device through a Power over Ethernet connection or use existing doorbell wiring. PoE provides a stable internet connection and power through a single cable. The 8–24V AC/DC option allows you to reuse old wires, simplifying installation. This flexibility suits both new constructions and older homes. Hardwired power ensures the doorbell never runs out of battery, offering consistent performance without maintenance interruptions.

165° field of view

This ultra-wide angle lens captures a broad vertical slice of your entrance. It minimizes blind spots around the door frame. You can see visitors from head to toe and packages on the porch. Traditional doorbells often have narrower views that miss peripheral activity. This wide perspective ensures you do not miss deliveries or guests approaching from the side. It provides a complete view of the immediate entryway area.

MicroSD, iCloud storage

You can save video locally to a microSD card or use iCloud for HomeKit Secure Video. Local storage keeps footage on your premises, offering quick access without cloud fees. iCloud storage provides encrypted backups and seamless integration with Apple devices. This dual option lets you choose between offline access and cloud redundancy. Compare this to models that only offer cloud subscriptions or lack local backup options entirely.

Design and Build Overview

The Aqara G400 Wired Video Doorbell measures 5.55 inches in length, 2.08 inches in width, and 1.24 inches in height. It weighs 5.76 ounces. These dimensions suggest a compact form factor that fits standard doorbell spaces. The listing notes it includes a wedge kit for optimal positioning. This allows you to adjust the angle without complex mounting tools. The device is built for outdoor use with an IP65 rating. This means it resists dust and water jets. You can install it in areas exposed to wind or rain without worry.

According to the listing, the power source supports both PoE and 8–24V AC/DC wiring. This flexibility simplifies installation for existing setups. You can reuse old wiring or use Ethernet for stability. The unit connects via Wi-Fi 6 on both 2.4GHz and 5GHz bands. It meets WPA3 security standards. This ensures your connection remains secure and reliable. The design prioritizes function over flashy aesthetics. The infrared LEDs are nearly invisible. This discreet look avoids alerting visitors or neighbors during night recording. The finish appears utilitarian, focusing on durability and weather resistance. You get a plug-in chime for indoor alerts. This completes the basic hardware package for a wired installation.

Setup and Everyday Use

The Aqara G400 supports PoE or standard 8–24V AC/DC wiring, allowing you to reuse existing doorbell circuits. It connects via dual-band Wi-Fi 6, supporting both 2.4 GHz and 5 GHz bands with WPA3 security. This setup ensures stable video transmission without frequent disconnects. The package includes a plug-in chime for indoor alerts and a wedge kit to adjust the viewing angle. For storage, you can insert a microSD card up to 512 GB for local 24/7 recording. The device also backs up local footage to an SMB-compatible NAS server, keeping your video secure without relying solely on cloud services. In daily use, the doorbell integrates with Apple HomeKit Secure Video, Alexa, Google Assistant, and SmartThings. HomeKit users benefit from encrypted recording and iCloud storage, though resolution limits to 1200p in this ecosystem. The local AI detection reduces false alarms by recognizing people and zones without cloud processing. You receive instant notifications when motion is detected. The intercom allows you to answer safely using custom quick replies or voice-changing features. Night vision relies on nearly invisible 940nm infrared LEDs, providing clear video in total darkness without disturbing neighbors. The IP65 rating ensures reliable operation in wind and rain, making it suitable for outdoor installation year-round.

Before You Buy This Doorbell

You need an Apple home hub and an iCloud+ plan to use HomeKit Secure Video. Without these, you cannot access encrypted recording or real-time notifications on your Apple devices. The device also supports Alexa, Google Assistant, and SmartThings, but features vary by ecosystem. You must check if your existing wiring supports 8–24V AC/DC or if you prefer PoE. A microSD card up to 512GB is not included for local storage, so you need to purchase one separately. If you want continuous recording, ensure you have a compatible NAS server for SMB backup. The included plug-in chime provides indoor alerts, but you may want additional indoor displays like the MagicPad for live views. This model fits well if you prioritize privacy and local processing over cloud subscriptions. It suits users who want detailed specs and flexible power options compared to simpler wireless models.

Check before you buy

• Confirm you have an Apple home hub for HomeKit Secure Video.
• Verify your existing doorbell wiring supports 8–24V AC/DC or PoE.
• Purchase a microSD card up to 512GB for local storage.
• Check if your NAS server supports SMB for video backup.

The product at a glance

1

Aqara G400 Wired Video Doorbell

Best for: HomeKit users with wired power options

Video Resolution

2K HD

Power Source

PoE, wired 8–24V AC/DC

Field of View

165°

Storage Type

MicroSD (up to 512GB), cloud

Night Vision

940nm infrared LEDs

Connectivity

2.4GHz and 5GHz Wi-Fi 6

View on Amazon: Aqara G400 Wired Video Doorbell Affiliate link

The Aqara G400 is a wired video doorbell supporting PoE or 8–24V AC/DC power. It records in 2K HD with a 165° field of view. The device uses 940nm infrared LEDs for night vision and supports Wi-Fi 6. It works with Apple HomeKit Secure Video, though resolution drops to 1200p on that platform. It also stores footage on microSD cards up to 512GB or via NAS backup. This model suits users wanting local processing and HomeKit integration.

Pros

• 2K HD resolution with a 165° ultra-wide field of view
• Supports PoE or existing 8–24V AC/DC wiring
• Compatible with Apple HomeKit Secure Video for encrypted iCloud storage
• Local AI detection reduces false alarms without cloud processing
• IP65 weatherproof rating for outdoor durability

Cons

• Resolution limits to 1200p when used with Apple HomeKit
• Requires iCloud+ plan and Apple home hub for HomeKit Secure Video
• MicroSD card up to 512GB is not included

Good fit if

• You already use Apple HomeKit and want secure video integration
• You prefer hardwired power via PoE or existing doorbell wiring
• You want local person detection to minimize cloud dependency

Skip if

• You need battery-only operation without wiring
• You want full 2K resolution within the Apple Home ecosystem
• You prefer a plug-and-play setup without network configuration

Verdict: Aqara G400 Wired Doorbell offers robust local processing and HomeKit compatibility for users with existing wiring. It fits those who value encrypted storage and wide-angle coverage, provided you accept the resolution trade-off on Apple devices.

Specifications side by side

Frequently asked questions

See also

• aqara doorbell camera g400 chime alternatives
• aqara smart doorbell camera chime vs g400 wired video doorbell
• aqara smart doorbell camera g410 review
• arlo chime 2 review