Xiaomi Smart Doorbell 4 – 3MP HD Wireless Video Doorbell With Night Vision
The Xiaomi Smart Doorbell 4 brings clear, reliable video monitoring to your front door with 3MP HD resolution and infrared night vision. Whether it's daytime or pitch dark, this smart video doorbell captures sharp, detailed footage so you always know who's at your doorstep.
Designed as a wireless cat eye camera, it connects to your home's 2.4GHz Wi-Fi network and pairs with the Mi Home app for real-time alerts, live viewing, and remote access. There's no complex wiring involved. Installation is simple, using adhesive backing, so most users can set it up themselves in minutes.
With a wide 160° viewing angle and a long-lasting 5100mAh battery, the Xiaomi Smart Doorbell 4 is built for everyday home security, cutting down on blind spots at your entryway while reducing how often you need to recharge it.
Key Features
3MP HD Resolution With Infrared Night Vision: Delivers clear, detailed video around the clock, including complete darkness, so you never miss activity at your door.
160° Wide-Angle Lens: Captures a broader field of view, reducing blind spots and letting you see more of your doorstep in a single frame.
5100mAh Long-Lasting Battery: Keeps the doorbell running for extended periods without frequent recharging, ideal for uninterrupted home monitoring.
Mi Home App Integration: Get real-time alerts, live video, and remote access to your doorbell from anywhere, right from your phone.
Wireless & Easy Installation: Functions as a wireless cat eye camera with adhesive mounting, so there's no complicated wiring to deal with.
Compact, Lightweight Build: At just 0.5 kg and a compact footprint, it's easy to install, store, and ship without hassle.
Why Choose the Xiaomi Smart Doorbell 4
The Xiaomi Smart Doorbell 4 combines dependable night vision, a wide viewing angle, and long battery life into one easy-to-install package. Instead of relying on a traditional wired doorbell or a bulky standalone camera, you get a compact wireless solution that connects straight to your phone through the Mi Home app.
For homeowners and renters alike, this means better visibility at the front door, fewer missed visitors or deliveries, and peace of mind whether you're home or away. Its simple adhesive installation also makes it a practical choice for apartments where drilling or wiring isn't ideal.
Best Use Cases
Home entryways, for everyday visitor and delivery monitoring
Apartments and rented spaces, thanks to wireless, adhesive installation
Night-time security, with built-in infrared night vision
Remote homeowners who want live access via the Mi Home app
Technical Specifications
Specification | Detail |
|---|---|
Model Number | MJML04BY |
Brand | Xiaomi |
Resolution | 3MP HD |
Night Vision | Infrared |
Viewing Angle | 160° Wide Angle |
Connectivity | Wi-Fi (2.4GHz only, 5GHz not supported) |
Battery Capacity | 5100mAh |
Rated Input | 5V = 2A |
Power Source | DC (Battery Powered) |
Plug Type | US Plug |
Installation | Wireless, adhesive mount, almost ready to use |
Dimensions (Package) | 20 x 10 x 10 cm |
Weight (Package) | 0.500 kg |
Origin | Mainland China |
Version | Chinese (CN) version |
Compatibility
Works with the Mi Home app for setup, live viewing, and remote alerts. Requires connection to a 2.4GHz Wi-Fi network; 5GHz Wi-Fi networks are not supported. As a Chinese (CN) version device, buyers may need to set their Mi Home app region to Mainland China during setup.
Package Includes
Xiaomi Smart Doorbell 4 x1
Adhesive Mounting Backing
User Manual x1
Frequently Asked Questions
Does the Xiaomi Smart Doorbell 4 work in complete darkness?
Yes, it features infrared night vision that delivers clear video even with no ambient light.
What Wi-Fi network does this doorbell require?
It requires a 2.4GHz Wi-Fi network. It does not support 5GHz Wi-Fi networks, so make sure your router broadcasts a 2.4GHz band.
How long does the battery last?
It's equipped with a 5100mAh battery, offering extended operation between charges for reliable, uninterrupted monitoring.
Is installation difficult?
No, it installs using adhesive backing with no complex wiring. It's recommended to mount it at around 1.5 meters height and avoid metal surfaces for best adhesion.
Can I view footage remotely?
Yes, through the Mi Home app you get real-time alerts, live viewing, and remote access from anywhere with an internet connection.
Is this a Chinese version device?
Yes, this is the CN version. Buyers may need to set their Mi Home app to the Mainland China region during setup to connect properly.
What plug type does this listing include?
This listing includes a US plug adapter.
Get the Xiaomi Smart Doorbell 4 at the best price in Bangladesh from Geary BD, with fast delivery to Dhaka, Chittagong, Sylhet, Rajshahi, and Khulna, plus dependable warranty support.
