Xiaomi Smart Doorbell 3

Xiaomi Smart Doorbell 3: 2K Ultra-Clear Video & 180° Head-to-Toe Doorstep View

The Xiaomi Smart Doorbell 3 (doorbell model MJML06-FJ with indoor chime MJJSQ04-FJ) provides complete apartment and home-entrance visibility with a 3-megapixel 2K sensor and an ultra-wide 180° diagonal lens (107° horizontal × 107° vertical) featuring a 4:3 vertical aspect ratio. Unlike narrow 16:9 doorbells that crop out packages or lower bodies, its vertical field of view captures visitors from head to toe as well as parcels placed on the floor directly in front of the door. Four high-power 940nm infrared lights and an f/2.0 aperture automatically activate in dim corridors and unlit stairwells without emitting a visible red glare.

5200mAh Long-Life USB-C Battery, AI Human Recognition & 79dB RF Chime

Designed for wire-free installation on apartment doors in Bangladesh where dedicated low-voltage doorbell wiring is unavailable, the Doorbell 3 houses a built-in 5200 mAh high-capacity lithium battery rated for up to 4.8 months of typical operation per charge via its USB Type-C (5V 2A) port. A PIR human body sensor works alongside AI human shape recognition to trigger 24-hour doorway monitoring and push real-time notifications to the Xiaomi Home app. Two-way audio communication includes a built-in voice changer (allowing users to disguise their voice as an adult male or clown for safety) plus customizable pre-recorded quick replies. The bundled indoor chime pairs over a dedicated 433 MHz RF radio link and rings at up to 79 dB across 4 volume settings even if household internet connectivity is temporarily offline.

Bangladesh Buyer Checklist

• Free Rolling 72-Hour Cloud Clips: Includes rolling 72-hour cloud storage of motion-triggered video clips via the Xiaomi Home app without requiring a microSD card inside the external unit.
• Anti-Theft Security Protections: Features a forced-removal siren alarm, 3M adhesive or screw-mount backplate, security locking screw, and one-to-one Xiaomi account binding.
• Indoor Corridor & Porch Placement: Operating temperature is rated from -10°C to 45°C; install in covered apartment corridors or sheltered porches away from direct monsoon rain.
• Catalog & Reference Links: Explore more cameras and security gear in the BiponiBD catalog or view the official Xiaomi Global Smart Doorbell 3 specifications.