The Xiaomi Smart Doorbell 3 functions as a door viewer and video intercom device that facilitates real-time viewing remotely as well as two-way communication via the integrated microphone and speaker. The main benefit is the 3MP camera. It can record videos in 2K resolution, provides an ultra-wide viewing angle of up to 180°, and is capable of detecting human presence with the help of in-built AI. The Xiaomi Smart Doorbell 3 features a 6-element lens system and is accompanied by 940nm infrared night vision which allows it to record clear videos even at nighttime. Carefree use is ensured by the integrated 5200 mAh battery in the external unit of the doorbell. Depending on use, it will last for 4 months.