Functionality: Mini doorbells often include features like a camera for video recording (some with HD or even 2K resolution), night vision for clear viewing in low light, and two-way audio for communication with visitors.
Connectivity: Many are wireless and connect to your home Wi-Fi network, allowing for remote monitoring and interaction via a dedicated smartphone app (e.g., Tuya SmartLife App).
Features: Beyond basic doorbell functions, they may offer motion detection with alerts, cloud or local storage for recordings, and sometimes even AI human detection to reduce false alarms.
Power & Installation: Typically battery-powered for easy, wire-free installation, though some models may offer wired options. They are designed for simple setup and can often be mounted with adhesive or screws.