UniFi Protect G4 Doorbell is a Wi-Fi video doorbell with a built-in display and real-time two-way audio communication.
The camera features a high-quality 5MP sensor with enhanced night vision. Image streams can be viewed in up to 1600x1200 (2MP) HD at 30 FPS. UniFi Protect G4 Doorbell includes a PIR sensor for instant motion detection alerts. Integration with UniFi Protect provides an easy-to-use interface.
You will need one of the UniFi Protect NVR devices listed below which allows you to host your own recordings so you won't need a contract for a cloud account.
UCK-G2-SSD UniFi Protect Video Controller and Recorder
UniFi Dream Machine Pro Gateway, Controller and Recorder
Model UVC-G4-DOORBELL by Ubiquiti Networks 
