eufy

eufy Video Doorbell S4

The eufy Video Doorbell S4 is a next-generation panoramic smart doorbell featuring a 180° x 180° wide-angle 3K camera paired with OmniTrack AI — a motorized tracking system that actively follows visitors across the full frame, eliminating blind spots without requiring multiple cameras. Multi-sensor motion detection combines radar (up to 78 feet), passive infrared (up to 24 feet), and AI-powered subject recognition to trigger alerts before a visitor even enters the camera frame. On-device facial recognition identifies known faces at up to 5 meters and stores all data locally on 64GB of built-in eMMC storage, so no subscription or cloud account is required. Dual-band WiFi 6 ensures fast, reliable streaming, and the doorbell supports both battery (45–60 day life) and hardwired installation. It is compatible with Amazon Alexa, Google Home, and Samsung SmartThings.