The eufyCam S4 is a revolutionary triple-lens bullet-PTZ security camera that replaces both traditional bullet and PTZ cameras with a single intelligent solution. Its 4K bullet lens provides a 130° fixed wide-angle view, while the 2K dual-lens PTZ module offers 360° smart tracking with auto-framing that locks onto subjects up to 164 ft away and adjusts to keep multiple people in frame. Powered by a 5.5W ultra-large solar panel and SolarPlus 2.0, it requires just one hour of direct sunlight daily to stay charged, and its detachable panel design makes installation flexible. When connected to HomeBase S380, it unlocks BionicMind AI for person recognition, supports 24/7 recording, and includes 16 GB of built-in storage expandable to 16 TB. The eufyCam S4 also features radar and PIR sensors for precise motion detection, plus deterrent features like red and blue warning lights and a 105 dB siren to scare off intruders.