Home security has a new benchmark for smart surveillance. Meet the new eufyCam S4: a cutting-edge hybrid security camera that redefines what’s possible in smart home surveillance. This camera is built for today’s evolving security needs. The eufyCam S4 blends a fixed 4K bullet lens with a powerful 2K dual-lens PTZ (pan-tilt-zoom) system to give you both the wide-angle perspective and the zoomed-in detail, all in one seamless experience.
The bullet lens is like your constant guardian. It can monitor key areas like driveways and front doors with clarity that stretches up to 29 feet. Meanwhile, the PTZ camera is always ready to track, tilt, and zoom with AI precision, scanning broader zones and keeping tabs on what matters most.
Reliable Power and Strong Deterrence
Want uninterrupted security? The detachable solar panel has you covered and it’s eufy’s most efficient yet. You can fully charge the camera with just an hour of direct sun. Built with edge-sealed durability and ETFE film for weather resistance, it’s made for real-world reliability.
And if someone unwelcome shows up? The S4 jumps into action with dual motion detection (radar + PIR) and filters out the noise and homes in on real threats. Red and blue warning lights flash, and a 105dB siren roars into action. It’s an instant, unmistakable deterrent.
Smarter Surveillance with Local AI Agent

At the heart of it all is eufy’s Local AI Agent, powered by the world’s first Qualcomm 4nm AI chip. This system is a powerhouse. It detects, analyzes, and responds to more than 100 real-world risks, including loitering, package theft, fire hazards, and wild animals. It thinks, adapts, and acts.
Here’s how it works: When the bullet camera spots something unusual, the PTZ unit jumps into action by locking on and tracking targets with AI Tracking 2.0. Whether it’s a single person walking across your yard or a group moving down the street, the camera intelligently auto-frames and adjusts, zooming in up to 50 meters or pulling back to capture the whole scene.
Built for Privacy, Powered by AI Core
This level of intelligence is thanks to the AI Core, which enables large-model processing directly on-device. With both a Fast Path for immediate responses and a Deep Path for complex reasoning, your eufyCam S4 balances speed and smarts like never before. Best of all? Everything is stored locally, so your data stays private.