Eufy EufyCam S4 Review
EufyCam S4 is a strong choice for premium perimeter coverage where one mounting point must supply overview, zoom and active tracking, provided the camera is expensive and complex.
At a Glance
A fixed 4k overview and two motorized 2k lenses deliver unusually complete coverage, excellent day/night detail and strong tracking without requiring a subscription. The main compromise is that the camera is expensive and complex, while review testing found fiddly motion-zone setup and occasional live-view switching quirks.
Technical Assessment
The fixed 4K overview and dual-lens PTZ module can watch a broad scene and track detail from one mount. Standalone storage and AI keep the base configuration self-contained, while direct power and HomeBase S380 unlock continuous recording and deeper system features at additional cost.
Features and Workflow
The feature set combines Direct Connection: Can operate standalone over Wi-Fi or connect through HomeBase S380, Local Storage: 32 GB built in; microSD expansion up to 256 GB, and Limited Warranty: 12-month US warranty for security cameras. Together, these capabilities support more complete day-to-day workflows and reduce reliance on a single headline specification.
Reliability and Ownership
Multi-week testing reported effective solar charging and dependable motion tracking. The main cautions were configuration complexity and occasional live-view lens switching, not missed basic recording.
Buyer Fit and Trade-Offs
Best For & Key Strengths
Best For
- premium perimeter coverage where one mounting point must supply overview, zoom and active tracking
Key Strengths
- Fixed overview plus dual PTZ lenses
- Excellent day and night image quality
- Local storage and solar operation
Not Ideal For & Key Trade-Offs
Not Ideal For
- budget buyers or anyone wanting a compact, simple camera
Key Trade-Offs
- High purchase price
- Bulky and complex to configure
- Motion-zone setup is fiddly
Technical Specifications
| 0 | 4K fixed bullet lens plus dual 2K PTZ lenses |
| 1 | 360° tracking |
| 2 | 8× hybrid zoom |
| 3 | Solar charging and optional direct power |
| Spec 1 | 4K fixed bullet lens plus dual 2K PTZ lenses |
| Spec 2 | 360° tracking |
| Spec 3 | 8× hybrid zoom |
| Spec 4 | Solar charging and optional direct power |
| Video Resolution | Fixed bullet lens: 3840×2160; dual PTZ lenses: 2688×1520 each |
| Image Sensors | 1/2.8-inch stacked CMOS for the fixed camera and 1/3-inch CMOS for PTZ |
| Field Of View | Fixed: 130° diagonal/107° horizontal/57° vertical; PTZ wide: 121°/102°/54°; PTZ tele: 46°/40°/23° |
| Zoom | 8× hybrid zoom |
| Weather Rating | IP65 |
| Dimensions | 92 × 164.5 × 165 mm; 305 mm high with top-mounted solar panel tilted 45° |