# eufy Security eufyCam S4 Review **Selling Point:** You're saving $80 on a premium dual-lens 4K security camera with solar charging, eliminating battery replacement hassles while delivering professional-grade features like 360° tracking and 164ft zoom. **Trade-offs:** The fixed 130° main lens limits coverage compared to pan-tilt alternatives, solar charging may be slow in low-light climates, and the premium price point is still relatively high even at discount, plus you'll need the full eufy ecosystem for optimal functionality. **Verdict:** Buy if you value solar convenience and 4K quality for a fixed monitoring spot; Pass if you need flexible pan-tilt coverage or operate in consistently cloudy areas where solar underperforms.