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eufyCam S3 Pro Add-on Camera
Eufy•$250-500•Reviewed Jan 2026
4K battery cam with SolarPlus 2.0 positioning and radar+PIR motion detection, aimed at reducing false alerts.
Quick verdict
Local-first
7/10
Subscription
optional
Power
BATTERY
Storage
NVR, CLOUD
Specifications
Power
BATTERY
Connectivity
Wifi
Storage
NVR, CLOUD
Resolution
4K (full detail format/fps not listed on captured lines)
Night Vision
unknown (not listed on manufacturer page snapshot)
Lens
unknown (not listed on manufacturer page snapshot)
Field of View
H: unknown, V: unknown
Protocols
HomeKit
Reality Notes
Notes are curated and may change as firmware and policies evolve.
Radar + PIR positioning is about reducing false alerts
performancehigh
Eufy markets S3 Pro’s dual motion detection (radar plus PIR) as a way to cut down false alerts and focus notifications on meaningful human movement, which may matter more than raw resolution in busy areas.
Overview
Higher-end battery camera designed for long-term outdoor placement with solar charging options and more selective motion detection, typically used as part of a HomeBase-based system.
We strive to provide accurate information.