WiFi sensing vs cameras
WiFi CSI vs cameras — sensing mechanism, data payload, latency, coverage geometry, and when each modality fits occupancy vs identification tasks.
WiFi CSI Sensing vs Cameras, Radar & Wearables
How WiFi CSI compares to other sensing modalities on mechanism, coverage, and deployment cost — not marketing checklists. For what CSI can detect, see the detection ladder .
By sensing mechanism
- WiFi vs cameras — visual vs radio channel measurement
- WiFi vs mmWave radar — commodity WiFi vs dedicated RF front-end
- WiFi vs PIR — infrared motion cone vs whole-room CSI
- WiFi vs wearables — device-free vs opt-in tracking
Background
How it works · Sensing pipeline · Use cases
WiFi sensing vs mmWave radar
WiFi CSI vs mmWave radar — RF front-end cost, ranging precision, fine-motion SNR, deployment scale, and when dedicated radar beats commodity WiFi.
WiFi sensing vs PIR
WiFi CSI vs PIR — infrared motion cone vs radio channel sensing, still-detection mechanism, coverage geometry, and why PIR false-offs happen.
WiFi sensing vs wearables
WiFi CSI vs wearables and MAC tracking — device-free body sensing vs opt-in device telemetry, coverage completeness, and data model differences.
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