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Wavey uses WiFi Channel State Information to sense motion, presence, and activity without requiring dedicated hardware. This page compares WiFi CSI to the four most common alternatives on mechanism, coverage geometry, and deployment cost. For what CSI can detect, see the detection ladder.

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 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.
For a task-level view of what WiFi CSI can detect, see the detection ladder.