Quick verdict
The SNZB-06P brings mmWave presence detection to the budget tier. Unlike PIR sensors that only catch movement, this detects stationary occupants — great for keeping lights on while you're reading or working. It's not as sophisticated as the Aqara FP2 (no zone configuration), but at this price, it's a fantastic entry point into true presence detection.
Standout: Budget mmWave presence detection over Zigbee — detects people sitting still, not just walking by.
Last checked: 2026-03-25