Comment on WiFi signals can measure heart rate—no wearables needed
yucandu@lemmy.world 2 days agoI think they mean without a phone. A 2.4ghz radio can be used as a presence detection radar.
Comment on WiFi signals can measure heart rate—no wearables needed
yucandu@lemmy.world 2 days agoI think they mean without a phone. A 2.4ghz radio can be used as a presence detection radar.
theunknownmuncher@lemmy.world 2 days ago
It sounds like they’re specifically talking about a phone, making reference to app permissions and TikTok.