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  "path": "/news/2026-04-sonar-stock-smartwatches-tracking-advancement.html",
  "publishedAt": "2026-04-06T12:40:05.000Z",
  "site": "https://techxplore.com",
  "tags": [
    "Consumer & Gadgets"
  ],
  "textContent": "Imagine tapping your thumb and index finger together twice to skip to the next song or clicking around your laptop or desktop computer without a mouse, using discreet finger motions. New first-of-its-kind wearable technology from researchers at Cornell and KAIST, in South Korea, brings that vision closer to reality. The system, called WatchHand, equips off-the-shelf smartwatches with AI-powered micro sonar capable of tracking hand movements.",
  "title": "Sonar on stock smartwatches leads to hand-tracking advancement"
}