Hiyd is a health tracker that attaches to the watch you already wear

Hiyd is a health tracker that attaches to the watch you already wear

Former Apple engineers figured out how to get a biometric sensor to attach to your watch without any magnets or adhesives.

techcrunch.com/2026/10/14/hiyd-is-a-health-tracker-that-attaches-to-the-watch-you-already-wear/