Hiyd is developing a small, slim disc that attaches to the back of a watch to track biometrics including heart rate, sleep quality, and calories burned. The device uses microsuction technology to adhere to the watch without magnets or adhesive, aiming to integrate health tracking seamlessly into users' existing accessories. The company plans to launch a Kickstarter in November.

Hiyd aims to bridge the gap between fashion and function in wearable technology by allowing users to track health metrics without compromising their watch choice, potentially expanding the market for health tracking devices.
Hiyd is developing a discreet health tracking device designed to attach to the back of existing watches, eliminating the need for users to wear separate fitness trackers. The small, slim disc utilizes microsuction technology, a textured silicone with micro-pockets that creates a vacuum seal without magnets or adhesive, ensuring it sits flush and leaves no residue. This approach allows users to maintain their preferred watch aesthetics while gaining access to biometric data. The sensor, measuring 2.7 mm thick and weighing 7 grams, collects metrics such as heart rate, heart rate variability, sleep staging, movement, calories burned, and VO2 max estimations. This data is then synced to a companion iOS or Android app. Hiyd is also training its AI to analyze activity data and plans to integrate nutrition tracking to offer personalized insights into how diet impacts sleep and performance. The company, co-founded by former Apple engineer Salah Batroukh, is set to compete at TechCrunch Disrupt's Startup Battlefield and plans a Kickstarter launch in November, having already secured over 16,000 deposits.
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