GoKawiilHiyd launches disc sensor that clips onto existing watches for health tracking
Startup Hiyd has built a thin, 7-gram sensor disc that attaches to the back of any watch using microsuction, a textured silicone material that creates a vacuum seal without magnets or adhesive. The device tracks metrics like heart rate, heart rate variability, sleep stages, movement, calories burned, and VO2 max, syncing data to a companion iOS or Android app. Founder Salah Batroukh says the team is training its AI by filming and labeling their own activities, such as walking, jogging, and running.
GoKawiil's interpretation of the reporting above, not reported fact.
The product targets a niche of consumers who want fitness tracking without giving up traditional or luxury watches, potentially opening a new wearables category distinct from smartwatches. Its reliance on self-recorded training data suggests the AI model is still in early development, which could affect accuracy claims compared to established wearable brands. Success may hinge on whether microsuction attachment proves durable and reliable for everyday wear.
- Hiyd's sensor attaches to existing watches via microsuction rather than magnets or adhesive
- The 2.7mm, 7-gram disc tracks heart rate, sleep, movement, calories, and VO2 max
- Hiyd trains its activity-recognition AI using self-filmed and labeled data sets
Source: techcrunch.com — Amanda Silberling, 2026-10-14
Published there as: “Hiyd is a health tracker that attaches to the watch you already wear”
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