The Sevyn8 family
Most wearables read one spot on the body and keep the data to themselves. Sevyn8 is building a small family of devices that all feed the same personal baseline, so each one makes the others smarter.
Phase 1The everyday base. Worn around the clock, it learns your normal for recovery, sleep and activity.
It goes first because a ring is the easiest thing to wear every day, and it reaches the most people.
Phase 2An ultra-thin, flexible patch worn just behind the ear. Peel, place, and forget it's there.
It comes next because sleep happens in the head, and a finger only sees part of it.
Phase 3A thin patch worn on the chest, for the most precise read of your heart's rhythm over the day.
It comes later, once the ring and Mastoid are in people's hands, to sharpen the picture.
Behind every device
A rolling picture of your own normal, built over weeks. Every device is read against it.
Being built to read Apple Health and Health Connect data too, so the workouts and sleep already on your phone count from day one.
Every note passes a wellness check before it reaches you. It says what a signal suggests for your day, then stops.
Designed so raw signal stays on your device by default. You decide what leaves it.
Ring first, because it reaches the most people. Mastoid next, because it adds signals no finger can read. Chest Patch after, for precision.