Both directions. Workouts, sleep, heart rate, HRV and breathing rate.
It never asks you to start it.
No session button, no reminder to put it on, no nightly charge. It reads continuously from the moment you fasten it, which is the only way a baseline that means anything gets built.
Charge it twice a month.
Two weeks of continuous heart rate on one charge. Long enough that you stop thinking about the battery, which is the point — a band on a charger measures nothing.
Two ways of reading the same heart.
Optical sensing runs all day. A second electrode records a single-lead ECG trace when you rest a fingertip on it. Recording, not diagnosing — if something looks unusual, the app tells you to see somebody who can actually say.
Nothing to look at.
There is no display, no notification, no buzz on your wrist mid-set. The band is a sensor. The reading, and the reasoning behind it, belong on a screen you were going to look at anyway.
Made to be worn, not stored.
Two colours of yarn woven together rather than a single flat dye. It takes sweat and chlorine without fading, dries flat in about twenty minutes, and does not look like gym equipment at a dinner.
Every score opens up.
Tap any figure and you get the readings behind it, the baseline each was measured against, how much of the score it carried, and what the day was missing. No other band shows you its working.
It measures. The app explains.
