Small changes in sleep, movement, and heart rate are happening all the time. Some of them matter. Nura listens — quietly, day and night, without asking anything of you. It learns what's normal for you specifically, and notices when something shifts. Early enough to start a conversation.
Often the first thing to change.
Sleep is usually the first part of a routine to shift, and it shifts before anyone thinks to mention it. Nura learns their usual pattern — when they fall asleep, how settled the night is, how consistent it is week to week — and notices when it moves.
The shape of a normal day.
Not step counts. How much someone moves, when, and at what pace — the ordinary rhythm of their day. A week that looks quieter than the weeks before it is the kind of change worth knowing about.
A signal that's easy to miss.
No wrist device can measure hydration directly, and Nura doesn't claim to. Nura reads hydration risk from resting heart rate, heart rate variability and skin temperature together. Thirst becomes less reliable with age, which is exactly why a quiet passive signal helps.
The heart tells the truth early.
Resting heart rate creeping up by a few beats over two weeks tells a story a single reading never could. Nura follows it against their own baseline, not a population average.
Small shifts, seen in context.
Nura learns each person's own temperature rhythm across days — including how it moves with their body clock — and notices when it shifts and stays shifted. Not measured against a fixed number. Measured against them.
Their range, not a threshold.
Nura reads blood oxygen saturation at the wrist and learns each person's typical range, reporting changes relative to that rather than against a fixed cutoff.
