The ONU Score: One Number, Built From Everything ONU Knows About You

A single score isn't a simplification for its own sake — it's meant to solve a specific problem: most people don't have time to interpret four separate charts every morning, so most people don't. A composite score converts a five-minute interpretation exercise into a five-second glance, with the full detail available underneath for anyone who wants it.

That said, the ONU Score is a directional wellness indicator, not a diagnostic measurement. It's designed to help you notice trends worth paying attention to — not to replace clinical testing or a conversation with a healthcare provider.

A lower-than-usual ONU Score isn’t a verdict — it’s a prompt to look at what’s driving it. ONU shows you the “why” behind every score change: maybe recovery dropped because of two short nights in a row, or stress climbed during a demanding week at work.

This is also why the ONU Score is more useful as a trend than a single reading. One low day after a late flight or a stressful meeting is normal. A steady decline over two or three weeks is the kind of pattern worth noticing early — which is the entire premise behind ONU’s prevention-first approach.

The ONU Score pulls directly from whatever you’ve connected — Apple Health, Whoop, or Garmin — so its accuracy depends on how consistently you wear a tracking device and how much data is available. If you’ve also uploaded lab results, ONU’s AI health engine uses that longer-horizon context — like a recent cholesterol or metabolic panel — to inform the interpretation layer around your score.

If you already use Whoop’s recovery score, Apple’s sleep data, or Garmin’s training status, you might wonder how the ONU Score relates to those. The short answer: it doesn’t replace them, it synthesizes them — pulling in whatever wearable data you have and adding context those platforms don’t have on their own, like your lab history or patterns across multiple connected devices. If you rely on the ONU Bracelet as your primary tracker, the ONU Score is built directly from its continuous heart rate, sleep, and stress-index data.

It’s worth being direct about the boundaries here: the ONU Score doesn’t predict specific illnesses, doesn’t replace lab testing or a physical exam, and isn’t a substitute for medical advice if you’re experiencing symptoms. It’s a wellness-trend indicator built to help you notice patterns early and have better-informed conversations with a healthcare provider — not a clinical assessment tool.