A recovery score is the single readiness number your wearable spits out each morning. It's built mostly from heart rate variability, resting heart rate, and how long and how well you slept, weighed against your recent training strain. A high score means your nervous system looks rested and ready for hard work. A low score suggests your body is still paying off yesterday.
Why it matters
Fitness comes from stress plus recovery, and most people only track the stress half. A recovery score makes the other half visible. When it trends down for days in a row, that's real information: you're probably under-sleeping, fighting something off, or training past what you're absorbing. The trap is treating one bad morning like a diagnosis. These scores are estimates built from proxies, and they get thrown off by a late meal, a drink, or a warm bedroom. Trends matter. Single days mostly don't.
How to use it in training
Check the weekly pattern, not the daily number. Three or four low mornings in a row is a cue to pull back volume or sleep more. One low morning before a planned session? Warm up and see how the first working sets feel. Your legs get a vote.
And run the check in both directions. Feel great but score low for a week? Trust your performance. Feel flat but score high? Look at stress and food before blaming the watch.
Related terms
Go deeper
Curious what HRV actually measures and how solid the science is? Read our full breakdown: Heart rate variability and training.