A recovery score is one number that answers one question: should you push today? Whoop calls it Recovery, Oura calls it Readiness, Garmin calls it Body Battery and Training Readiness, Fitcoin calls it Recovery. Different names, different maths, same idea: measure your overnight physiology, compare it with your own baseline, and compress the answer into 0 to 100. This page is the vendor-neutral explainer: what goes in, how the big platforms differ, what a low score actually means, and where the whole concept quietly stops working.
If you specifically want the Whoop version dissected, that lives at Whoop Recovery explained. If your Whoop score is permanently in the red, go straight to Whoop Recovery always low.
Short verdict: Every recovery score is the same three or four overnight signals (HRV, resting heart rate, sleep, sometimes respiratory rate and temperature) weighed against your personal baseline. Trust the direction, not the integer. Two platforms will never print the same number, and neither of them is wrong.
Disclosure: Fitcoin is our product. We are not affiliated with Apple, Whoop, Oura, Garmin, Athlytic, Bevel or the other apps named here. Where Fitcoin appears, it is as a Sleep, Recovery and Energy companion that also scores workouts for partner rewards, not a PayPal cash-out app. Scores described below are wellness estimates for general fitness. They are not medical devices and they do not diagnose illness.
The question every recovery score answers
Training makes you fitter only if you recover from it. Push hard while your body is still repairing and you accumulate fatigue instead of fitness; back off when you were actually fine and you leave progress on the table. Coaches have judged this by feel for a century. Recovery scores are an attempt to judge it from data your wearable already collects while you sleep.
The core insight is that your autonomic nervous system leaks information overnight. When you are well recovered, heart-rate variability sits at or above your normal, resting heart rate at or below it, and breathing is steady. When you are carrying fatigue, fighting an infection, or metabolising last night's wine, HRV drops and resting heart rate climbs. None of these signals is decisive alone; combined and compared with your baseline, they are usefully predictive of how a session will feel.
The inputs, ranked by how much they matter
- Overnight HRV versus baseline. The loudest ingredient in almost every algorithm. Suppressed HRV relative to your own rolling average (typically two weeks to two months of history) is the classic fatigue signature. What HRV is and why raw values mislead is covered in HRV on Apple Watch explained.
- Resting heart rate versus baseline. A few beats above your normal overnight RHR is one of the most reliable everyday signals of incomplete recovery, illness or alcohol.
- Sleep. Duration always; quality and consistency in the better models. Whoop compares sleep you got with a modelled sleep need; simpler apps compare against a fixed goal.
- Respiratory rate. Usually quiet. A clear jump versus your night-to-night line is an early illness flag more than a training signal.
- Skin or wrist temperature. Deviation from baseline, used by Oura and some Watch apps as an illness and (for some users) cycle signal.
- Recent training load. Some scores (Garmin Training Readiness, Fitcoin) also fold in how hard your last days were, so a brutal week drags readiness down even if last night looked fine.
How Whoop, Oura, Garmin and Fitcoin differ
| Platform | Score name | Main inputs | Hardware needed |
|---|---|---|---|
| Whoop | Recovery (0–100%, green/yellow/red) | HRV (RMSSD in deep sleep, heavily weighted), RHR, sleep performance vs need, respiratory rate | Whoop strap + membership |
| Oura | Readiness (0–100) | Overnight HRV, RHR and its overnight curve, sleep score, temperature deviation, activity balance | Oura ring + subscription |
| Garmin | Body Battery + Training Readiness | HRV status vs baseline, sleep, recovery time from recent sessions, stress history | Garmin watch |
| Fitcoin (ours) | Recovery (0–100) | HRV vs baseline (~36%), RHR, SleepScore, sleep consistency, 7-day vs 28-day training load, overnight systemic pillar | Free app; Apple Watch/iPhone or Android via Health Connect (Whoop and Oura data supported) |
Three things follow from that table. First, no two platforms will print the same number for the same night, because the metrics (SDNN vs RMSSD), windows (deep sleep vs whole night) and weights all differ. Second, the strap and ring companies bundle their scores with hardware subscriptions, while Watch-and-phone apps compute theirs from data your existing device already collects. The trade is sampling density for cost. Our list of Apple Watch recovery apps without Whoop covers that category in full. Third, only some scores know about your training load; a load-blind score can smile at you the morning after a rest week even while your legs are cooked from the week before.
What a low score actually means
A low recovery score means your overnight physiology deviated from your baseline. That is all it means. The usual suspects, roughly in order of how often we see them:
- Alcohol. Even moderate evening drinking reliably suppresses HRV and raises overnight heart rate. It is the single most common cause of a surprise red morning.
- Hard or late training. A heavy evening session leaves the nervous system elevated into the night. That is the system working, not failing.
- Short or broken sleep. Obvious, and still the most fixable.
- Illness. Recovery scores often sag a day or two before symptoms. A low score plus rising respiratory rate or temperature deviation is worth taking seriously.
- Heat, late meals, dehydration, stress. Each nudges the same signals the same direction.
One low morning is noise; act on nothing. Three to five consecutive mornings below your normal is a pattern; that is when reducing intensity, protecting sleep and skipping alcohol earns its keep. And a low score is not an instruction to cancel life. An easy session on a low-recovery day is almost always fine, and often helps.
How to improve a recovery score (the honest version)
Because the score measures the physiological consequences of your behaviour, the only levers are the behaviours:
- Sleep on a schedule. Consistent bed and wake times, with enough hours, move every input at once.
- Cut evening alcohol. The fastest single improvement most people can make.
- Finish hard training and heavy meals a few hours before bed.
- Wave your training load. Hard days need easy days after them. Stacking maximal sessions is how you buy a week of low scores.
- Treat illness with rest, not with a defiant tempo run.
There is no supplement, ice bath or breathing app that substitutes for those five. Some may help at the margins; none outruns a nightly bottle of wine.
A quick detour: heart rate recovery is a different thing
People searching for a "heart rate recovery score" often mean HRR: how many beats per minute your heart rate falls in the first minute after you stop exercising. Apple Watch shows this after workouts, and a faster drop generally tracks with better cardiovascular fitness. It is a useful metric, but it is measured after exercise and reflects fitness, whereas a recovery score is measured overnight and reflects readiness. Improving your HRR is a months-long training outcome; your recovery score can swing tomorrow because of tonight's curry.
Limitations nobody prints on the box
Recovery scores are estimates built on estimates. Wrist and ring optical sensors are good but not ECGs; a loose band ruins the night's data silently. Baselines take weeks to settle, so the first fortnight of any platform is fiction. Muscle soreness lags the autonomic signals, so you can score green with legs that refuse stairs. Fitcoin lets a soreness check-in pull Recovery down for exactly this reason, but most platforms do not. Mental fatigue is only partially visible to any of them.
And the deepest limitation: the score cannot know your intent. A 45% morning before a walk is irrelevant; the same 45% before a race is information you probably should not override lightly. The number is an input to judgement, not a replacement for it. If you want to see how Fitcoin folds Recovery into a broader daily score, what is FitScore covers that.
Which recovery score should you use?
Whichever one runs on hardware you will actually wear to sleep every night. That rule beats every algorithmic difference. A Whoop in a drawer scores nothing; an Apple Watch you charge at 6pm and wear to bed scores every night. Beyond that: pick Whoop or Oura if you want dedicated 24/7 hardware and will pay the subscription; pick a Watch app (Fitcoin, Athlytic, Bevel) if you already own the device and want the score free or cheap; pick Garmin if you live in Garmin's ecosystem already.
Then, and this is the part people skip, pick one headline score and give it a month. Running three recovery apps and averaging their disagreements is a hobby, not a training method.
Frequently asked questions
What is a recovery score?
A recovery score is a single morning number, usually 0 to 100, that estimates how ready your body is for training. It is built from overnight physiology compared with your personal baseline: heart-rate variability, resting heart rate, sleep duration and quality, and often respiratory rate and skin temperature. It is a readiness estimate, not a medical measurement.
How is a recovery score calculated?
Every vendor uses its own recipe, but the pattern is the same: measure overnight HRV and resting heart rate, compare them with your rolling baseline (typically two weeks to two months), factor in how much you slept versus what you needed, and sometimes adjust for respiratory rate, temperature deviation and recent training load. Deviations below baseline pull the score down; at or above baseline scores well.
What does a low recovery score mean?
It means your overnight physiology deviated from your normal: HRV suppressed, resting heart rate elevated, sleep short, or some combination. Common causes are hard training, alcohol, late meals, illness, heat and stress. One low morning is expected noise. Several in a row is a genuine signal to reduce intensity, protect sleep and skip alcohol for a few days.
Is heart rate recovery the same as a recovery score?
No. Heart rate recovery (HRR) is how quickly your heart rate falls in the first minute or two after exercise stops, and it is a fitness indicator measured after workouts. A recovery score is a morning readiness estimate built from overnight data. Both use your heart, but they answer different questions.
Can I get a recovery score on Apple Watch without buying Whoop?
Yes. Apple does not publish its own recovery score, but apps such as Fitcoin, Athlytic and Bevel read the Watch's overnight HRV, resting heart rate and sleep from Apple Health and compute one. Fitcoin also does this on Android through Health Connect. The numbers will not match Whoop's, because the algorithms differ, but the push-or-rest guidance is comparable. See recovery apps without Whoop.
How do I improve my recovery score?
The unglamorous basics: consistent sleep and wake times with enough hours, little or no alcohol in the evening, finishing large meals and hard training a few hours before bed, managing training load so hard days are followed by easier ones, staying hydrated, and treating illness with rest. There is no hack that beats those, because the score is measuring the consequences of exactly those behaviours.
How we researched this: Written 16 August 2026 from Whoop's published Recovery explainer (bands and inputs), Oura's Readiness documentation, Garmin's Body Battery and Training Readiness descriptions, Apple's Health documentation of HRV (SDNN) and heart rate recovery, Athlytic's and Bevel's public score documentation, and Fitcoin's on-device Recovery, SleepScore and load calculators. Vendor weights and features change; confirm against the live apps. Fitcoin inclusion is ownership-disclosed. Wellness estimates only; not medical advice.
Related reading: Whoop Recovery explained, recovery apps without Whoop, what is FitScore, HRV on Apple Watch explained.
About the author: Harris Khan is the co-founder of Fitcoin. He studied at Loughborough University and has more than 15 years of personal experience across strength training, bodybuilding, Muay Thai and general fitness.