How-To

How to Get a Recovery Score on Apple Watch, Without WHOOP

Your Apple Watch already collects most of what a recovery score needs overnight. Here's what it measures, why Apple stops short of scoring it, and the step-by-step to turn it into a real recovery score on Apple Watch — no strap, no subscription.

By the Axon team · Updated 12 September 2026 · Prices are US App Store, September 2026

What your Apple Watch already measures overnight

While you sleep, Apple Watch is already collecting the raw signals a recovery score is built from:

• Heart rate variability (HRV) — the beat-to-beat variation in your heart rhythm, generally lower under physical or mental strain.
• Resting heart rate — your lowest sustained heart rate, tracked as a 30-day rolling baseline rather than a single-night reading.
• Respiratory rate — breaths per minute while asleep, tracked against a rolling 30-day personal baseline.
• Wrist temperature — on Series 8 and later, a night-over-night deviation from your own baseline (not an absolute body-temperature reading).
• Blood oxygen (SpO₂) — on Series 6 and later, overnight oxygen saturation.
• Sleep stages and duration — time in bed, time asleep, and (with the Watch worn) core/deep/REM stages.

These are exactly the categories WHOOP and Oura build their recovery models from. The sensors are already on your wrist.

Why Apple shows Vitals but (on most watches) no recovery or readiness number

Open the Vitals app on Apple Watch and you'll see each of those readings listed individually, marked typical or outside your usual range; from watchOS 27 (14 September 2026) it also shows a Recovery HRV reading against your personal baseline, but only on the Series 12 and Ultra 4 — on every earlier Watch the card appears and stays empty. Apple stops there for most owners. On 9 September 2026 Apple announced a native Readiness score that combines recent activity, vitals and sleep and updates through the day — but it requires the new Apple Watch Series 12 or Ultra 4 with the Health Sensing System. Series 4–11, SE and earlier Ultra models do not get it, and no Apple Watch has a recovery score. For everyone on those watches, the single number that says what the dials add up to today is the layer a dedicated recovery app adds.

What a recovery score needs: a personal baseline

A recovery score only means something relative to your normal. A resting heart rate of 58 bpm is unremarkable for one person and a warning sign for another — the number only becomes informative once an app knows what's typical for you specifically. That's why every recovery-scoring app, Axon included, needs a run-up period before its numbers are meaningful, and it's worth being upfront about how long:

• HRV and resting heart rate: Axon needs roughly a week (about 7 nights) of overnight Watch wear before it has enough history to move past a "building baseline" placeholder and start scoring against your personal pattern.
• Respiratory rate: this contributes through a rolling 30-day personal baseline, so its role in your Recovery score takes closer to a month to fully settle in.

Until a baseline is established, Axon shows an honest placeholder rather than guessing — a filled-in number before there's enough data behind it would be a worse outcome than an honest "still building your baseline."

Recovery score on Apple Watch: step-by-step with Axon

1. Install Axon from the App Store — it's free, with no account required to start.
2. Grant Health access when prompted, so Axon can read the HRV, heart rate, sleep, respiratory rate and (where supported) SpO₂ and wrist-temperature data your Watch already collects. This data is read-only and stays on your iPhone by default.
3. Wear your Apple Watch to sleep for the next several nights. Recovery and Readiness are both built from overnight data — a night without the Watch on is a night without a fresh reading for those scores.
4. Check your Home screen each morning. Sleep and Strain can show real numbers from day one; Recovery and Readiness will show a building-baseline state until enough nights have accumulated.
5. Let respiratory rate catch up over the following weeks. Everything else keeps working in the meantime — RR is one contributor among several, not a gate on the whole score.

What to expect in week one

Day one, Axon can already show Sleep and Strain, since those don't need a personal history to compute. Recovery and Readiness will look different: for roughly the first week, expect a "building baseline" placeholder in place of a number — that's Axon declining to invent a score rather than a bug. By the end of week one, if you've worn the Watch overnight consistently, HRV- and resting-heart-rate-driven scores should start appearing and refining night over night. Respiratory rate keeps contributing more precisely over the following weeks as its 30-day window fills in. If a night is missed — Watch not worn, or not charged — Axon shows a dash with the reason rather than carrying over a stale or fabricated number.

Other apps that do this

Axon isn't the only app turning Apple Watch data into a recovery score. Athlytic (4.8★, ~11K ratings) does the same core job and adds Target Exertion and Target Sleep coaching, running across iPhone, iPad, Apple Watch, Vision Pro and Mac; Pro is $4.99/month or $29.99/year. Bevel (4.8★, ~16K ratings) goes further into a full AI health coach with nutrition tracking and works even without an Apple Watch; Pro is $14.99/month or $99.99/year, plus optional credit packs from $4.99–$49.99. Livity (4.7★, ~1.2K ratings) keeps a free core tier and can also import data from Garmin, Fitbit or Oura if you're carrying history from another device; its PRO tier ranges from $3.99–$4.99/week up to $149.99 for a lifetime unlock. Axon's difference is scope and price: four scores, on-device, free, with no coaching layer or nutrition tracking bolted on.