How to read your Amazfit (Zepp) HRV

Amazfit devices show HRV in the Zepp app. Read it against your own recent nights rather than a single target number.

What Amazfit shows

We have not verified from Zepp’s own pages which HRV formula or time window it uses, so we do not label it here.

If a combined score looks off, check the HRV and resting heart rate behind it over several days.

HRV type: Not confirmed from official pages.

How to read it

Compare a night with your own usual range over the last weeks, not with another person or another device. A single low night is most often a reaction to something specific — a short night, alcohol, an infection, stress or hard training. Several days below your range together with a higher resting heart rate and feeling unwell are a reason to rest.

Scores such as Readiness, Recovery, Nightly Recharge or HRV Status are each maker’s own algorithm. Two devices on the same night can show different HRV numbers because they measure at different times and with different formulas; neither is “wrong”.

Can Amazfit connect to ONDA?

No public web API

Amazfit / Zepp does not offer a public developer API that we could find, so a direct connection is not possible.

Through Apple Health

We have not confirmed that Amazfit writes HRV to Apple Health, so we do not promise that your Amazfit HRV will appear in ONDA. If your device is not Apple Watch, ONDA can still measure your pulse with the iPhone camera, along with a breathing-rate estimate. The camera gives pulse, not HRV.

Questions

Can ONDA read my Amazfit data?

Not directly: there is no public API we can use. ONDA can measure your pulse with the iPhone camera, and reads HRV from Apple Watch.

Read more on ONDA Science

When a number is not the point

No HRV reading can tell you whether symptoms are serious. Whatever your device shows, call emergency services or get emergency care for: chest pain or pressure; fainting or near-fainting; severe shortness of breath; fast, strong or irregular heartbeat that does not settle at rest (including with dizziness); sudden confusion, weakness on one side, trouble speaking. This page is not medical advice and does not diagnose anything.

Amazfit is a trademark of its owner. ONDA is not affiliated with or endorsed by Amazfit. Other devices