R02
TestedOur reference device. Syncs every metric Clovering supports today, apart from skin temperature — the R02 has no sensor for it.
Apple Health · COLMI smart ring
Your ring's health data.
Yours alone.
A private bridge from your COLMI ring to Apple Health. No account, no servers, no third-party cloud.
Now in public beta · iPhone via TestFlight
Raw measures
- Heart rate
- HRV
- Sleep
- Steps
- Blood oxygen
- Skin temperature Soon
Computed on-device (optional)
- Resting heart rate
- Workout detection
- Heart rate Sampled every 5 minutes
- Resting heart rate
- Heart rate variability
- Sleep
- Steps & activity
- Blood oxygen
- Skin temperature Soon COLMI models R09 and R10 only
- Workouts Auto-detected after the fact, from lower-rate data
- ECG
- GPS workout routes
- Fall detection
Clovering covers your everyday biometrics; an Apple Watch adds a few features that need extra hardware.
What Clovering is
A simple data bridge: your ring does the measuring, Clovering simply moves the readings into Apple Health.
Privacy isn't a setting. It's the architecture.
Most wearables route your personal biometric data through their own cloud. Clovering routes it directly to Apple Health fully on device. We can't see your data, by design.
COLMI ring Your ring's sensors capture biometrics like heart rate and sleep.
Your iPhone After a couple of taps to pair, Clovering pulls and caches the data from your ring over Bluetooth.
Apple Health You grant write access to the metrics you want, where they are securely stored in Apple Health.
No cloud Your data is managed solely on device by Clovering.
Your data is yours. Clovering has no servers, no account, and no cloud sync. The app writes your readings straight into Apple Health on your iPhone, with no network connection and nothing sent to us or any third party. Any iCloud sync is Apple's to handle, end-to-end encrypted and under your control.
Choosing a ring
Clovering is built and tested against the COLMI R02. Other rings on the same QRing app and Bluetooth protocol should work the same way, but the R02 is the only model we've fully verified.
R03 · R06
Should workClose siblings of the R02 on the same protocol, so they should behave the same. We haven't verified each one individually.
R09 · R10
Test coming soonAdd a skin-temperature sensor. Everyday metrics should sync like the R02; temperature support is still untested and on the way.
Rule of thumb: if a ring's listing tells you to pair it with the QRing app, it likely speaks the same protocol (including many rebranded look-alikes). COLMI rings are sold on Amazon (faster shipping) and on AliExpress (lower prices).
Try Clovering now
Clovering is in open beta on TestFlight. Install Apple's free TestFlight app, tap the button, and you'll have it on your iPhone in a couple of minutes.
Requires iPhone · Free TestFlight app · No account needed.
Clovering is free and built by one person. If it's been useful, you can buy me a coffee — entirely optional.
Legal & disclaimers
Not a medical device
For personal, informational use only. Clovering is not a medical device and is not intended to diagnose, treat, or monitor any health condition. Data accuracy depends entirely on your ring's sensor, so don't base medical decisions on it.
Privacy
Clovering has no servers and no account. The app writes your readings straight into Apple Health on your iPhone, with no network connection and nothing sent to us or any third party.
Non-affiliation
Not affiliated with, endorsed by, or connected to COLMI or QRing. "COLMI" is a trademark of its respective owner, referenced here only to describe hardware compatibility.