Choosing a smart ring

Clovering is built and tested against the COLMI R02, R09, and R10. Other models or branded rings that use the same Bluetooth protocol and work with the QRing app should work, but are unverified.

R02

Tested

Our reference device. Syncs every metric Clovering supports today, apart from skin temperature — the R02 has no sensor for it.

R09 · R10

Tested

Adds a skin-temperature sensor. Both the R09 and R10 are fully verified.

R03 · R06

Should work

Close siblings of the R02 on the same protocol, so they should behave the same. We haven't verified each one individually.

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).

Fit & sizing

Measure the circumference of your finger in millimeters — the finger you'll actually wear the ring on, since hands aren't symmetrical — and match that against COLMI's size chart. Don't carry a size number over from another brand or from a jewelry ring; the numbers don't line up.

If you land between two sizes, size up. Tight beats loose for sensor contact, but a ring you can't get off is worse than either.

One thing the chart won't tell you: the R02 wears a little looser than an R09 or R10 in the same size.

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.