R02

I have a cheap Colmi Ring, heart rate, steps and sleeping is quite accurate, battery last 5 days and has been quite reliable, super happy for now. Cost around 25usd

I recently discovered the Colmi rings. I went with R09. I haven’t tried more expensive brands or those with newer tech. But mine seems fairly accurate for sleep. I’m happy and see no reason to upgrade for now. But if I do, it’s likely to be a Ringconn.

i have a Colmi R09 and R02. 09 is slightly more accurate, but battery lasts about 2 days. 02 is a bit less accurate but "good enough" for me for sleep, activity, and exercise tracking and battery lasts over 4 days.

just remember qring doesn't log exercise to health connect which is a pain ..it only logs heart rate , steps and sleep ..total calories burned is useless ..if it logged exercise it'd be a half decent ring. also.Qring and colmi rings have a problem transferring rem sleep to health connect for some re

I have a Colmi R02. Battery lasts 3 maybe 4 days. Activity and Sleep tracking is OK. Less accurate than Huawei Band (which is less accurate than Apple Watch). Ring is bulky and leaves an indent on my fingers. Also fingers unable to close together when straight. For the cheap purchase cost it is defi

I've been using a colmi r03 for the past few months for sleep tracking. Like others said, its not the most accurate and sometimes it is missing a night of sleep in the app but for $20 its pretty great. I originally bought the r02 but it was the wrong size so I had to buy another. As far as I can tel

I brought the R02 from tiktok for £13 including delivery as a trial after seeing a colleague using it. It was much better than I expected, felt nice to wear. I tracked lots of walk and some strength training. The ring has held well even with wight lifting and other stuff, I didn't take extra care bu

I use a Colmi R02 and the sleep data is very similar to Amazfit and Samsung

I bought a cheap Colmi R02 smart ring from China. Battery lasts 4 days. Activity and sleep tracking OK. Far less accurate than my Apple Watch. Then I bought a Huawei Band (mini smart watch). Battery lasts a week. Activity and sleep tracking better than the ring, but still not as good as the Apple Wa