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.

I have a colmi R09 and R02 for over a year now. I first purchase the R02 it worked great except the gold exterior is scratching away but the app and accuracy have been great as I have compared it with my Apple Watch. The R09 has a has temperature sensor and it’s what told me that I had a fever sever

I thought the colmi ring was pretty impressive for like $20. Tested it against my fenix and an Apple Watch and for steps and sleep i thought it did a pretty good job. Nothing advanced, but you get a lot of value for what you pay. Syncs with Apple health too. My plan was to test it out and if i liked

I lost my Ringconn Gen 2, I lost a lot of weight and slid off my finger. Since I cannot afford a New Ringconn, I ordered a Tik Tok cheap smart ring. The Colmi R02. The sleep tracking, heart rate, HRV closely match my Apple Watch. The ring does not detect naps. For the price point, it is not bad.

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

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