R10

I'm gonna get laughed at, or flack for this, but I use a Colmi R10 from AliExpress, primarily because its cheap as heck (I paid $40 CAD with free shipping), has a roughly 5 day battery life (so far) and the app tracks sleep, activity, heart rate ( I set at 20 min intervals), blood oxygen and step co

I've had the Colmi R09 for three months now, and I honestly have no complaints. In my case, it's quite accurate in everything (the first day I wore it, it did give me some nonsensical readings, but I think it needed to sync properly). Otherwise, everything is fine. I've compared the ring's measureme

Look for the Colmi rings thaf use the QRing app if accuracy doesn't matter. But buy several extras as they do sometimes arrive dead on arrival. Look on Temu or Ali for R06, R07, R09, or R10. You could even mix and match as the hardware is identical except the 9 supposedly adds a skin temp sensor.

I use an AliExpress brand named Colmi R10. It's inexpensive and the tracking is about as accurate as the ones that cost hundreds of dollars. No subscription and the power lasts about a full week on a single charge.

I got the colmi R10. I did some research and at the end, basically are the same sensors as the fancy brands, the difference is the brand and the analysis of the data. I highly recommend the colmi R10, it is simple and measures very well and you don't end up paying an insane amount of money. It measu