Colmi R10 Smart Ring - Health Sleep Tracker

Excellent product! I recommend buying it!

It arrived perfectly packaged! Works on the iPhone.

Simply wonderful! Perfect size. Working perfectly. Delivered before the deadline. 👏🏻👏🏻👏🏻👏🏻

I really love this ring! i got a size 7 and it’s still too big however recommend a smaller ring on top of this ring to keep it in place, it works really well! the colour is more rose gold than gold but it is so beautiful and the app is so handy. after 1 full day of use the battery is still 96%! thank you so much colmi. highly recommend!!

Excellent smart ring. I immediately took the maximum size. Everything fit perfectly. Waterproofing confirmed completely. A month of river bathing. Measures heart rate, temperature, and blood pressure (indirectly, in its own units 0-100, not mmHg). ), blood oxygenation (in my opinion, slightly overestimates), pedometer, also pulse variability (I don't know what that is), sleep. It works autonomously, then uploads the data to the phone. With all connected monitoring devices, the battery lasts approximately 3 days. The app is a bit poorly localized into Russian, but everything is clear. Among the disadvantages, compared to a fitness tracker, activities can only be activated from the phone. Everything else is just a plus.

Very beautiful and arrived earlier than expected. Be careful with their size chart as it is incorrect. My finger circumference was 58mm and I ordered size 8, which was perfect.

Very good... This one is working very well...

It arrived well-packaged and without any damage. This time the numbering worked out; according to the measurement, it should have been number 8. I ordered for the first time, but had to request a return because it was too loose, but this time the N ° 7 worked well, it wasn't too tight and also didn't slip off the finger easily to the point of falling off.
It's beautiful. In our case, we will use it as an engagement ring; it's beautiful and very functional.

I’m impressed with this product. it is really accurate and it has nothing i miss in comparison to the oura ring. the battery lasts between 3 to 4 days depending on what i do with it and it’s really great to track my health stats. i even stopped sleeping with my apple watch to track my sleep in favour of this ring

It's simply a gem, it arrived ahead of schedule, I'm simply in love with the ring, it's working perfectly, came in great condition with three cases to protect it, I want to congratulate the seller for selling a quality product. Just buy it, you won't regret it, not to mention the price is very affordable for everyone.

Great smart ring! comfortable, stylish, and easy to set up. the app works well, and i love tracking my sleep, heart rate, and daily activity. excellent quality for the price. highly recommended! size 8 on my index finger ! super good on my anular finger i’m 52 (pandora brand)

Excellent product, works great, good app. Highly recommended.

I really liked the ring, the delivery was fast (I bought it on 14/06 and it arrived on 22/06 in Paraná). The data has been accurate so far. I compared it with my Samsung Galaxy Watch and the data was very close. Unfortunately, I bought a size too large... it's still usable. It's a bit loose, but it doesn't come off my finger. I will buy another one in the future. I recommend it!

Nice and comfortable ring, all functions work well. Too bad it lacks pressure measurement, that would make it perfect.

Great ring to wear. analytics are superb and information coming from the app is actually very real time. heart rate, hrv, stress, blood oxygen parameters are accurate. i would recommend this watch.

It's beautiful, I've used it for several days, even when water got on it, and everything has been great.

Very fast delivery. Very complete product, with a charging case, cable, a set of protective rubber covers as a bonus, and some straps that I haven't figured out what they are for yet.
The app is very comprehensive, with all the information available, and it's super easy to install and prepare for use.
So far, the ring seems comfortable to wear. I chose size 10. My finger size is 9.

Love this sizing accurate and it’s comfy to wear and sleep with

I'm thrilled! I took size 7 for 17-17.5. Perfect... I'm completely shocked by how accurate it reads my sleep data.😍

Works decently but a few quirks. for the price not bad. but charger indicates full charge when it’s not fully charged; battery life approx 1-3 days depending on your settings. fits a bit small (1/2 size) in my opinion. sturdy ring. very cute. app is easy to use and free but very basic. menstrual tracking is questionable

Everything is fine.