COLMI R12 Smart Ring with Display & Touch, Wireless Charging, 5ATM

Excellent product, I liked it.

Good for the price, tracks accurately enough, other than the steps which are kind of crazy imo. The touch is perfect, the screen works very well, it’s waterproof, the battery lasts around 4 days with heart and oxygen monitoring every 30 min. Looks quite good. The sizing is accurate. I bought it mostly to track my sleep schedule that’s not linear, i’m just disappointed because it tracks well enough at night but any naps i take throughout the day and it simply doesn’t track. Would love a software update to be able to track sleep throughout the day!

Very good, I recommend it!!

I bought it for health reasons, but it's terrible. It's thicker than I thought. It's a bit bigger than my ring size.

I really liked the purchase, everything went well! !
The ring is very good.

Product conforms to the description, very practical and comfortable to wear, this connected ring provides information on sleep tracking, heart rate, and our overall balance and mood.

It is beautiful to hold and consumes very little electricity with a battery life of 15 days.

I am delighted with my purchase and can only highly recommend it.

I ordered 2 rings for myself and my husband at once. I read a lot of reviews and was hesitant about the size, but decided to take size 11 for my finger diameter 7, and size 13 for my husband, who has a finger diameter of 8. In general, I got the size right because during the day the finger can swell and change size. I like the app; it really allows you to track metrics - sleep (I have a small child, I get up for a nighttime feeding and check in the morning; you can really see when I woke up and when I fell asleep). I compared the pulse with a genuine blood pressure device and the readings were identical. The steps are questionable, they say it's a bit exaggerated, but I can't confirm that here.

Firstly, the smart ring is great. Very quick delivery. I chose the black as you won't see the lcd screen as the colour blends in very well. The q ring app gives very good information of your vitals and other measurements. My only concern is the accuracy of the step count as it seems excessive compared to what i get from my smartwatch. You can also sync your data with health connect and share your data to the google fit app for better analysis of your data. Overall, very happy with the purchase and a great introduction to wearing smart rings.

Well, I bought one size smaller and it fits great. Testing it out, but it seems to work perfectly!

This ring is very useful, very comfortable, and very pretty.

Very good.
Everything went well.

Great smart ring for the value. Super fast shipping. Recommended.

Good quality, good finish. Concise for tracking physical activity.

Accurately calculate data from sleep, steps, and heartbeats, and you can use it as a prayer ring

No NFC

She's perfect! I wanted to test the usefulness of a connected ring before investing €300 in a Samsung connected ring, and it's a success. It's even possible that in the end, I'll keep this one! The advantage is that it's not expensive, less than 30€, waterproof, with a screen (well in the end I think it's a gadget since I also wear a smartwatch lol). I chose the gold color and the watch is very light (feeling like plastic rather than metal). I think I should have stuck with the silver color, but I found the gold color with a very unique screen. Otherwise, the delivery was super fast!

Very good quality appearance, doesn't seem cheap but is affordable compared to branded products. It shows heart rate, steps, battery, and time, which is essentially sufficient.

Very nice but unfortunately the greeting on the ring falls small. I wear a 7, ordered an 8, it fits half a greeting.

It's a great ring. It fits very well on the finger and after some time you get used to the thickness

Quickly
Delivered in perfect packaging condition.
Charging and connecting to the phone... and confirming all functions are working normally.
It's like a plastic ring, so there's some disappointment.
Using it for a few days
Accuracy of Functionality
Battery life and other aspects are scheduled for verification.

I will update the review after use.

Really cool. Works perfectly. But, the manual guide is terrible. Still can’t sincronize the physical activities with any app of my iphone (like strava)… and i just can’t find it a decent guide…

The ring is very useful, without a doubt. However, at least with me, the battery would run out very quickly (about 4 hours) and after some time it wouldn't turn on even when charging.

I really appreciate how well this ring really works, i am very happy with it
And looks great

Everything is okay.