COLMI R02 Smart Ring with Charging Case for Men and Women, Battery Life, 39 Days, Health Monitor, 5ATM Waterproof
COLMI Smart Ring
No.1 in sales on HTMall and is far ahead.
Note:
1. For best performance and accuracy, we recommend wearing the COLMI Ring on your index finger. If you prefer other fingers, the middle and ring fingers are also OK. Avoid using fingers that are narrower than the knuckles at the base.
2. The size of COLMI rings may not be completely in line with universal standards. Please measure your finger circumference before purchasing and make sure it fits comfortably, then choose the appropriate size.
3. How to start: Charge the COLMI Ring with the included charging cable. The heart rate light will illuminate to indicate a successful startup. Then you can use the APP Qring to connect the COLMI Ring.
COLMI Smart Ring – R02 with Charging Case
Introducing the revolutionary COLMI R02 Smart Ring with Charging Case – a breakthrough in wearable technology, offering seamless health monitoring right at your fingertips. With its state-of-the-art design, you can effortlessly track your heart rate, blood oxygen, and stress levels – all without lifting a finger. Your health data is automatically recorded, ensuring you’re always in the know about your body’s status.
Wear it worry-free every day, the titanium steel shell, paired with advanced low-temperature potting technology, grants the ring a 5ATM and IP688 water resistance rating. The R02 Smart Ring is not just feather-light but incredibly durable and resistant to wear. Its ruggedness is matched by monitoring accuracy, with 20 different exercise modes that monitor your heart rate data in real time during exercise.
Embrace the future of smart wearables with the COLMI R02 Smart Ring – a perfect blend of innovation, style, and health consciousness.



COLMI official store
Authentic COLMI smart watches are engineered and manufactured with high-quality materials, and they’re always quality-tested before they leave our factory.
Since counterfeit or fake devices are not built or tested to these standards, they might perform poorly or malfunction. So, we recommend buying devices sold only by our official store.
Brand Story
COLMI was established in 2012.
Slogan: Your first smart watch.
Young and simple, but never naive.
Mission: Provide cost-effective smart electronics.






g***r –
Aesthetically beautiful, easy to connect to the app. I have to use it for a few days to see if it is accurate.
T***a –
Does not record the sleep correctly unfortunately. Otherwise I think it’s ok.
Customer –
Bonus came with a silicone band so i feel like it’s protected. Nice and sleek and just what i was after! Sizing was very easy to follow
J***i –
Perfect
L***l –
Fits perfectly on my middle and index finger on both hands. Sleep rating isn’t accurate but everything else works perfect. I bought it for the step counter. For the price super happy with it. The app on the qr code is different than the one they advertised but no biggie.
Customer –
Runs really large! Looks good though. Need to get another size :((( it’s okay because it came really quick so not long wait at all
i***g –
Good
D***z –
I’ve been using it for 2 weeks / the battery lasts days but not a week. It’s fine and I use it more as a sleep monitor. It’s good for its cost.
S***a –
Wearing this ring almost a month. Like it
t***y –
Top
e***e –
Too big for me but store refunded
A***r –
Good packaging, fits the requested size, even comes with a finger circumference measuring tape inside the cable box. S
A***i –
It is the pink gold that is golden as such. It works fine and the charging box is very comfortable.
V***e –
Adoreeeei! But it was too big on my finger, so I gave it to my dad and bought a new one for myself!!! !
Customer –
Preforming nicely
P***a –
I have almost returned it! . I could NOT charge it. There is a sticker on the charging port on the ring, it is very difficult to see, and the manual says nothing about this f_ck sticker! . After removing, the ring works well.
Customer –
Fit good
M***O –
The ring arrived within the time frame. I’ve had it on for 24 hours works perfectly. More than l expected. Highly recommend if you want something easy and comfortable to wear, just for monitoring your health.. i’m super excited having it!
Customer –
Work
S***a –
price quality 👍
J***s –
goods were delivered quickly. Ring Works Great. can be recommended. Only the ring size does not fit as measured, they are smaller than stated. that’s a shame.
L***n –
Ring works as described, would suggest going down a size as i measured per instructions and it falls off as too big (have to wear on thumb which isn’t comfortable), would recommend going down a size. Sleep tracking is not super accurate everything else appears to be. Only worn 2-3 times and already lightly scratched all over.
r***r –
This wonderful gadget does what it is supposed to do without breaking the bank!! ! One of my best purchases so far.
Customer –
I run very well, just put it on and it seems to load well. We’ll see how it will go with the measurements these days
a***r –
Very comfortable to wear. It looks very nice on the finger. I recommend.
Customer –
10/10! Cannot recommend enough, steps could be abit more accurate but love the sleep tracking
R***i –
beautiful
Customer –
fucked up
d***s –
Quite impressed; have taken out surfing 3 x over long weekend and no problems with ring; app features are pretty good also
C***r –
Shipping is great! Thanks Cainiao often delivery within a week, if the order is placed on the weekend, the goods arrive in the weeks. Hammer. Support is also reliable. Another note for Donald & Co: EU-China trade runs very well for orders under €150 – including support. Maybe you should double the customs free limit instead of fighting Donald. For the product itself: The Colmi Ring R02 works perfectly and provides useful measurements. There are always smaller deviations – like with professional devices – but changes in health values are clearly seen. The app is free and can be used, for example. Connect completely to Apple Health – no additional costs. The material works high quality, the ring is waterproof and can also completely go into the water. Battery life is good, but depends on the settings
C***r –
Great product! The Colmi Ring R02 is probably identical to models sold in the EU under other names. The ring works perfectly and provides usable measurements. There are always smaller deviations – like with professional devices – but changes in health values are clearly seen. The app is free and can be used, for example. Connect to Apple Health – no additional costs. The material works high quality, the ring is waterproof and can also completely go into the water. Shipping great! Thanks Cainiao often delivery within a week, even when ordering on the weekend. Support is also reliable. Another tip for Donald & Co.: EU-China trading is very good for orders under €150 – including support. Maybe you should double the customs free limit instead of fighting Donald.
Customer –
My fault l ordered the wrong size 🙃
Customer –
Not comparable to aura ring but it does what it says it does. Long battery life but limited capabilities of the app
C***n –
Fits well and easy to pair with app! Ring is more a bronze and not gold
l***z –
Price quality is good. The battery doesn’t last long
Customer –
Absolutely amazing product! Used it for a week. Only changed it today. It measures everything and the app is awsome! Really recomend it!
S***h –
Very happy with it, easy to install and works super well
F***s –
Excellent, like in the advertisement. I just found it strange that you don’t use the Colmi app, but the Qring app, but the chip is the same.
Customer –
Perfect, works perfectly fine, very excited about this purchase. The packaging and material looks very good quality. Fast delivery to new zealand.
G***u –
Excellent product, the battery lasts a long time.
A***z –
The sizes do not match the measurements they provide
S***y –
Really good but to big i orderd smallwr one
E***e –
ring is good quality. fits well. everything is fine. recommended
o***o –
It’s too big. If your size is 15-16, then this ring will be too big. I chose size 9 and it was big even on the largest finger. When ordering, please note that the sizes do not match. My husband will use it. Everything is set up, everything is fine.
E***i –
Excellent product for its price, I replaced a similar smart ring because I broke it, this one is more practical because it has a power bank box to charge it wherever and whenever you want.
A***i –
Its too big 😭 I’ll try anyway and if i like it i’ll buy another size
s***b –
So far i’m impressed with it. Works great
Customer –
Works great, very convenient
G***n –
It’s not worth writing a review now, because rhere are only a few left. But this ring is awesome for what it does. Very good battery life, and easy firmware updates over the air. The ring is a little fat, but i have had no issues with skin irritation, and i am very prone to skin irritation. The ring pairs easily with the qring app and records data reliably. Accuracy is not perfect, but that’s true for any device that is not implanted inside the thorax. It’s fine! After wearing this for a day, i ordered an r09 for my wife. It’s now over a week later, and i am still happy.
P***l –
Arrived this morning so far working very well easy to set up would buy from again
S***y –
Just got it. Fits well. The app seems okay.
j***r –
Love her!!! Comes with its own silicone cover (which i love because i train at the gym everyday) super easy to use and app is user friendly – bought for my left index finger but the smallest size was the 8, however still is a great size for my index finger on my right hand. So far very impressed for the price plus shipping to aus was really quick!
S***s –
The watch is very beautiful. It fits me perfectly in size. The charger is super nice. And it takes a short time to load. I love it
M***n –
Great ring. Easy to understand directions. App is very nice compared to others i have seen. The steps ,when walking on the treadmill, differ slightly than my smart watch, but it’s no big deal. The sleep tracking is off – i slept for 5 hours and it said i had slept for 8 hours. Other than that i’m glad that i chose this ring. Also, i might have missed it in the description, but it came with a clear silicone ring protector. And it arrived a lot sooner than expected.
Customer –
Obsessed! As long as the ring is placed on your finer correctly to read your vitals, the results are accurate. The activity/step tracker isn’t 100% (just like other devices) but it’s not way off.
J***d –
Beautiful ring, works well so far. Based on a measuring ring (from someone else’s package), I measured that I am a size 9, but the ring itself fits a little tighter than the measuring ring in the package. If you’re unsure, maybe take a size larger. Super fast shipping and delivery!