COLMI R02 Smart Ring Military Grade Titanium Steel Shell Health Monitoring IP68 & 3ATM Waterproof Multi-sport Modes
- Hign-concerned Chemical: None
- Waterproof Grade: 3ATM
- Model Number: COLMI R02
- Display screen: No
- NFC Support: No
- Activity Tracked: Activity Tracker,Steps Tracker,Distance Tracker,Calorie Tracker
- Metrics measured: Heart Rate Monitor,Sleep Monitor,Blood Oxygen Monitor,Stress Monitor
- Item Weight: 4.7g
- Case Material: STEEL
- Battery Capacity(mAh): 17mAh
- Certification: ce
- Origin: Mainland China
- Brand Name: COLMI
COLMI: No.1 in sales smart ring on AliExpress, 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 light up to indicate successful startup. Then you can use the APP Qring to connect the COLMI Ring.
COLMI Smart Ring – R02
Introducing the revolutionary COLMI R02 Smart Ring – 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 3ATM&IP68 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.






















If you go to sleep and get up and try to take it away, your hands are swelled.
Usually, I told 8 because it was a size 10.
The measurement seems to be about 70% ~
App updates are required. The crash has a good error!
Measures various things, blood oxygen sleep heart rate, etc
I advise your purchase
The app is a bit smooth but hey...
Charging is good and works well
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A lot of metal-like outer material is cheap
When you're working rough or rough because you're weak on the screen.
It is recommended to remove it. The meter is about 20% more
It will be calculated
The Titanium of the ring is covered by plastic, worry about being worn out after some time.
It seems the data on te app cannot be stored on the cloud, when I click on profile it crashes, hope this get fixed later.
Other than that is a very solid smart ring option.
Does the L
All right...
Oyster fitness is not linked
The Product thickens somewhat much
For those who have the fat hand like me, size 11 is still tight, in this case, I recommend taking the R03 that is up to size 13.
Delivery took a while to the northeast, though, standard for the post office.
I will not give 5 stars due to the lack of larger sizes available for purchase.
Oh, and when the finger mm circumference is measured, from the actual figures, you can order 2mm Peya without being too tight and loose!
Monitors very well, even the menstrual cycle.
It is not possible to link it to Google services although it gives you the option
only using it for heart rate and sleep tracking
The ring needs a re-charge every two days. The step counter over counts the steps by almost 30%.
App is easy to configure
however be warned! the battery only lasts for a day or so!
despite notification allowed it does warn you to charge
so data is often lost
The battery consumed about 30% hours when worn for 24 hours ..
Size 11 purchase. Perfect for your index, middle,.
I am afraid of the quality of resistance, I would advise to be very careful.
It took 8 days to ship to Jeju's Dala.
I don't usually wear accessories at all, but suddenly, I bought them for fashion + exercise
It's thicker than a regular ring, but it's lighter, so I'll wear it.
I can use more details to figure it out.
Kind of small for my hands, but it is not a fault.
I would reccomend it.
It's a good fit and light and I've worn it 24 hours without noticing it.
For £13 I thought I would give it a go and not expect much.
I also have two Samsung Galaxy watches to compare it with.
The results are excellent.
It measures heart rates, blood oxygen and stress levels the same and it also accurately tracks sleep and activity.
A fantastic product for an unbelievable price.
I recommend it.
The pairing is also simple, and in the Naver review, the performance is also compliant.
I feel like wearing an Oura ring that is expected to cost 800,000 won or a Galaxy ring that is expected to cost 400,000 won. It looks good.
Oh, the delivery was crazy and fast.
Lighter than you think
satisfied with :-)
thank you
The app is a very well-made app, so it is an app with a very convenient configuration.
I want to give a high score to the completeness of a highly complete app app.)
Of course, it is not possible to know exactly how accurate the heart rate or blood oxygen sleep check is.
However, compared with the heart rate of the smart watch, the heart rate had little error.)
Very good, especially for sleep data. It's A ring, so it's really comfortable.
And the battery is about 3-4 days after buffer.
In the setting turned on to monitor heart rate and blood oxygen.}
At this level, I think it is a decent item in terms of price usage.
shipping was very fast so I'm happy I received it in time actually it came faster than expected. 🍀😊 so a big plus for that! thank you
The pull fits well on the No. 9 normal male fourth finger.
It's No. 8, but it's a little left on the middle finger.
I wish there was a 7-issue version.
As a result of a daily check, about 19% batteries are consumed, so it can be used as a pool for about 5 days, the buffer will be buffer in about an hour.
There are many kinds of motor functions, the sleep check is REM sleep Norem sleep .. Even on the way, I often wake up and smoke, it's very good where it's exactly grasp.
The waterproof function is good, if you use it for a long time, there is no breakdown, and there is no part like peeling on the ring, I think it will be much better than the soon-to-be-launched Samx's 400,000-plus-dollar smart ring.
The ring is so thick that the discomfort in the fingers is definitely felt
And I ordered the ring size after self-measurement, so I bought it.
I'm smaller than the actual one.
The ring is so thick that the discomfort in the fingers is definitely felt
And I ordered the ring size after self-measurement, so I bought it.
I'm smaller than the actual one.
So I have been able to try so far the app that is easy to connect and pair quickly with the Mobile works well...
You have to try more for longer to see what results you give over time.
For the moment happy... thanks Aliexpress and the seller
Measures various things, blood oxygen sleep heart rate, etc
I advise your purchase
Only 1 thing negative, doesn't measure body temperature.
The app works well, and although I've only had it 3 days, it's on track to last 1 week on a single charge, even though I've got constant heat rate and 02 monitoring on. Would recommend.
To pulzust pontosan méri,
Lépéseket nem mindig,
A véroxigén szint pontatlan.
(Samsung galaxy s10-méréhez viszonyítva.)
Elalvást is ébrést jól azonosítja.
Marks me every detail
Material is plastic not metal