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COLMI Smart Ring
No.1 in sales on AliExpress, and is far ahead.

Note:
1. For best performance and accuracy, we recommend wearing the COLMI R12 on your index finger.
2. Please measure the circumference of your finger before purchasing, and make sure the rope or paper strip fits snugly against your finger, avoiding being too loose or too tight. (Please use a thinner piece of string or paper strip to measure the size. If the measuring tool is too wide, the measurement will be large.)
3. How to start: Use the included wireless charging to charge COLMI R12. The heart rate light will light up to indicate successful startup. Then you can use the APP Qring to connect the COLMI R12.
COLMI Smart Ring – R12 with Wireless charging
Innovative Technology: COLMI R12 uses the latest display technology, with a screen and touchpad built into the ring. Browse your health statistics with simple gestures, making your smart ring both responsive and stylish.
Wireless Charging: Enjoy the convenience of wireless charging with the R12.
Health Tracking: Stay on top of your health with continuous heart rate, sleep, and activity monitoring. Plus, its water-resistant design ensures durability, making it perfect for everyday wear, rain or shine.
Embrace innovation and elevate your wellness journey with the COLMI R12 Smart Ring.
















COLMI official store
Authentic COLMI smart watch 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.











AliExpress Shopper –
muito bom e rápido
U***r –
love it
AliExpress Shopper –
the battery last only 1 day. look like i got an defected item. no blood pressure monitor which is what i am looking for.
AliExpress Shopper –
This ring fits perfectly and is awesome quality
AliExpress Shopper –
Excelente produto, superou as minhas expectativas!
c***r –
Its a beautiful ring ! Unfortunately the sizing on COLMI’s website is wrong so I ordered the wrong size I needed and the ring doesn’t fit any of my fingers :/
U***r –
I like it. My third one. Unfortunately I can’t get a size 14 that I would need for my index finger. The best I’ve been able to do is get one for my middle finger which is a 13, which they say while it works is not the ideal finger to be monitoring off of. I also have one for my ring finger. I would recommend keeping the display, while it is cool, turned off because it does drain the battery much quicker. If you have it turned off, you can go several days without having to put it back on the charger. Seems to work well for sleep. Every once a while it doesn’t catch the full sleep session. I also wish that it would allow for checking oxygen levels and pulse rates more often than every 30 minutes or an hour. Especially during the sleep session would be good make sure that everything is going well during the middle of the night.