Brand Name: COLMI Model Number: COLMI R12 Certification: ce Certification: FCC Origin: Mainland China High-concerned chemical: None Activity Tracked: Activity Tracker Activity Tracked: Steps Tracker Activity Tracked: Distance Tracker Activity Tracked: Calorie Tracker Waterproof Grade: 5ATM Case Material: STEEL Item Weight: about 3.3g NFC Support: No Metrics measured: Heart Rate Monitor Metrics measured: Sleep Monitor Metrics measured: Blood Oxygen Monitor Metrics measured: Stress Monitor Battery Capacity(mAh): 15mAh (7#~9#), 18mAh(10#~13#) Display screen: Yes Choice: yes
2025 COLMI R12 Smart Ring With Display Screen and Touch, Wireless Charging,
Rating is 4.1 out of five stars based on 7 reviews
$88.50Price
Reviews
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.
I measured with a paper and ended up buying one size larger (it was 12 and with their tape it was 11), so it became a bit loose. But the brand is very good (similar to Galaxy Watch), the brand exercises well too (volleyball). Only the steps that mark much more. The battery lasts well too (about 3, 4 days measuring the information every half hour). Mine got scratched up a bit, but it's understandable since I'm using it everywhere, including playing volleyball on the sand.
The ring does not accurately count the steps taken back. For verification, I used a digital pedometer that was used in parallel with the ring, and the discrepancy is noticeable by several hundred steps. Furthermore, the battery does not last as stated; with moderate use, it drains in less than 2 days. The ring is therefore not useful for me.
Superfast delivery with ring cover extra 😍 , the side button is a game changer, especially reaching the proximity to check the time and functionality. App is pretty easy and quick connect. The only downside is it gets really hot when charged.
Kept up to date with shipping and delivery, but when the package arrived and i checked the fit, it was too large, even though i had used their recommendation on line. Could have used 1 size smaller, but will see how accurate this works.