Smart ring Colmi R12 17.9 mm size 7 black — wearable health & notification ring

The Colmi R12 smart ring in black, 17.9 mm inner diameter (size 7) is a compact wearable designed to provide discreet health and notification functions on the finger. It combines step counting and basic activity monitoring with smartphone notifications in a low-profile metal and polymer ring form that fits everyday wear. The ring connects to a compatible phone to relay incoming call, message, and app alerts while continuously registering motion-based activity data.

Advantages

The Colmi R12 offers a small, unobtrusive design that keeps health and notification features on the finger rather than the wrist. Its 17.9 mm inner diameter size 7 fit is intended for everyday comfort and prolonged wear. The device balances basic activity tracking with notification delivery, enabling users to receive alerts and view simple activity summaries without checking a phone constantly.

Suitable for

• Users seeking a discreet wearable for notifications instead of a wrist device
• People who prefer finger-worn devices for comfort or style
• Those who want basic step and activity awareness throughout the day
• Everyday use where minimal, low-profile tracking is sufficient

Key specifications

• Form factor: wearable ring with 17.9 mm inner diameter (size 7)
• Color: black
• Primary functions: step counting and basic activity monitoring
• Notification support: incoming call, message, and app alerts via smartphone connection
• Wear location: finger

How to use

Place the Colmi R12 on the finger corresponding to the advertised inner diameter (17.9 mm, size 7) so it fits comfortably without restricting circulation. Install the companion app on a compatible smartphone and follow pairing instructions to allow notifications and activity data synchronization. Wear the ring during daily activities to enable continuous step and motion tracking; check the app to view summaries and adjust notification preferences. Charge and maintain the device according to the manufacturer instructions provided with the product packaging.

Recommendations

For reliable step and notification performance, wear the ring on a finger that provides a snug but comfortable fit and keep the companion app running with necessary notification permissions enabled on your smartphone. Remove the ring during activities that may expose it to strong impacts or chemicals, and follow care instructions to preserve appearance and function.