Smart ring Colmi R10 20.8 mm size 11 black — biometric wearable ring

Colmi R10 is a compact biometric wearable ring with a 20.8 mm inner diameter (size 11) finished in black. Designed to be worn on the finger, this smart ring provides continuous on-finger monitoring of basic wellness metrics and daily activity in a discreet form factor. The device focuses on unobtrusive tracking for users who prefer not to wear a wrist device while still receiving sleep, step and general health data through a paired smartphone app.

Advantages

The Colmi R10 offers continuous tracking in a compact, lightweight form that fits comfortably on the finger for all-day and night wear. Its small profile minimizes interference during daily tasks and sleep while maintaining reliable sensing for steps, sleep stages and basic biometric signals. The black finish provides a neutral appearance suitable for casual and formal settings, and the ring’s construction is aimed at durability for routine use.

Suitable for

• Users who prefer finger-based monitoring instead of wrist-worn devices
• Daily activity tracking including step counting and movement monitoring
• Sleep monitoring for detecting sleep duration and basic sleep stages
• People seeking a discreet wearable for continuous basic wellness insights

Key specifications

• Inner diameter: 20.8 mm (size 11)
• Form factor: wearable ring, black finish
• Primary functions: step counting, sleep monitoring, basic biometric sensing
• Wearability: designed for all-day and overnight use on the finger

How to use

Place the Colmi R10 on the finger that provides the most consistent fit—typically the index or middle finger—and ensure the ring sits snugly but comfortably. Pair the ring with the manufacturer’s compatible smartphone app via Bluetooth following the app’s pairing procedure. Wear the ring continuously for accurate activity and sleep tracking; charge and maintain the device according to the app’s battery and care notifications. Review recorded data in the app to monitor steps, sleep duration and other captured metrics.

Usage recommendations

For best results, wear the ring on the same finger consistently and ensure a close skin contact without excessive tightness. Keep the ring clean and dry, and follow app prompts for firmware updates and calibration to maintain accurate sensing. Remove the ring during activities that could expose it to strong impacts or harsh chemicals.