Smart Stainless Steel Smart Ring for Activity and Remote Control Why choose this ring Compact and discreet wearable that replaces bulky wrist devices. At just 6 mm wide, it feels lightweight and comfortable for allday wear. Combines activity tracking, heart rate monitoring, and remote control into a single stainless steel ring so you can monitor daily activity and capture photos or short videos without extra devices. Syncs with the Jring app to review trends and activity summaries on your smartphone. Key functions Pedometer: tracks steps, calories burned, and distance traveled. Heart rate monitor: continuous heart rate sensing and trend display in the app. Exercise monitor: multiple exercise modes for walking, running, cycling, and climbing. Sleep tracker: records sleep duration and sleep stage data for nightly review. Remote camera and video control: trigger your phone camera or navigate short video feeds with simple gestures. Hardware and performance Bluetooth 5.1 for stable connection. Ring battery: 16 mAh. Full charge time: about 2 hours. Charging requirement: use 1 A or less. Charging case included. Standby time: one full charge provides approximately 5 to 7 days of typical working time. App: Jring. Compatible with iOS 11.0 or above and Android 9.0 or above. Water resistance and care IP68 waterproof rating provides protection against splashes, showers, and short submersion. Not suitable for hot water bathing, diving, swimming, or waterrelated work. Avoid prolonged exposure to water and temperature environments. Material and fit Ring material: stainless steel. Comfortable 6 mm width. Available sizes: Size 7: inner diameter 17.4 mm (0.67 inch), circumference 54.6 mm (2.13 inch) Size 8: inner diameter 18.2 mm (0.71 inch), circumference 57.1 mm (2.23 inch) Size 9: inner diameter 19.0 mm (0.74 inch), circumference 59.6 mm (2.32 inch) Size 10: inner diameter 19.9 mm (0.76 inch), circumference 62.5 mm (2.47 inch) Size 11: inner diameter 20.7 mm (0.81 inch), circumference 65.0 mm (2.53 inch) Size 12: inner diameter 21.5 mm (0.84 inch), circumference 67.5 mm (2.64 inch) Package contents Smart Ring x1 Charging case x1 Manual Practical use scenarios Daily activity tracking: wear the ring during a morning run to record steps, distance, calories, and heart rate trends, then review the session in the Jring app. Hands photography and video: use the ring to trigger your phone camera for group photos, solo portraits, or to control short video playback while creating content. Sleep and recovery insight: wear the ring overnight to capture sleep duration and sleep stage data for morning review and planning of the day. Support For questions or assistance, contact the seller through the platform.