Feature: 1. FITNESS TRACKING: Check your activities effortlessly with real time measurement of calories burned, steps taken, and distance traveled. All fitness data is accumulated throughout the day and resets automatically at midnight, historical data is preserved for up to seven days. 2. MAGNETIC QUICK CHARGING: Wireless smart ring supports fast charging, powerful 18mAh capacity battery, providing extended usage time with real time battery viewing accessible through the app. 3. BLUETOOTH CONNECTIVITY: Seamlessly connect your smart ring via Bluetooth 5.0 after downloading the dedicated app. The low battery alert feature, activated every minute with two red flashes, ensures you're always informed of your device's status. 4. IP68 WATER RESISTANT: Designed with an all sealed structure and IP68 water resistant technology, this fitness ring easily withstands everyday water exposure, allowing you to wear it while swimming, washing your hands, or during rainy weather without worry. 5. STYLISH DESIGN: Crafted with a stainless steel exterior and polished through CNC techniques for exceptional durability, this activity ring also features a smoother resin inner shell, combining aesthetics with comfort for a stylish yet functional accessory. Specification: Item Type: Smart Ring Material: Stainless Steel Ring Battery Capacity: 18mAh battery (built in battery). Package List: 1 x Ring 1 x User Manual 1 x Charging Cable