Smart Tracking Ring R08 WaterproofSmart Tracking Ring R08 Waterproof from Etegon. Review the listed specifications and select the configuration that suits your needs.HighlightsModel Number: R08SpecificationsActivity Tracked: Activity Tracker,Steps Tracker,Distance Tracker,Calorie Tracker; Battery Capacity(mAh): 15mAh (7#~9#), 18mAh(10#~13#); Brand Name: other; Case Material: STEEL; Certification: ce,FCC; Charging Case: 200mAh; Display screen: No; Item Weight: About 3.7g; Memory storage capacity: RAM104KB FLASH 512KB; Metrics measured: Heart Rate Monitor,Sleep Monitor,Blood Oxygen Monitor,Stress Monitor; Model Number: R08; NFC Support: No; Origin: Mainland China; Waterproof Grade: 5ATM.OptionsGold / 7; Gold / 9; Gold / 10; Gold / 12. See the selector for additional choices.FAQs What is it? A smart tracking ring; see the details above. Which version can I choose? Options include Gold / 7; Gold / 9. How do I check suitability? Match the listed size, model, and compatibility details to your requirements. What is included? Check the package information for your selected configuration. What should I confirm before ordering? Review your selection, quantity, specifications, and delivery details. Related Products Mood Ring Heart Ring COLMI Ring COLMI Ring COLMI Ring Moissanite Ring Moissanite Ring Moissanite Ring COLMI Ring Smart Ring Uhoofit Ring Upgraded Ring