Smart Health Ring: The smart ring supports 24-hour continuous heart rate, also monitor your real-time blood oxygen and blood pressure at any time with one click on the App.An automatic sleep tracker can monitor your sleep status and provide a comprehensive sleep quality analysis (deep sleep, light sleep, and wake-up time), allowing you to develop good sleeping habits. Long Battery Life & Easy to Carry: This smart ring is equipped with a charging case, which eliminates the charging cable, making it easy to carry and store. When used together, it can last up to 100 days, getting rid of the trouble of frequent charging. Sport Smart Ring: Collect everyday steps, calories consumption and distance automatically. Turn on the sport modes in the App, it will additionally track your sport route, activity time and heart art rate during exercise, this allows you know when you should save motivation or keeping exercise hard, also let you know the real-time sport performance. Waterproof Ring: IPX8 waterproof, withstand swimming, washing hands, cold showering and rain, giving you convenience during daily life. Note: please keep away hot water or steam. Gift & Warranty: A perfect gift ring for any man in your life who you want to impress and add style to his wardrobe, suit for any gift giving occasion: Valentine's Day, anniversary, business, birthday, Thanksgiving Day, fathers Day, Christmas etc. Provides 12 months warranty, allowing you to eliminate purchase concerns. If you have any question, contact us freely and we will offer satisfied solution within 24 hours.