Real-time Health Monitoring:The smart ring has the latest sensors that can track heart rate, blood oxygen, blood pressure and other data in real time 24 hours a day. It can also monitor sleep quality, record deep sleep, light sleep, eye movement and wakefulness. You can view various indicators anytime and anywhere on the application "SMARTRING" and adjust your lifestyle based on daily/weekly/monthly reports.Multiple Sports Modes & Activity Tracking:This fitness tracker supports multiple sports modes, including common daily exercises such as running, cycling, walking, skipping, swimming, etc. It can also record your steps, exercise distance, activity trajectory, calorie consumption and other exercise data. You can set exercise goals in advance, make a reasonable exercise plan, and improve your exercise efficiency.Gesture Control & Convenient Functions:The smart ring enables remote control for taking photos, flipping e-book pages, switching short videos, and pausing or playing music. With a simple double-tap of your finger in the air, enjoy effortless air gesture control. This intuitive feature frees your hands and makes everyday tasks more convenient and efficient.Fast Charging & Wide Compatibility:This ring can be charged in two ways: with a charging cable and with a charging box. It only takes 60 minutes to fully charge. Under normal circumstances, it can be used for 3-5 days and has a standby time of 7-10 days. It is also widely compatible and can be paired with phones running Android 6.0 or iOS 11.0 or above.IP 68 Waterproof & Comfortable Material:This sports ring provides IP68 waterproof protection, and you can use it with confidence without taking it off when washing hands, swimming and taking a bath. Made of epoxy resin and stainless steel, it is comfortable and lightweight to wear, without any foreign body feeling, ensuring all-day wearing comfort and durability.Various Size & Excellent Gift:This fitness ring is available in a variety of sizes. You can measure the circumference of your finger and refer to our size recommendations to choose the size that suits you. No matter which size you choose, its thinness and weight will make you hardly feel its presence when using it. The ring has a sophisticated and fashionable design and is also a great gift for your partner/family/friends.