Features 1、Smart Ring Health Tracker: By analyzing key data such as movement, this advanced sensor equipped smart ring observes your health status, helping you stay aware of your well being. 2、Combining Fashion and Technology: The smart ring is lightweight, fashionable, and comfortable to wear. Energy saving technology ensures 7 days of continuous operating on a single charge, and the APP is compatible for Android, so you can view your data at any time. 3、Multifunctional Ring: The smart ring has a variety of functions, such as body temperature, sleep, step counting, etc., which allows you to observe your health data at any time. Water and dust resistant, hand washing, bathing, swimming and other types of daily water related scenes to wear at will. 4、Active Life Style: It is not just a health monitoring device but also an active life style choice. By recording and analyzing your health data, it motivates you to choose a better lifestyle to maintain health, vitality, and balance. Whether you are into fitness, prioritize sleep, or want to effectively manage stress, the health tracker ring provides personalized suggestions and guidance. 5、Nice Present: Smart health ring is a unique and thoughtful present for friends and family. It's a special present for weddings, graduations, or housewarming parties. Experience comfortable wear, making your loved ones feel appreciated. Specification Item Type: Smart Ring Health Tracker Material: Stainless Steel Built in Battery: Li Ion Battery 20mAh Ring Battery Life: About 7 Days Ring Charging Time: 45 Minutes App: for Smart Health Applicable Size: US Size 9 Fits: Finger Circumference: 59.5mm / 2.3in, Inner Diameter: 18.9mm / 0.7in Package List 1 x Smart Ring Health Tracker 1 x USB Cable 1 x Instruction Manual