Specifications Hign-concerned Chemical:None Waterproof Grade:3ATM Model Number:xiaomi smart ring Display screen:No NFC Support:No Function:Message Reminder Activity Tracked:Activity Tracker,Steps Tracker,Distance Tracker,Calorie Tracker Metrics measured:Heart Rate Monitor,Blood Pressure Monitor,Sleep Monitor,Blood Oxygen Monitor Item Weight:10 Case Material:Alloy Certification:ce,DOT,FCC,EAC Brand Name:YeasMaie Battery Capacity(mAh):80 Smart Ring For Men Women LED Display Screen Heart Rate Blood Oxygen Monitoring Multi Sport Modes IP68 & 5ATM Waterproof Pk SR08 Features: * High Quality: Stainless steel material has excellent corrosion resistance and can keep the surface smooth and intact even in humid or sweaty environments. This means you can wear it for various activities without worrying about damage caused by environmental factors. * Smart Digital Display: The LED digital display can easily view the current time, steps, heart rate, blood oxygen and sleep time, without having to frequently take out your phone or watch, making time management more convenient. * Multi-function: supports mountaineering, cycling, running and other sports modes, and can monitor the heart rate duration, pace and number of steps in real time to help you explore a bigger world and expand your boundaries. After wearing the ring, it can support accurate measurement of heart rate, blood oxygen and sleep monitoring, and associate data with the mobile phone APP, so that you can pay more attention to your health and help develop good living habits. * Intelligent control: You can easily realize functions such as taking photos and watching video with your mobile phone through simple gesture control. You can slide the video up and down with just a flick of your finger, and you can also control the camera to shoot, so that one person can take beautiful photos independently. * Waterproof: IP68 deep waterproof, whether it is washing hands, showering, swimming, or shallow diving, it can ensure its normal operation without worrying about water entering and affecting the function. Specification: Name: Smart Ring Material: Stainless steel Display: LED digital display Chip: DA-14585 Heart rate sensor: 3918 Storage capacity: 128kb ROM + 96 Kb RAM Operating temperature: -20-60 Charging method: Magnetic charging Compatibility: Compatible with Android 5.0 and above; Compatible with Apple I0S10.0 and above Compatible software: JRing Waterproof: IP68 Inner diameter 19.0mm Color: Black/silver/gold Packing included: 1 * Smart Ring 1 * USB charging cable 1*manual Note: 1. Due to manual measurements and slight color variations, please allow 1-3 cm (0.4-1.18 inches) difference to suit different display settings. 2. Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand