Zyyini Smart Ring - Stainless Steel BT5.1 IP68

Spec: Item Type: Smart Ring Material: Stainless Steel Ring Battery: Lithium Ion Battery (Built In) Capacity: 18mAh BT Version: BT5.1 Operating Time: 5-7 Days Charging Time: 1H Waterproof Rating: IP68 Charger Requirement Specification: Charging 1A or less than 1A APP: Q Ring (for Android, for IOS Store Download or Cell Phone Scanning Manual QR Code Download) System Requirements: for Android: 5.1 or for iOS: 8 or Higher Functions: Body Temperature Detection, Remote Control to Take Pictures, Multiple Exercise Modes, Sleep Monitoring (Sleep Time, Sleep Quality), Pedometer, Synchronized Data for IOS Health, App and Other Functions Supported Languages: Danish, Ukrainian, Russian, Croatian, Hungarian, Hindi, Indonesian, Turkish, Hebrew, Greek, German, Italian, Latvian, Czech, Slovak, Slovenian, Japanese, French, Polish, Thai, Estonian, Swedish, Lithuanian, Chinese (Simplified), Chinese (Traditional), Romanian, English, Dutch, Portuguese, Spanish, Chinese (Simplified), Chinese (Traditional), Chinese (Simplified), Chinese (Traditional), English (Simplified), Chinese (Simplified), Dutch, Portuguese, Spanish, Chinese (Simplified), Chinese (Simplified) Dutch, Portuguese, Spanish, Vietnamese, Arabic, Korean, Malay How to Use: Take out the product reference manual for use. packing list: 1 x Smart Ring 1 x USB Cable 1 x Manual Notice: Manual measurement please allow some error.