Smart Ring Bluetooth 5.1 Sleep Camera Remote Control Multiple Exercise Modes Wearable Fitness Ring Item Type: Smart Ring Material: Stainless Steel Ring Battery: Polymer Lithium Ion Battery (Built In) Capacity: 18mAh Bluetooth 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 Above for iOS: 8 or Higher Functions: 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