Inner Diameter(mm)16#15.4mm, 18#17.8mm, 20#19.8mm, 22#21.5mm
Weight:4.7g
Color: Silver, Black, Gold
Main function: Steps, distance, calorie counting
, Heart rate, Blood Oxygen, Body fatigue, sleep Monitoring
APP:LuckRing
Compatible System: Android 5.1 or Above, IOS8.0 or Above
Battery Capacity: 15mAh
Charging Method: Magnetic Charging
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, Simplified Chinese, Traditional Chinese, Romanian, English, Dutch, Portuguese, Spanish, Vietnamese, Arabic, Korean, Malay. (Same as mobile phone)
Waterproof Level: IP68
Charging time: about 1-2 hours
Life time: 5-7 days, Standby time 15-20 days
Appearance material: Aluminum alloy / stainless steel, customizable