Waterproof grade:IP68 Screen:1.28 inch Pedometer:Yes Calorie counter:Yes Heart rate:Yes*Battery: 200mAh *Compatible system: Android 4.4 and above, IOS 8.0 or above *Screen:1.28 inch IPS 240*240 color more→ful *Touch: Full Touch *Charging time: about 2H *Working Time:1-3 days,standby 7 days or so *Waterproof rating:IP68 waterproof (you can wear it to rain, wash hands, even swim, but don't put it into hot water or operating underwater) *APP and Message language support:English, Arabic, Czech, Dutch, French, German, Indonesian, Italian, Japanese, Korean, polish, Portuguese, Russian, simplified Chinese, Spanish, Thai, traditional Chinese, *Device Menu Language: Chinese, English, Korean, Japanese,