Specification: Chip: 7012A6S APP: CO-FIT Compatible systems: Android5.0 and above, IOS9.0 and above Memory: RAM: 640KB, ROM: 2MB, Flash: 128M Screen type: AMOLED Screen size: 1.43 inches Pixel: 466*466 Touch type: Full screen touch Bluetooth: BT5.2 WIFI: Not supported NFC: support Gravity sensor: Support Gyroscope: Not supported Heart rate: VP60 GPS: Not supported Battery type: lithium polymer Capacity: 260mAh Charging method: Magnetic charging cable CO-FIT: Download massive watch dials, upload photos, step counting, heart rate, sleep, sedentary time, mileage, blood oxygen, blood pressure, mobile search, calories, Bluetooth, information, WeChat, QQ and other push notifications Search function, alarm clock setting, drinking water reminder, gesture control, do not disturb mode, reminder mode Phone call, SMS, WeChat, QQ, Facebook, Twitter, Instagram, Skype, WhatsAPP, Line, Kakao Talk, etc. Supported languages: Danish, Ukrainian, Urdu, Russian, Hungarian, Indonesian, Turkish, Bengali, Hebrew, Greek, German, Italian, Czech, Japanese, French, Polish, Thai, Swedish, Simplified Chinese, Traditional Chinese, Finnish, English, Dutch, Portuguese, Spanish, Vietnamese, Arabic, Korean Waterproof grade: IP67 Charging time: about 2H Battery life: about 5-7 days of use, 30 days of standby Product languages: Chinese, English, German, Russian, Portuguese, Spanish, French, Japanese, Arabic, Dutch, Italian, Czech, Greek, Hebrew, Indonesian, Korean, Malaysian, Polish, Thai, Vietnamese, Finnish, Romanian, Turkey, Croatia Message reminder language: text display Material: main body: alloy + tempered glass, wrist strap: silicone strap