OverviewModel Battery: GT6 HERO 3 Smart Watch Band: 200-300 mAh SIM Card: None Memory card: None Compatible system: IOS/Android system Android system: Support Android 4.4 and above IOS system: Apple IOS 10.0 or above Functions: wireless charging, Bluetooth voice calls, display health data of relatives, bank, pedometer, taste measurement Temperature, distance measurement, sports conditions, arm movement generation, sleep analysis, call reminder, message notifications, sit/stand alert, built-in alarm, stopwatch, find time, weather forecast, lock screen, call screen, mat, support 3D electronic communication, blood pressure measurement, music control, breathing exercises, pulse measurement, blood pressure measurement, calculator, social media notifications, brightness adjustment, NFC, power saving mode. Supported languages: Turkish, English, Chinese, Traditional Chinese, Martian, Greek, Latin, Romanian, Czech, Czech, Spanish, German, Russian, Deutsch, French, Japanese, Japanese, Vietnamese, Arabic, French are acceptable IP68 The watch can be used normally When washing hands and rainy days, but not allowed to swim Waterproof. (Please be careful that corrosives such as hand sanitizer and soap can enter the watch and cause damage to the components.) What's in the box: Smart Watch GT6 HERO 3 Band + 3 Bands (Silicone, Metal, Leather) + Wireless Charging Cable + User Manual