Features:100% brand new and high qualityNew configuration: using MTK2523G, ARM CORTEX-M4 208MHZ chip, 1.32 inches high-definition color touch screen, 360x360 resolution.GPS: Support GPS/GLONASS/Beido u, 4 satellites/3 types of combined positioning Endurance: The watch has a built-in 580 mAh battery, normal standby: about 25 days; normal use: about 14 days, continuous use of GPS mode: about 40 hours.Waterproof level: 50 meters.Function: Support GPS/GLONASS/Beido u positioning, SpO2 blood oxygen/heart health/Vo2max/pressure value/breathing training/training status/today reminder, 120+ multiple sports modes, compass, multi-dial download (customizable Watch face), smart phone notifications and other functions. Package Includes:1x Smart Watch1x Charging Cable1x Manual Specifications:Model: Zeblaze-StratosGPS: Assisted GPS is used to quickly fix time, air pressure altitude, tilt, ascent and descent.Bluetooth-compatibility: BLE-5.0Charging time: about 2.5 hoursSmartphone compatibility: Android-6.0 or iOS 9.0 and above.OTA upgrade: supportCustom watch face: supportSystem language:English, Japanese, French, German, Italian, Portuguese, SpanishApplication language:English, Japanese, German, French, Spanish, Portuguese, Italian, Russian, Thai, Norwegian, Polish, Turkish, Swedish, Czech, Korean, Ukrainian, Dutch feature:Time/date, GPS time synchronization, alarm clock, timer, stopwatch, countdown, wrist-based heart rate, breathing training, sleep score, calorie burn tracking, compass, smart notification, weather, find-my phone, mobile reminder, pedometer .Sports mode:Basics, indoor fitness, ball sports, water sports,Dance, winter sports, leisure sports, extreme sports.Material: zinc alloy (dial) + silicone (strap)Dial size: 47 x 47 x 14 mmStrap length: 140-230 mm (width: 22 mm)Color: black/blue/green note:1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.