the GPS smartwatch with a striking AMOLED display and up to 40 days of battery life.Specifications:1.78 inch Always-on AMOLED Display, Supports Always-on Modes.390*450 pixels, 341 PPI, 74.3% Screen-to-body ratio, Up to 1,000nit BrightnessGPS Sensors12 nm High-end GPS Chip.Integrated GPS, GLONASS, GALILEO, BEIDOU.Assisted GPS for fast fix times.Health & Movement SensorsWrist Heart Rate Monitor, Pulse Ox Blood Oxygen Saturation Monitor, Proximity sensor, Accelerometer.Water Resistant5 ATM (50M)BluetoothBLE 5.0Battery LifeBattery Saver Modes: Up to 40 daysTypical Usage Scenario: Up to 15 daysHeavy Usage Scenario: Up to 10 daysGPS Continuous Usage Scenario Battery Life: Up to 40 hours.Charging Time: About 1.5 hours*Battery life may vary according to usage, settings, operating conditions, and other factors, so the actual results may differ from the laboratory data.Download APPAPP Name: F FitSmartphone Compatability: Android 4.4 or iOS 8.2 and aboveLanguageSystem Language: English, Portuguese, Russian, German, French, Italian, Spanish, Turkish, Korean, Japanese.F Fit APP Language: English, Portuguese, Russian, German, Spanish, French, Italian, Japanese, Korean, Malay, Polish, Greek, Thai, Romanian, Bulgarian, Hungarian, Turkish, Czech, Slovak, Danish , Norwegian, Swedish, Filipino, Ukrainian, Vietnamese, Dutch, Croatian, Arabic, Indonesian.Message Push Language: English, Portuguese, Russian, German, Spanish, French, Italian, Japanese, Korean, Malay, Polish, Greek, Thai, Romanian, Bulgarian, Hungarian, Turkish, Czech, Slovak, Danish , Norwegian, Swedish, Filipino, Ukrainian, Vietnamese, Dutch, Croatian, Arabic, Indonesian.Features:Clock Features: Time/Date, GPS Time Sync, Automatic Daylight Saving Time, Alarm Clock,Stopwatch, Countdown.Health Monitoring: Wrist-based Heart Rate (Constant, Every Minute) , Daily Resting Heart Rate, Abnormal Heart Rate Alerts, SpO2 Level Measurement, VO2 max, Breath Training, Sleep Score and Insights, Calorie Burn Tracking.Daily Smart Features: Smart Notifications(Call, Text, Gmail and Smartphone App Notifications), Weather(Check weather in the next four days) , Flashlight, Controls Smartphone Music and Camera, Find My Phone, Find My Watch, Do Not Disturb Modes, Reminders To Move.Activity Tracking Features: Activity Record, Step Counter, Standing, Move Bar (Displays on device after a period of inactivity of inactivity; Walk for a couple of minutes to reset it), Auto Goal (Learns your activity level and assigns a daily step goal), Calories Burned, Real-time Pace & Distance.Sport Modes:Outdoor running, Treadmill, Outdoor cycling, Indoor cycling, Outdoor walking, Freestyle, Ping pong, Basketball, Football, Badminton, Cricket, Trekking, Trail run, Climbing machine, Zumba, Dance, Elliptical machine, Pilates, Tennis, Yoga.Watch Face:APP Sync Qty: 100+System Default Qty: 4Always-on Displays Qty: 2Animated Watch Faces Qty: 1Customize Watch Face: SupportMaterial:Case: Aviation AluminumButton: Aviation AluminumBuckle: Stainless SteelWristbands:Material: Durable and Comfortable Silicone.Width: 22 mm, Compatible with standard 22 mm quick release watch bands.Wrist Circumference: 130-220 mmMeasurements:Dial size: 45 x 37 x 10.5 mmWeight: 42 g with wristband, 23 g without wristband.Durability:Operating Temperature: From -40 to 45C. Temperatures below -40C may affect battery life and performance.