1.3 inch Always-on AMOLED Display, Supports Always-on Modes. 360*360 pixels, 326 PPI, 85.2% Screen-to-body ratio. GPS Sensors 12 nm High-end GPS Chip. Integrated GPS, GLONASS, GALILEO, BEIDOU. Assisted GPS for fast fix times. Health & Movement Sensors Wrist Heart Rate Monitor, Pulse Ox Blood Oxygen Saturation Monitor, Proximity sensor, Accelerometer. Water Resistant5 ATM (50M) Bluetooth compatibleBLE 5.0 Battery Life Battery Saver Modes: Up to 25 days Battery Life Typical Usage Scenario: Up to 15 days Battery Life Heavy Usage Scenario: Up to 10 days GPS 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. APP Name: InfoWear Smartphone Compatability: Android 4.4 or iOS 8.2 and above Material Case: Plastic Material Bezel: Alloy Material Button: Stainless Steel Material Buckle: Stainless Steel Wristbands Material: Durable and Comfortable Silicone. Wristbands Width: 22 mm, Compatible with standard 22 mm quick release watch bands. Wrist Circumference: 130-235 mm Dial size: 46 x 46 x 12.9 mm Weight: 52 g with wristband, 32 g without wristband. Durability Operating Temperature: From -40 to 45C. Temperatures below -40C may affect battery life and performance. Specifications: Lighter, sleeker, longer lasting The new ZeblazeStratos2 offers up to 25 days of battery life with GPS tracking, in sport music controls, extensive health monitor features and all at a sweet price point. Features 1.Clock FeaturesTime/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, Sleep Score and Insights, Effective Standing, Calorie Burn Tracking. 2.Daily Smart FeaturesSmart Notifications(Call, Text, Gmail and Smartphone App Notifications), Weather(Check weather in the next four days) , Controls Smartphone Music and Camera, Find My Phone, Find My Watch, Do Not Disturb Modes, Reminders To Move. 3.Activity Tracking FeaturesActivity 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. 4.Sport ModesOutdoor running, Treadmill, Outdoor cycling, Indoor cycling, Outdoor walking, Freestyle, Ping pong, Basketball, Football, Badminton, Cricket, Trail run, Climbing machine, Zumba, Elliptical machine, Pilates, Tennis, Yoga. 5.Watch FaceAPP Sync Qty: 100+ System Default Qty: 3 Always-on Displays Qty: 2 Customize Watch Face: Support Smart watch system language: English, Portuguese, Russian, German, French, Italian, Spanish, Turkish, Polish, Japanese. Application APP language: Chinese, English, Hindi, Spanish, Russian, French, Italian, German, Japanese, Portuguese, Korean, Ukrainian, Polish, Turkish. Device languages: English, Japanese, French, German, Italian. Message Push Language: English, Portuguese, Russian, German, French, Italian, Spanish, Turkish, Polish, Japanese. Package Included: 1*smart watch 1*charger 1*manual