Zeblaze Ares GPS Rugged GPS Smart Watch, Support Heart Rate Pulse Ox Blood Oxygen 1. Material: Two-color Plastic Parts + Stainless Steel Navigation Crown + Durable and comfortable silicone strap 2. Screen size: 1.75 inch IPS screen 3. Resolution: 240 x 296 pixels 4. Battery capacity: 380mAh 5. Normal time: About 14 days 6. Use time: About 7 days 7. Voice Call Duration: About 473 minutes 8. Charging Method: Magnetic Charging Cable 9. Charging time: About 1.5 hours 10. Support system version: Android 5.0 or iOS 10.0 and above 11. Sensor: Integrated GPSBDS (Assisted GPS for fast fix times), Gravity sensor, Proximity sensor, Accelerometer, Wrist Heart Rate Monitor, Pulse Ox Blood Oxygen Saturation Monitor 12. Bluetooth: BLE 5.3 13. APP Name: Fitbeing 14. Watch Band: 18mm width, compatible with standard 18mm quick release watch bands. 130-235mm wrist circumference 15. Dial size: 47 x 40 x 12.7mm 16. Weight: 47g with wristband, 29g without wristband Languages: 1. System: English, Deutsch, French, Italiano, Spanish, Portuguese, Russian, Japanese, Turkish, Vietnamese, Polish. 2. Fitbeing APP: Chinese, English, German, French, Spanish, Italian, Japanese, Russian, Portuguese, Turkish, Thai, Korean, Estonian, Lithuanian, Latvian, Bulgarian, Greek, Polish, Vietnamese, Czech, Slovak, Hungarian, Malay, Indonesian, Hindi, Hebrew. 3. Message Push: English, German, French, Spanish, Italian, Japanese, Russian, Portuguese, Turkish, Estonian, Lithuanian, Latvian, Bulgarian, Polish, Vietnamese, Czech, Slovak, Hungarian, Malay, Indonesian. Features: 1. Sports Features: 60+ Sports ModesRoute Import, GPS-Based Distance, Time and Pace, Customize Activity Goal, Real-time Steps, Avg Speed, Avg Pace, Min Heart Rate, Max Heart Rate, Avg Heart Rate, Calories, Heart Rate Range(Warm up, Weight reduction, Endurance, Anaerobic, Extreme), Activity History on Watch. Outdoor Running, Outdoor Walking, Trail Running, Hiking, Outdoor Cycling, Indoor Running, Indoor Walking, Indoor Cycling, Pool Swimming, Open