A smart satellite antenna array boosts the accuracy of HUAWEI WATCH GT 4 46 mm's GNSS signals by 30%, to keep you on track in avenues, parks or residential units. And with a smart fusion positioning algorithmThe new Stay Fit app backed by HUAWEI TruSeen 5.5+ tech helps you keep track of how many calories you're consuming at a glance, with high-level metrics like real-time calorie intake, active calories, resting calories, and calorie deficitPro-Level Health Management Pulse Wave Arrhythmia Analysis, upgraded HUAWEI TruSeen 5.5+ Heart Rate Monitoring, SpO2 Monitoring, Intelligent Cycle Tracking, TruSleep, Sleep Breathing14-Day Battery Life You can enjoy 8-day battery life for typical usage and up to 14-day battery life for given special conditionsConvenient in daily life and Broadly compatible bluetooth calling, Calendar reminder, SMS quick reply, Watch face store. HUAWEI watch GT 4 is compatible with both iOS and Android, for greater ease of useOverviewHUAWEI WATCH GT 4 is water-resistant to a depth of 50 meters, and can last 14 days. It features a variety of fitness, health, and lifestyle features, and therefore is suitable for both daily use and professional workouts.SpecificationsMaterial Stainless SteelColour Name GreyDepartment UnisexDisplay Type AMOLEDConnection Type GPSFace/Dial Shape RoundWhat's In The Box Watch, Wireless Charging Cradle, Quick Start Guide, Safety Information, Warranty CardBand Size Medium/LargeSmartwatch Dial Size 46 mmModel Number Phoinix-B19M, PNX-B19Model Name Huawei Watch Gt 4