HUAWEI WATCH GT3 42mm is a smartwatch with 7-day battery life and 5 ATM water resistence. It integrates workout monitoring, music playback, HUAWEI TruSleep, heart rate monitoring, Bluetooth calling, NFC, GPS and wireless charging. The product is suitable for both daily use and professional sports. Up to 7 Days of Battery Life: On a full charge, HUAWEI WATCH GT 3 42 mm lasts up to 7 days so you're fully prepared to keep track of your every workout and not miss out on any health check. Accurate GPS & Heart Rate Tracking: The AI algorithm has been upgraded to filter out noisy signals more effectively, allowing more accurate heart rate monitoring even during strenuous exercise. The HUAWEI WATCH GT 3 provide higher signal immunity, enabling accurate positioning.