Features15 workout modesFull-time fitness trainerSleep tracking & pressure monitoringBattery life: up to 7 daysSmart notificationsHUAWEI Kirin A1 Self-developed ChipThe Huawei Watch GT2 comes with HUAWEI\'s self-developed wearable chip Kirin A1, and intelligent power saving technology to provide up to 7 days of battery Life. System requirements: Android 4.4 or later and iOS 9.0 or later15 Workout Modes & Full-time Fitness TrainerMultiple professional training courses from entry to advanced level are preinstalled on the watch, providing users with professional and effective guidance.Everyday Life FeaturesSupports features like Message Notification, TruSleepTM 2.0 sleep tracking and TruRelax pressure monitoring. Track your fitness progress all day like your step count, calories burned, the number of times you stand up, and periods of medium to high intensity activities.