[Respiratory Activity and Movement Monitor] The smart watch uses a 1.3 inch HD screen. Dial styles are suitable for various occasions, business and sports activities. [Fashionable Multifunctional Smart Watch] Watches with heart rate monitor and sleep monitor let you care more about your health. / calories can be connected to men's and women's watches, can track your progress, and have a variety of exercise modes: walking, running, cycling, etc. [Smart reminder function] Smart activity bracelet with message notification, SMS, APP message notification (Facebook, WhatsApp, Skype, etc.), camera and music remote control, sedentary reminder, alarm, etc. . This smartwatch is compatible with Android 4.4 and Compatible with higher versions of Huawei, Samsung, Xiaomi, etc. And iOS 9.0 and above. ModelZeblaze GTR Bluetooth VersionBluetooth 5.1 ChipGoodix GR5515 Water Resistant30 meters Screen Size: 1.3 inch Screen Type: 2.5D Glass Round Color Touch Screen + IPS Operating System compatibleAndroid and iOS Compatibility: Android 4.4 / iOS 9.0 and above system APPH band APP Language Push Message Language: Chinese, Japanese, Korean, Latin, Cyrillic; Latin includes: (English, French, Spanish, Portuguese, German, Dutch, Vietnamese, Northern European, Central European, Southern European, Italian, Southeast Asian, African); Siri Irvine includes: (Russia, Eastern Europe, Asia), covering 150 countries SensorHeart rate sensor, proximity sensor, accelerometer. Battery typePolymer lithium battery Battery capacity: 180mAh Standby time: 30 days (power saving scenario); 18 days (typical usage scenario) Charging timeAbout 1.5 hours Outstanding Features All-day heart rate monitoring (abnormal heart rate alert), blood pressure monitoring, 10 goal-based exercises, tracking female cycle tracker, sleep quality monitoring, step tracking, calorie burn tracking, daily step goal, real-time pace and Distance, goal celebrations, movement reminders, smartphone notifications, dismiss/mute in one click, weather forecast, countdown and stopwatch, alarm clock, multi-watch faces, find phone, wrist rotation detection, music control, photo taking. Alert typeVibration Case material: metal body Bezel material: 2.5D glass Band material: Silica gel Dial size: 45*45*11.6mm Product weight51g Box contents Package: 1 x GTR, 1 x Strap, 1 x Cable, 1 x User Manual (English, German, Spanish, Portuguese, French, Japanese.)