Smartwatch Men, Smartwatch Waterproof IP68 Smart Watch Bluetooth Activity Trackers with GPS Pedometer Heart Rate Monitor Sleep Monitor 400mAh(Green) The product is shipped based on the color or size of the main image of the product page. ⌚ 【Military grade standard】 ANSUNG Outdoor smart watch has 10 military grade certifications and withstands harsh environmental conditions: 70 ℃ heat resistance, -40 ℃ cold resistance; 120 hours resistance to humidity, 96 hours resistance to salt spray.⌚ 【Multifunctional smart watch】 Activity trackers (pedometer, distance, calories), heart rate monitor, 10 sports modes, shared GPS, sleep monitoring, message notification (Call, SMS, Facebook, Twitter, ...), search cellphone, music control, stopwatch, countdown timer, Sedentary setup, alarm setup, photography, female monthly period management, 10 selected dial modes.⌚ 【Long-lasting battery】 10 days of battery life with a typical use scenario, 30 days with a simple use scenario and 20 hours with Bluetooth phone calling continuously on, for iOS Android.⌚ Sleep & Heart Rate Monitor】 The smartwatch has a built-in optical sensor, which can not only monitor your heart rate and blood pressure in real time 24 hours a day, but also automatically track your quality of sleep. night (to help you understand and improve the quality of sleep). When you use this smartwatch, it can tell your health anytime, anywhere.