Bluetooth Calls and Smart Notifications: Compatible with Bluetooth 5.2 and above smartphones, this digital watch has built-in watch microphone and speaker to receive and make calls at any time, so you won't miss important calls from family and friends while you're playing sports or at work. At the same time, men sport wrist AI supports voice assistant and messages reminder, AI voice assistant can help you use the watch more easily, support Facebook, Twitter, WhatsApp smart notification reminder.1.57-Inch Touch Screen : The 1.57"inch IPS TFT full touch display screen rectangular smartwatch is for men, with a screen resolution of 200*320, adjustable brightness screen and blackout time Settings, giving you an extraordinary tactile, visual experience. 20Day+ Super Battery Life--With 290mAh 100% pure cobalt-battery (military qualitat).Chronus Smart watch with super power-saving AI algorithm, that revolutionizes the power efficiency by minimizing energy consumption like never before. If normal use, the battery life can last up to 1 week；when power-saving mode, it can sustain the use of features like sports mode and health index measurement for 20+ days without interruption.Health Monitoring: This health monitoring watch uses advanced sensor technology to monitor blood oxygen and 24-hour heart rate monitoring, and it also has a heart rate reminder function to track your health at any time. In addition, the smartwatch automatically monitors your sleep status (deep sleep, light sleep, sober) and provides a comprehensive analysis of sleep quality, so you can start getting better sleep now. (The data is for reference only and cannot be used as a medical basis.)100+ Sports Modes and IP67 Waterproof Rating: This exercise smartwatch has 107 sports modes, including (walking, running, outdoor cycling, badminton, skipping, basketball, football, mountaineering, etc). Connect the phone APP and GPS,and can also visually read sports data (calories, distance, step count, time) in the watch. IP67 waterproof rating, can cope with splashing, sweating, wet environment and other condition but does not support swimming, soaking, seawater and hot water environment use.