To reduce unforeseen heart attacks. If more people had access to sophisticated heart rate monitoring technology and prevent it in time. Our Advanced waterproof smartwatch product helps you keep track of your health. Our smart watch adopts a polycarbonate, glass fiber, and zinc alloy metal frame, which has the characteristics of high strength and hardness without degumming or discoloration for a long time. It has excellent waterproof, anti-fall, and dust-proof performance. The activity tracker watch supports 24/7 blood oxygen, heart rate, blood pressure monitoring, and sleep tracking, so you can get a better understanding of your physical condition. And it is equipped with a 1.32 inch HD full touch screen, the display with 360×360 resolution for a better visual experience. Besides, after you have connected your smartwatch to your mobile phone, you can make and receive calls with built-in speakers and a microphone. Buy it now!