DLC (Diamond-Like Carbon): Coated with Diamond-Like Carbon, this band is extremely scratch resistance, maintaining unprecedented resistance to the elements Titanium links and buckle: this band takes advantage of the natural properties of titanium, offering a smooth and lightweight structure The replaceable watch strap compatible with Apple Watch 44mm series 5/4, 42mm series 3/2/1 smartwatch
⌚HD Highlighting Full View：Our smart watch offer up to HD 1.08-inch color screen provides an excellent vissual experience. ⌚Wrist-based Optical Heart Rate：24-hour watch your blood pressure, heart rate with opical heart rate sensor, giving you comprehensive care. ⌚IP67 Waterproof：Hermetic design makes it perfect to wear. Washing hand, Swimming, Having a cold shower or even walking in a rainy day, no worry about that. For this smartwatch, no problem.