Main Features:• Size:43.42*24.56*8.99mm• Weight :14 g• Screen:1.47” AMOLED touch screen ,2.5D Glass lens 194*368,PPI 282• Strap:TPU(Black),silicone(pink and green),Nylon• connection:Bluetooth BLE 5.0• Sensor : 6-axis A + G Sensor, PPG• Battery:2-week battery life, 5-minute charge for two day usage• Water resistance: 5ATMThinner than thinner, insensible wearing experience• New ID style, compare with previous generation, with a new fashion small vertical edgedesign, style more concise personality.•1.47” AMOLED bezel-less screen, optimizing the narrow black edges on the top and bottomof the screen, providing better visual experience• 8.99 mm thin, 2 g less weight than the previous generationTrusleep3.0 provide you soundly sleep• Upgrade to TruSleep3.0 technology: supports micro-motion monitoring, such as sleep atthe aircraft. And the accuracy is 10% higher than that of the previous generation.• Sleep data sinks to the Band, and sleep information is visible when you lift your wrist.• Provide Smart sleep improvement program for a good night's sleep