Smart band M3 has 0.96" TFT color touch screen, RT3000B g-sensor, USB interface, bluetooth 4.0, compatible with Android / iOS, Telink 8266 CPU, heart rate monitor / gesture control / pedometer / distance monitor / calorie monitor / sleep monitor, alarm clock, camera remote, 110 mAh battery, 18.4 gm weight, 255 x 18 x 12 mm dimensions.