Quantity   Component name
1 × LightBlue Bean Main controller with built-in BLE and accelerometer
1 × 128x64 OLED display To show time, step counts and Heart Rate.
1 × DS1307 RTC To keep time
1 × LiPo Battery Power for the device
1 × LiPo Charger module To charge the battery
4 × Push Buttons To interact with the watch