N68 Pro Activity Tracker
Nordic nRF52832 ARM Cortex M4 based activity tracker with color OLED, KX126 accelerometer, 8MB SPI FLASH Memory, heart rate sensor and touch sensor
Black, Red, Green 3D Printer ABS Plastic Filament + Use of 3D Printer
Color choices are optional. If you want to do acetone plastic welding like I show it needs to be ABS plastic.