https://www.futureelectronics.com/m/microchip . High-end wearable activity trackers can take step count, temperature, light and other movement and environment measurements. Microchip’s Ultra Low-Power or ULP Connected, Wearable Activity Monitor Demonstration Board can be used as the starting point for the design of medical home monitoring, patient tracking and drug delivery compliance devices. https://youtu.be/hIcIEwWiHoU