Specifications

  • Dimensions: 37.5 x 40 x 11mm
  • Weight: 38 grams
  • IP Rating: IP67 (waterproof to 1 meter (sealed edition))
  • Display:
    • Size: 1.3 inches (33mm) diagonal
    • Type: IPS capacitive touchscreen, RGB 65K colors
    • Display Controller: ST7789
    • Resolution: 240x240 pixels
  • System on Chip: Nordic Semiconductor nRF52832
  • Flash: 512KB with additional 4MB SPI NOR
  • RAM: 64KB
  • Bluetooth: 5.0 (including Bluetooth Low Energy)
  • Sensors: Accelerometer, Heart rate sensor
  • Feedback: Vibration motor
  • Battery: 170-180mAh 3.8V LiPo