Fitbit Charge 3 Special Edition Graphite/White Grade B Preowned

Features:
Display
Touchscreen
Grayscale OLED
Sensors & Components
3-axis accelerometer
Optical heart rate monitor
Altimeter
Vibration motor
Relative SpO2 sensor
General
Fitbit Charge 3 is water resistant to 50 metres
Certain features like smartphone notifications may require Android 5.0+.