Please note, dongle not included.

Track steps, distance, calories burned.
Upload wirelessly on computers, iPhone 4S or later, Bluetooth 4.0 or Bluetooth Smart Ready devices.
With Fitbit's free iPhone and Android apps and website, you can set goals and track how active you are throughout the day.
Sweat, rain and splash proof.
Includes tracker, matching clip, wireless USB dongle, battery tool.
New battery has been installed.  Takes one 2025 battery.