DATA COLLECTION DEVICE WITH REMOVABLE BATTERY PACK

An activity tracker includes a device that includes a sensor component, a radio, a housing, and a removable portion. The sensor component is configured to obtain bicycle route information based on one or more sensors. The radio is configured to wirelessly communicate the bicycle route information to a remote computing device. The housing includes at least a portion of the sensor component and the radio. The removable portion includes a battery. The removable portion and the housing, when coupled, create a watertight seal to protect electronic components of the device.