1. A system for determining if a continuous analyte sensor has been reused based on an end of sensor life evaluation, the system comprising sensor electronics configured to be operably connected to a continuous analyte sensor, the sensor electronics configured to: evaluate sensor data obtained by the continuous analyte sensor with a plurality of risk factors associated with end of life symptoms of a previously-used sensor, wherein the plurality of risk factors comprise at least two risk factors selected from the group consisting of a rate of change of sensor sensitivity, end of life noise, a magnitude of sensor values in clinical units, analyte patterns, and error between reference values and sensor values in clinical units; produce a sensor profile of the continuous analyte sensor by performing an end of life function on the evaluated sensor data with the plurality of risk factors, the produced sensor profile including two or more metrics associated with sensor sensitivity, noise, signal magnitude, analyte pattern, or calibration error; determine a sensor reuse status of the continuous analyte sensor by comparing the sensor profile to a standard profile of a sensor associated with a new sensor session; and provide an output related to the reuse status of the continuous analyte sensor; wherein the sensor electronics is configured to disable displaying of sensor data in response to the provided output.