Various implementations described herein are directed to a wearable device used to determine whether motion data and heart rate data correspond to a fishing activity. The wearable device may include a heart rate sensor and a motion sensor. The wearable device may include a computer system with a processor and memory. The memory may have a plurality of executable instructions. When the executable instructions are executed by the processor, the processor may receive motion data from the motion sensor, receive heart rate data from the heart rate sensor, and determine whether the received motion data and heart rate data corresponds to a fishing activity.
