Abstract: A wrist-worn apparatus for monitoring a user's performance while playing golf includes a user input, a processor, a heart rate monitor, a timer, a user input, a display, a processor and a memory for storing a plurality of inputted golf parameters that pertain to a round of golf. The apparatus obtains and displays the user's heart rate, providing feedback on the user's heart rate during a round of golf. In addition, the apparatus can store various inputted golf parameters and compute calculated statistics one or more rounds of golf.

Abstract: Apparatus for tracking net consumption of calories by a user has an input to allow a user to enter the number of calories in food consumed by the user. The apparatus also includes a heart rate monitor and a timer. The heart rate monitor and timer. A processor in the apparatus can calculate the number of calories expended by the user in an exercise session from the duration of the exercise session, as measured by the timer, and the intensity of the exercise session as measured by the timer. The apparatus may be provided as a light weight wrist wearable instrument. The apparatus simplifies tracking the expenditure of calories in exercise and makes it possible to vary dietary constraints on calorie consumption in accordance with the amount of exercise in which the user has participated.