Patent ID: 8040758

Claim:
A wristwatch for monitoring a user's performance during a round of golf on a golf course, the golf course having a plurality of holes, the wrist-worn apparatus comprising: a housing; a strap attached to the housing for securing the housing to the user's wrist; a user input on the housing; a processor located in the housing and connected to receive information from the user input; a heart rate monitor connected to the processor, the heart rate monitor including a plurality of sensors exposed on at least two surfaces of the housing; a timer located in the housing and connected to the processor; a memory located in the housing and accessible to the processor, the memory including a memory location for storing a plurality of inputted golf parameters, the plurality of inputted golf parameters pertaining to the round of golf; a display on the housing, the display being connected to the processor, wherein the processor is adapted to present on the display a heart rate of the user, and the processor is adapted to compute and present on the display at least one calculated statistic for the round of golf; the heart rate monitor neither transmits nor receives heart rate information wirelessly; wherein the processor is adapted to compute a heart rate variability from a heart rate obtained by the heart rate monitor; and the processor is adapted to present on the display an indicator of when the user has achieved a balance between the user's sympathetic and parasympathetic nervous systems, the processor determining the balance based upon the user's heart rate variability.