NOVELTY - The device (100) has an article for wearing (110) to releasably fix the device to individual's body. A capacitance touch screen display (140) presents a visual output to an individual i.e. athlete (102). A memory is coupled to a processor, and stores computer-readable instruction to cause the device to generate visual output for the display that includes indication of intensity level at which the individual is performing, and generates another visual output for the display that includes the indication of the intensity level at which the individual is currently performing.    USE - Portable fitness monitoring device e.g. mobile phone, personal digital assistant, MPEG-1 Audio Layer-3 (MP3) player, a GPS-enabled device, exercise equipment, dongle and dedicated portable fitness training device, for monitoring an individual i.e. athlete, during a physical activity i.e. running. Can also be used during walking, biking, skating, swimming, skiing, performing aerobic exercises and weight lifting.    ADVANTAGE - The device utilizes improved aesthetics and functionalities that enable the individual to exercise at intensities appropriate for the current fitness level and goals. The device allows a strength zone to be associated with heart rate range that allows the athlete to improve an aerobic threshold and endurance. The device has reduced size, weight, complexity and cost. The device allows a heart rate sensor to transmit a uniquely coded data signal that prevents the user's display module from receiving data from other heart rate sensors not associated with the user. The device allows a display module to be fabricated without power outlets/removable battery closure lids.    DETAILED DESCRIPTION - The article for wearing comprises a band or straps for coupling the device to the individual's wrist, and is secured on athlete's forearm, wrist, finger, head, chest, hip, or foot. The device utilizes a sensor (180) selected from a group consisting of a heart rate sensor (182), accelerometer and a global positioning system (GPS) receiver. An INDEPENDENT CLAIM is also included for a method for providing performance feedback to an individual using a portable fitness monitoring device.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of an athlete using a portable fitness monitoring system.    Portable fitness monitoring device (100)    Athlete (102)    Wearing article (110)    Capacitance touch screen display (140)    Sensor (180)    Heart rate sensor (182)    Chest strap (184)