Abstract: A wearable electronic device, comprising a heart rate sensor to determine a heart rate of the user, a motion sensor to detect motion of a user, the motion sensor operated in an initial calibration phase during which the heart rate sensor is detecting the heart rate of the user, and the motion sensor is detecting the motion of the user, the calibration phase being used to compute a correspondence between motion of the user and the heart rate of the user, the motion sensor being operated in a low power phase during which the heart rate sensor is powered down, and a processor configured to run a heart rate estimation module configured to calculate an estimated heart rate of the user based upon the motion of the user and the correspondence between the heart rate of the user and the motion of the user determined in the calibration phase.

Abstract: A physical activity monitoring device includes a sensor array with one or more sensors configured to measure physical activity attributes of a user. A controller automatically determines time intervals where the user is actively engaged in a physical activity based on the physical activity attributes. The controller also automatically determines a type of physical activity the user in actively engaged in during the determined time intervals based on the physical activity attributes. A reporter outputs information regarding the type of physical activity to the user.

Abstract: A wearable electronic device, comprising a heart rate sensor to determine a heart rate of the user, a motion sensor to detect motion of a user, the motion sensor operated in an initial calibration phase during which the heart rate sensor is detecting the heart rate of the user, and the motion sensor is detecting the motion of the user, the calibration phase being used to compute a correspondence between motion of the user and the heart rate of the user, the motion sensor being operated in a low power phase during which the heart rate sensor is powered down, and a processor configured to run a heart rate estimation module configured to calculate an estimated heart rate of the user based upon the motion of the user and the correspondence between the heart rate of the user and the motion of the user determined in the calibration phase.

Abstract: A physical activity monitoring device includes a sensor array with one or more sensors configured to measure physical activity attributes of a user. A controller automatically determines time intervals where the user is actively engaged in a physical activity based on the physical activity attributes. The controller also automatically determines a type of physical activity the user in actively engaged in during the determined time intervals based on the physical activity attributes. A reporter outputs information regarding the type of physical activity to the user.

Abstract: A physical activity monitoring device receives a workout regimen including a plurality of exercises. For each of the plurality of exercises, the physical activity monitoring device indicates that exercise to a user and measures physical activity attributes of the user. The physical activity monitoring device outputs information regarding the user's progress towards completion of that exercise based on the physical activity attributes.

Abstract: A physical activity monitoring device receives an indication of one or more physical activities to be performed as an extension of a game being played on a game system and measures physical activity attributes of a user wearing the physical activity monitoring device. The physical activity monitoring device determines the user's progress towards completion of the one or more physical activities based on the physical activity attributes and outputs to the game device an indication of the user's progress towards completion of the one or more physical activities.

Abstract: A physical activity monitoring device receives an indication of one or more physical activities to be performed as an extension of a game being played on a game system and measures physical activity attributes of a user wearing the physical activity monitoring device. The physical activity monitoring device determines the user's progress towards completion of the one or more physical activities based on the physical activity attributes and outputs to the game device an indication of the user's progress towards completion of the one or more physical activities.

Abstract: A physical activity monitoring device receives a workout regimen including a plurality of exercises. For each of the plurality of exercises, the physical activity monitoring device indicates that exercise to a user and measures physical activity attributes of the user. The physical activity monitoring device outputs information regarding the user's progress towards completion of that exercise based on the physical activity attributes.

Abstract: A physical activity monitoring device includes a sensor array with one or more sensors configured to measure physical activity attributes of a user. A controller automatically determines time intervals where the user is actively engaged in a physical activity based on the physical activity attributes. The controller also automatically determines a type of physical activity the user in actively engaged in during the determined time intervals based on the physical activity attributes. A reporter outputs information regarding the type of physical activity to the user.