Abstract: A system that monitors user activity includes a wrist device including a curved body and an electronic circuitry supported by the body. The electronic circuitry includes a first set of light emitting diodes arranged in a matrix form and forming a display unit, at least one motion sensor configured to measure physical motion caused by a user to the wrist device, and at least one processor configured to acquire motion measurement data from the at least one motion sensor, to process the motion measurement data into a motion activity metric, and to cause the display unit to display the motion activity metric. The at least one processor is further configured to acquire heart activity measurement data from a heart activity sensor, to process the heart activity measurement data into a heart activity metric, and to cause the display unit to display the heart activity metric.

Abstract: A system that monitors user activity includes a wrist device including a curved body and an electronic circuitry supported by the body. The electronic circuitry includes a first set of light emitting diodes arranged in a matrix form and forming a display unit, at least one motion sensor configured to measure physical motion caused by a user to the wrist device, and at least one processor configured to acquire motion measurement data from the at least one motion sensor, to process the motion measurement data into a motion activity metric, and to cause the display unit to display the motion activity metric. The at least one processor is further configured to acquire heart activity measurement data from a heart activity sensor, to process the heart activity measurement data into a heart activity metric, and to cause the display unit to display the heart activity metric.

Abstract: A method and system for providing a feedback on a performance of a karaoke song is provided. Musical data elements of a music track input feed are compared with musical data elements of a performance input feed. Based on the comparison, the feedback on the performance of the karaoke song is generated on a display. Accordingly, lyrical data elements of a music track of the karaoke song and lyrical data elements of the performance are represented on the display. Moreover, differences between the performance and the music track are represented by altering the representation of the lyrical data elements of the performance relative to the representation of the lyrical data elements of the music track on the display.