Abstract: One or more electronic device may use motion and/or activity sensors to estimate a user's 6 minute walking distance. In particular, because users typically walk at less than their maximum output and in imperfect conditions, control circuitry within the device(s) may rely on walks of shorter distances to estimate the 6 minute walking distance. For example, the control circuitry may gather activity information for the user, such as heart rate, calories burned, and step count, and analyze a distance component and a speed component for periods in which the user has walked. Individual 6 minute walk distance estimates may be generated based on each of the activity information, distance component, and speed component. The distance and speed estimates may be corrected for walking behaviors that deviate from an ideal testing environment, and may then be fused with the activity estimate to generate a final 6 minute walk distance estimate.

Abstract: A hat for a head of a person. The hat can include an illumination system configured to illuminate a hollow interior of the hat. The hat includes light-transmissible material configured to permit light from the light source to pass from the hollow interior to an exterior of the hat to be visible from the exterior of the hat body. A noise maker party hat can include a mouth piece and a sound wave guide.

Abstract: A hat for a head of a person. The hat can include an illumination system configured to illuminate a hollow interior of the hat. The hat includes light-transmissible material configured to permit light from the light source to pass from the hollow interior to an exterior of the hat to be visible from the exterior of the hat body. A noise maker party hat can include a mouth piece and a sound wave guide.