Abstract: A wearable electronic device comprising a housing. The device additionally includes a force sensor enclosed within an interior of the housing and positioned adjacent to or engaged with an interior surface of the housing. The device further includes a control button assembly engaged with the housing. A proximal end of the control button assembly comprises a contact head. A distal end of the control button assembly comprises a button head that is moveable with respect to the housing. The housing comprises a sidewall, and the sidewall entirely separates the control button assembly from the force sensor. The control button assembly further comprises a snap dome positioned between the contact head and the sidewall of the housing. The snap dome is configured to selectively generate an activation force sufficient to travel through the sidewall and that is detectable by the force sensor.

Abstract: A wrist-worn electronic device comprises a lower housing, an upper housing, an electrically non-conductive element, a first antenna and a location determining element. The lower housing includes a molded cover and an outer portion. The molded cover includes a first portion composed of an electrically conductive material, a second portion composed of an electrically non-conductive material and a surface having two electrical ground locations. The upper housing opposes the molded cover, includes a bezel formed of an electrically conductive material and has two electrical ground locations electrically coupled to the two electrical ground locations on the surface of the molded cover. The second portion of the molded cover substantially electrically shields the first antenna from the outer portion of the lower housing. The outer portion of the lower housing may be composed of a non-homogenous material, such as carbon fiber, or a homogenous material, such as titanium.