Embodiments are generally directed to an adjustable gap structure for mobile devices. An embodiment of a mobile device includes a cover; a printed circuit board including a processing component and thermal solution, the printed circuit board being movable along a first axis towards or away from the cover to provide an adjustable air gap; one or more ferromagnetic elements coupled with the printed circuit board; and one or more magnets, wherein, in first mode, the one or more magnets are to attract the one or more ferromagnetic elements and maintain an air gap of a first distance between the thermal solution and the cover, and wherein, in a second mode, an external magnetic force is to pull the ferromagnetic elements away from the one or more magnets and reduce the air gap between the thermal solution and the cover.