A mobile electronic device 10 with an enhanced chassis is disclosed. The device 10 can include: a frame 12 including an upper portion 14 and a lower portion 16 defining a narrow profile height 18 having an open top 20 and an open bottom 22; the frame 12 includes an interior portion 24 configured to surround components in a predetermined arrangement and an exterior portion 26; the exterior portion 26 of the frame 12 being connected to a printed circuit board (PCB) 28; and the open top 20 being configured to receive components on the printed circuit board 28 and the open bottom 22 being configured to receive a battery 32. Advantageously, the frame 12 height 13 provides a narrow profile structural system to securely support and connect components in connection with mobile electronic devices. Beneficially, the height is structurally passive and free from contributing to the Z dimension.