Abstract: A portable electronic device may include a display, a front cover, a housing coupled to the front cover and defining a first portion of a rear exterior surface, and a protrusion defining a raised sensor array region, the raised sensor array region defining a second portion of the rear exterior surface, a first hole defined through the protrusion in the raised sensor array region, and a second hole defined through the protrusion in the raised sensor array region. The portable electronic device may further include a camera lens assembly aligned with the first hole and defining a first principal axis perpendicular to the second portion of the rear exterior surface, and a depth sensor module including a depth sensor lens assembly, the depth sensor lens assembly aligned with the second hole and defining a second principal axis oblique to the second portion of the rear exterior surface.