Handheld electronic device

A portable electronic device comprising:

• an enclosure comprising:
• a light transmissive cover defining a front exterior surface of the portable electronic device;
• a housing structure defining:
• a protrusion having a metal surface, the metal surface defining a first portion of a rear exterior surface of the enclosure;
• and
• a bezel portion extending at least partially around an opening;
• a rear cover defining a silicate-based material surface, the silicate-based material surface positioned in the opening and defining a second portion of the rear exterior surface of the enclosure;
• a display coupled to the light transmissive cover;
• and
• a camera array coupled to the housing structure and comprising a camera module extending at least partially into a hole formed through the metal surface of the protrusion.

A mobile phone comprising:

• a housing structure defining:
• a protrusion formed of metal and defining a first portion of a rear exterior surface of the mobile phone;
• and
• a recess positioned along a side of the protrusion;
• a silicate-based material panel positioned in the recess and defining a second portion of the rear exterior surface of the mobile phone;
• a rear-facing sensor array comprising a camera module positioned in a hole formed through the protrusion;
• and
• a front cover assembly coupled to the housing structure and comprising a display and a light transmissive cover over the display and defining a front exterior surface of the mobile phone.