Handheld electronic device

A supplemental housing component for a mobile phone, comprising:

• a rear wall configured to replace a removable rear cover assembly of the mobile phone, thereby defining a rear exterior surface of the mobile phone in place of the removable rear cover assembly of the mobile phone;
• a protective side wall extending from the rear wall and configured to cover at least a portion of a peripheral wall of a housing of the mobile phone, thereby defining a side exterior surface of the mobile phone;
• an attachment feature coupled to the rear wall and configured to attach to a corresponding attachment feature coupled to an interior side of the housing of the mobile phone;
• and
• an electrical connector configured to couple to a corresponding electrical connector within the housing of the mobile phone to electrically couple an electrical system of the supplemental housing component to the mobile phone.

A mobile phone comprising:

• a housing structure operable in:
• a first assembly configuration in which a removable rear cover assembly is coupled to the housing structure to define a rear exterior surface of the mobile phone in the first assembly configuration, the housing structure defining a side exterior surface of the mobile phone in the first assembly configuration;
• and
• a second assembly configuration in which a supplemental housing component is coupled to the housing structure to define the rear exterior surface of the mobile phone in the second assembly configuration;
• a first attachment feature coupled to the housing structure;
• a circuit board assembly at least partially within the housing structure;
• and
• a front cover assembly coupled to the housing structure, wherein:
• the removable rear cover assembly comprises:
• a rear cover formed of glass;
• a second attachment feature coupled to the first attachment feature in the first assembly configuration, thereby releasably coupling the removable rear cover assembly to the housing structure;
• and
• a first electrical connector conductively coupling the removable rear cover assembly to the circuit board assembly in the first assembly configuration;
• and
• the supplemental housing component comprises:
• a rear wall configured to define the rear exterior surface of the mobile phone in the second assembly configuration;
• a side wall extending from the rear wall and configured to cover at least a portion of a peripheral wall of the mobile phone in the second assembly configuration;
• a third attachment feature configured to be coupled to the first attachment feature in the second assembly configuration;
• and
• a second electrical connector configured to conductively couple an electrical system of the supplemental housing component to the circuit board assembly in the second assembly configuration.

A mobile phone comprising:

• a housing structure operable in:
• a first assembly configuration in which a removable rear cover assembly is coupled to the housing structure to define a rear exterior surface of the mobile phone in the first assembly configuration, the housing structure defining a side exterior surface of the mobile phone in the first assembly configuration;
• and
• a second assembly configuration in which a supplemental housing component is coupled to the housing structure to define the rear exterior surface of the mobile phone and the side exterior surface of the mobile phone in the second assembly configuration;
• a front cover formed of glass and coupled to the housing structure and defining at least a portion of a front exterior surface of the mobile phone in the first assembly configuration and the second assembly configuration;
• a display below the front cover;
• an attachment feature coupled to the housing structure and configured to:
• in the first assembly configuration, engage with a first corresponding attachment feature of the removable rear cover assembly to mechanically couple the removable rear cover assembly to the housing structure and conductively couple the removable rear cover assembly to an electrical ground of the mobile phone;
• and
• in the second assembly configuration, engage with a second corresponding attachment feature of the supplemental housing component to mechanically couple the supplemental housing component to the housing structure and conductively couple the supplemental housing component to the electrical ground of the mobile phone;
• a rear-facing camera comprising a lens configured to, in the first assembly configuration, extend into a first camera recess of the removable rear cover assembly, and in the second assembly configuration, extend into a second camera recess of the supplemental housing component;
• and
• a circuit board assembly at least partially within the housing structure and comprising an electrical connector configured to:
• in the first assembly configuration, engage with a first corresponding electrical connector of the removable rear cover assembly to conductively couple the removable rear cover assembly to a circuit board;
• and
• in the second assembly configuration, engage with a second corresponding electrical connector of the supplemental housing component to conductively couple the supplemental housing component to the circuit board.