Wrist carried electronic device

A portable electronic device adapted to be worn on a user's wrist, the portable electronic device comprising:

• a first electronic circuit;
• a first housing containing the first electronic circuit and having a pair of positive and negative contacts which are electrically coupled to the first electronic circuit;
• a second electronic circuit;
• a second housing containing the second electronic circuit and having a first pair of positive and negative contacts and a second pair of positive and negative contacts, the first pair of positive and negative contacts being electrically coupled to the second pair of positive and negative contacts, respectively, and to the second electronic circuit;
• a compliant energy storage device formed of a substantially flat, elongated, flexible battery cell;
• a single, continuous wrist band containing the compliant energy storage device substantially throughout the wrist band, the wrist band having a pair of positive and negative terminals being electrically coupled to the compliant energy storage device, the wrist band having a first end disposed essentially opposite a second end;
• a first latch mechanism for releasably securing the second housing to the wrist band between the first end and the second end of the wrist band and permitting the first pair of positive and negative contacts of the second housing to align with and abut the pair of positive and negative terminals of the wrist band while the wrist band is worn on the user's wrist;
• and
• a second latch mechanism for releasably securing the first housing to the second housing and permitting the pair of positive and negative contacts of the first housing to align with and abut the second pair of positive and negative terminals of the second housing.