Gadgets that try and combine functionality with form or style usually end up forgotten about within a few months. However the new, stylish leather wallet from Nomad that also charges your iPhone, combines good looks and usefulness perfectly. Phone batteries show no signs of improving, and we're using our phones more and more on the go, so to have a portable charger with you at all times makes perfect sense.
The battery inside is a thin Panasonic 2400mAh lithium-ion. It uses an integrated Apple MFi certified Lightning cable to charge your phone. Definitely worth checking out if you're looking to get charged on the go.