A smart belt buckle that loosens when you've eaten too much may well end up being the most-loved gadget from CES 2015.
Belty is definitely not a gadget you need in your life. That said there are plenty of things we don't need but should definitely buy and Belty is one of them.
Designed by Paris-based startup Emiota, Belty is not what one would call a 'looker'. It's big, bulky and very much looks like something you'd find adoring the belt of a sci-fi action hero.