Do we really need our chair to inform everyone about how much we weigh? Fuwa PicaHoneyComb chairs play tattletale using computer sensors combined with soft inflatable cushions and LED lighting to glow assigned colours according to the user's respective weight. The seats also use built-in sensors that adjust colours of the chair to compliment the colours of a surrounding environment. So while my slightly out of shape behind glows an embarrassingly conspicuous glow of fried chicken gluttony fed guilt, the others chairs will nicely compliment the rest of the interior.
I thought technology was supposed to help us, not point at us and go "ha-ha!"? I'd rather much prefer they make a version for public transportation and trade conventions that notifies others of the different degrees of body odour. Now that would be rather useful.