Here is something new that we haven’t seen before, a concept phone which is completely transparent and see through.

This concept phone by BloodRabbit which he thought of while driving home from work.
This mobile phone comes in a see-through body and a basic LCD display, sharing the same dimensions as a credit card.

Although you’re probably scratching your head and wondering how the electronics and other stuff like a battery and camera fits in.
we have to go by the assumption that technology in the future will be able to compress electronics to such a size.