Liquidmetal Technologies Inc (LQMT)

[JoTu]

yes bluetooth 'tags' are not new but for some reason apple decided to make this tile with a metal back instead of the usual plastic front/back.

so why did apple make the back out of metal for a tile thats the size of a bottle cap and will spend most of its time unseen in a pouch?

why complicated the design/manufacturing/cost?

the metal back must be there for a reason.

my thoughts are that the tile is rechargeable and if it was all plastic the charge coils would melt/discolor the plastic when charged via induction.

as such the metal would need to be rf transparent for induction/uwb u1 chip to function.