swivel
swivel phone

It is the first swivel phone to have the Walkman features.

A swivel phone is composed of multiple (usually two) segments, which swivel past each other about a central axis.

The S710a is a swivel phone, and when music is playing with the phone in either the open or closed positions, the exposed keys and buttons can be locked.

Brick is a slang term often used to refer to large, outdated bar-type phones, although it can be applied to older flip, slider and swivel phones as well.

It had various advantageous features, including the swivel phone face which enabled the phone to become a digital camera in its own right, the claim made that the phone was both 100% phone, 100% camera.