Return of the flip phone: does Apple’s foldable iPhone signal a new era in design?

Experts say Apple's foray into flip phones is sign that consumers want devices that optimise internet use

Back in 2005, nothing felt more high-powered and sophisticated than ending a call by snapping shut a clamshell flip phone.

Now, two decades since they hit peak popularity, they're back - with Apple rumoured to be working on its first ever flip phone.