What do foldable phone cases actually protect?

Foldable phones inherently have more weak points than bar phones, and the hinge mechanisms are susceptible to dust. Getting the right case matters.

Foldable phones inherently have more weak points than bar phones, and the hinge mechanisms are susceptible to dust. Getting the right case matters.<p><img src="https://www.engadget.com/img/gallery/what-do-foldable-phone-cases-actually-protect/intro-1790269125.jpg" /></p>