Foldable phones are expensive and inherently delicate due to their hinge design and lower dust-resistance ratings compared to traditional smartphones, making protective cases essential. Manufacturers face the challenge of creating cases that offer adequate protection without compromising performance or aesthetics, though options are improving.

Foldable cases typically consist of two parts: one covering the back, sides and camera island, and another protecting the front screen perimeter. Different brands take varied approaches—Samsung's Carbon Standing Case emphasises convenience with an anti-reflective film and kickstand; Casetify prioritises durability with energy-dispersing technology and hinge protection; whilst more rugged options from CaseBorne, Supcase and Otterbox offer comprehensive coverage including screen protectors, though they add significant bulk. The primary vulnerability remains dust accumulation, particularly within the hinge mechanism. Newer devices like the iPhone Duo and Pixel 11 Pro Fold feature robust IP68 ratings, whilst the Galaxy Z Fold 8 has a weaker IP48 rating—meaning fine dust particles can damage the screen or hinge. Notably, no foldable phone case currently prevents dust from becoming trapped in the folded screen or hinge, so owners should supplement case protection by wiping their phones before closing them.