Even the Latest and Greatest Foldable Phone Isn't Truly Dustproof
On paper, Samsung's Galaxy Z Fold 8 carries an IP48 rating, but iFixit's teardown says the foldable phone is vulnerable even to the fine debris that finds its way into your pocket.
An IP48 rating covers two types of protection. The "4" means the phone resists solid objects measuring at least 1mm wide. It does not certify protection against fine dust, sand, powder, or small lint fibers. The "8" shows water resistance tested in controlled conditions.
iFixit used fine UV-reactive powder and sand in its hinge test, then repeatedly folded and unfolded the Fold 8. The powder particles were about 0.04mm, while the sand particles were 0.16mm. After the test, the hinge made crunching and grinding noises, and the device did not open normally.
"If your $2,000 phone sounds like it's chewing gravel, that's generally frowned upon," iFixit's teardown reads.
Credit: iFixit
Technically, the test does not prove that all...
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