Despite its advanced design and water resistance claims, iFixit’s analysis highlights a significant dust ingress vulnerability in Samsung’s latest foldable, raising questions about its durability against fine particles in everyday environments.
Samsung’s latest Galaxy Z Fold model may look tougher on paper than its predecessors, but iFixit’s teardown suggests the headline IP48 rating leaves a major gap where foldables are most exposed: the hinge. The repair site found that the device can cope with water resistance claims, yet still struggles with very fine debris that ordinary pockets can carry. That matters because the rating only covers solid particles larger than 1mm, not dust, sand or lint fine enough to work its way into the mechanism.
In iFixit’s test, the foldable was exposed to UV-reactive powder and sand, then repeatedly opened and closed. The particles used were far smaller than the threshold covered by the rating, and the phone began to make grinding noises before failing to open smoothly. iFixit also said the problem was not just theoretical: fabric-lined pockets, especially fleece or brushed materials, can shed and trap the kind of particles most likely to reach the hinge.
The finding is especially relevant because Samsung has spent heavily on durability elsewhere. According to Samsung’s product information and coverage from SamMobile, the Galaxy Z Fold 8 is the lightest Z Fold yet, at 201g, and pairs its new hinge with an Armor FlexHinge, a titanium-reinforced display structure and an Armour Aluminium frame. The phone also arrives with a 7.6-inch inner display, a 5.5-inch cover screen, a Snapdragon 8 Elite Gen 5 chip, a 4,800mAh battery, seven years of software support and a starting price of $1,899 in the US.
Even so, the dust issue remains a structural weakness of folding phones. Android Central notes that IP48 does not make the device waterproof, only water-resistant under controlled test conditions, and that resistance can decline with wear. TechRadar said the hinge is the critical point of failure in iFixit’s teardown, raising questions about whether Apple’s rumoured foldable could face the same engineering challenge if it adopts a similar design. For now, the practical message is straightforward: the Fold 8 may be one of the most polished foldables yet, but it is still not a phone for fine dust and pocket grit.
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