Just a few grains of sand are enough to cripple the Galaxy Z Fold 8. This is shown by a recent teardown by iFixit: Despite IP48 certification, fine dust clogged the hinge so severely that, according to the repair experts, Samsung’s latest foldable flagship “could practically no longer be closed.” For a device that costs around 1,945 euros, this is an unpleasant revelation so soon after its market launch.
In a nutshell:
- iFixit tested the Galaxy Z Fold 8 with UV powder and sand and gave it a preliminary repair score of 4 out of 10.
- After repeatedly opening and closing it, the hinge began to creak until the phone could no longer be opened normally.
- The IP48 certification only protects against foreign objects with a diameter of 1 mm or larger. Finer sand and dust are not covered.
- The display and back panel are firmly bonded together, but at least the battery can be removed without solvents.
The Sand Test: How iFixit Brought the Hinge to a Standstill
For the test, iFixit didn’t use ordinary sand, but rather UV-reactive powder with a grain size of about 0.04 millimeters, along with beach sand with a particle size of around 0.16 millimeters. Both are well below the 1-millimeter threshold covered by IP4X. After the device was exposed to the particles, the hinge could only be moved with considerable resistance. It began to creak and grind until, according to iFixit, the Z Fold 8 could no longer open and close normally.
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The result isn’t entirely surprising: iFixit itself points out that foldable hinges generally struggle with fine particles smaller than one millimeter—exactly the kind found in ordinary dirt and sand.
IP48: What the Certification Really Covers
The IP48 rating sounds like solid protection, but it covers less than many buyers assume. The two digits stand for different levels of protection:
| Designation | Protection Level | What It Actually Means |
|---|---|---|
| 8 | Water protection | Protected against continuous submersion in fresh water (manufacturer’s specification; exact depth and duration may vary) |
| 4 | Dust protection | Protection only against solid foreign objects with a diameter of 1 mm or larger; no protection against fine dust or sand |
Unlike with true dust resistance (IP6X), the Galaxy Z Fold 8 still has a vulnerability exactly where it matters most for a folding hinge: fine sand at the beach, crumbs in your pocket, or everyday dust.
Repairability Rating 4/10: Display, Battery, and Adhesive in Detail
In addition to the hinge test, iFixit also completely disassembled the Galaxy Z Fold 8 and awarded it a preliminary repairability score of 4 out of 10. The battery stands out positively: Two thin silicon-carbon lithium-ion cells with a combined capacity of 18.68 watt-hours can be removed without solvents, which is an improvement over older models. Samsung has increased the capacity by about 8.8 percent compared to the Z Fold 7.
The situation is less promising when it comes to the display. The new “Flex Titanium” structure uses a titanium alloy that, according to Samsung, is 20 times stiffer than the previous polymer film, but it bonds both the outer display and the plastic bezel of the inner screen extremely tightly. During disassembly, the brittle bezel shattered, and the inner display did not survive the process. While the USB-C port and cameras can be replaced relatively easily, replacing the hinge itself is practically impossible for end users.
Context: Not a New Problem for Foldables
Hinge issues are nothing new for Samsung’s foldable series. Even with the Galaxy Z Flip 7, users had very different experiences depending on the unit—ranging from creaking noises after just a few days to months of trouble-free operation. What’s new with the Z Fold 8 is primarily how quickly and consistently iFixit was able to reproduce the problem in the lab—despite an IP rating that’s supposed to reassure buyers.
By comparison: For a standard repair, such as replacing components on an iPhone, many steps are now well documented and covered by replacement parts. With a defective Fold hinge, however, users usually have no choice but to go through Samsung Support; according to iFixit, the device is not designed for DIY repair.
Conclusion: What Buyers Should Know
The iFixit teardown shows one thing above all: IP48 is not a free pass for the beach or a construction site. Anyone buying a Galaxy Z Fold 8 should continue to protect the device from fine sand and dust, even if the spec sheet suggests a certain level of protection. Repairs beyond the battery, USB-C port, or camera are also reserved for Samsung’s own service. Samsung itself has not yet commented on the test results.
The Galaxy Z Fold 8 is currently available on Amazon, among other places.
Sources: iFixit,
