Seven years of Galaxy Z Fold and Flip experiments led to Samsung’s wildest form factor yet, a phone that folds twice into a 10‑inch tablet. Before anyone can trust a device like that, it has to survive more than a marketing reel. JerryRigEverything’s durability test became the unofficial reality check for the Galaxy Z Trifold, showing how far Samsung pushed the engineering and where those limits start to bite back.
Zack Nelson’s standard protocol is scratch, burn, dust, and bend, and the Galaxy Z Trifold greets you with a wall of warnings about not peeling films and folding in a specific order. If you close the wrong flap first, the phone vibrates and flashes red, a sign that the folding choreography is tightly constrained, even if it does not break immediately. The device is smart enough to know when you are stressing it incorrectly.
Designer: Samsung (via Zack Nelson/JerryRigEverything)
The outer cover screen behaves like other flagships, scratching at Mohs level 6 with deeper grooves at 7, while the inner flexible display still marks at level 2 with deeper damage at 3. The burn test shows the outer OLED lasting around 17 seconds under flame and the inner panel about 10, reinforcing that ultra‑thin glass and plastic stacks remain fragile, even in this latest generation, which is less a Samsung problem and more a physics problem.
The phone carries an IP48 rating, which sounds reassuring until fine dust is sprinkled into the hinge area and folding begins. The immediate grinding noises make it clear that particles can still get into the mechanism and between layers. The device survives the moment, but the test underlines that a tri‑fold with exposed hinge gaps is best kept away from beaches, workshops, or pockets full of grit.
The defining moment is the bend test. When force is applied in the opposite direction to the intended fold, the Galaxy Z Trifold’s frame buckles with an audible crack, making it the first Samsung phone to fail this particular test. The central spine is around 3.9 mm at its thinnest, significantly slimmer than many ultra‑thin phones, and the hinges themselves hold while the aluminium frame gives way, showing that Samsung prioritised compactness over reverse‑bend resistance.
The teardown reveals three separate batteries spread across the three segments, totalling about 5,600 mAh, so thin that even using pull tabs to remove them risks bending and puncturing. A 200 MP main camera, a 10 MP telephoto with OIS, and reliance on the aluminium frame for heat dissipation rather than a complex cooling system all point to thinness and packaging as top priorities, which makes sense when the goal is pocketability.
The Galaxy Z Trifold is an engineering statement that proves a pocketable tri‑fold tablet is possible, and JerryRigEverything’s test shows the trade‑offs of that ambition. Inner screens remain soft, dust remains a threat, and a 3.9 mm spine will not forgive a wrong bend. As a first draft of a radically new category, it achieves something impressive while accepting vulnerabilities that future iterations will likely address with slightly thicker frames and better sealing, once the core mechanics are proven and refinement can begin.
The post Galaxy Z Trifold Durability Test Reveals 3.9mm Trade-Offs first appeared on Yanko Design.

