Galaxy Z Fold 3 Passes Underwater Test, Validates Samsung's IP68 Claims

Water eventually evaporates. Dust gets stuck and grinds.
Why the Z Fold 3 can survive submersion but remains vulnerable to everyday particles.
Mark

Why does the hinge matter so much in a water-resistance test?

Mimi

Because it's the only part of the phone that has to move. Everything else can be sealed tight, but the hinge opens and closes thousands of times. Every gap, every joint is a potential entry point for water.

Mark

So if the hinge failed, what would happen?

Mimi

Water would get inside the phone and short out the battery, the circuits, the display. The phone would be dead. That's why this test was the real proof—not the drop test, but the submersion.

Mark

But Samsung doesn't cover water damage under warranty?

Mimi

Correct. They're saying the phone can handle it, but they're not betting their money on it. That's a signal to users: this is a capability, not a guarantee.

Mark

What about dust? Why is that worse than water?

Mimi

Water eventually evaporates or drains out. Dust gets stuck in the hinge mechanism and grinds against the moving parts. It's a slower kind of damage, but potentially more destructive over time.

Mark

So the Z Fold 3 is water-resistant but not dust-resistant?

Mimi

Exactly. It's a strange asymmetry, but it's the nature of the design. The hinge can be sealed well enough to keep water out for thirty minutes. But fine particles? Those find their way in no matter what.

  • A folding phone's greatest structural weakness — its mechanical hinge — made this underwater test far more consequential than a routine drop onto concrete.
  • Allstate submerged the Z Fold 3 five feet underwater for a full thirty minutes, raising the stakes beyond what most consumers would ever dare attempt.
  • When retrieved, the device powered on without fault, validating Samsung's IP68 water-resistance claim in real-world conditions rather than controlled lab settings.
  • Yet a quiet contradiction lingers: Samsung markets the phone as water-resistant but refuses to cover water damage under warranty, leaving users exposed despite the rating.
  • The device also carries no dust resistance, meaning the same hinge that survived submersion remains vulnerable to sand and particles encountered in everyday life.

In the ongoing human effort to reconcile engineering ambition with the unforgiving forces of nature, Samsung's Galaxy Z Fold 3 — a device that folds, bends, and hinges in ways phones were never meant to — was put to a quiet but consequential test: thirty minutes beneath five feet of water. The result, observed in September 2021, confirmed that the phone's IP68 rating is not merely a marketing claim but a genuine measure of resilience, even as the fine print reminds us that survival and protection are not always the same thing.

Samsung has long attached an IP68 water-resistance rating to the Galaxy Z Fold 3, but ratings printed on spec sheets mean little without real-world proof. Allstate set out to provide that proof — beginning with drop tests from six feet onto concrete, which the phone survived without visible damage. Foldables, built to flex and absorb impact, tend to handle drops reasonably well. The deeper concern was always the hinge.

The hinge is a mechanical joint that opens and closes thousands of times over a device's life, and every movement creates a potential entry point for moisture. It is the Z Fold 3's most exposed vulnerability. To test it, Allstate submerged the phone five feet underwater and left it there for thirty minutes. When it was pulled out, the device powered on and functioned perfectly — no water damage, no failed circuits. The IP68 rating had held.

But the story doesn't end with a clean bill of health. Samsung does not cover water damage under warranty, even for a phone it markets as water-resistant. And while the Z Fold 3 proved it can survive submersion, it offers no protection against dust — particles can infiltrate the hinge just as readily as water can. The honest conclusion is that this phone is water-tolerant, not waterproof: capable of surviving an accidental dunk, but not designed for careless or repeated exposure to moisture or grit.

Samsung has long claimed that its Galaxy Z Fold 3 can handle water. The company slaps an IP68 rating on the device and calls it water-resistant. But claims are one thing; what happens when you actually submerge a folding phone in a lake? Allstate decided to find out.

The test began with the basics. The Z Fold 3 was dropped face-down and face-up onto concrete from six feet high—twice. Both times, the phone survived without visible damage. Drop tests on foldables are rarely the real problem, though. These devices are built to flex and absorb impact. The real vulnerability lies elsewhere: inside the phone, where water can seep in and destroy the electronics.

The hinge is the weak point. It's a moving part, a mechanical joint that opens and closes thousands of times. Every time it moves, it creates a potential pathway for moisture. The glass and metal housing around it can only do so much to keep water out. This is where the Z Fold 3's design would either prove itself or fail spectacularly.

Allstate took the phone five feet underwater and left it there for thirty minutes. Half an hour submerged. When they pulled it out, the Z Fold 3 powered on and worked perfectly. No glitches, no water damage, no fried circuits. Samsung's IP68 rating held up. The phone had passed what mattered most—not a tumble onto pavement, but an actual aquatic trial.

There's an important caveat buried in the fine print, though. Samsung does not offer warranty coverage for water damage, even though the company markets the phone as water-resistant. The IP68 rating is real, the test proved it, but if your Z Fold 3 ends up in a pool or a river, Samsung won't fix it for free. The company also did not test the phone for dust resistance—because the Z Fold 3 simply isn't dust-resistant. Particles can work their way into the hinge just as easily as water can. So while the phone can survive a half-hour underwater, it's far more vulnerable to everyday dust and sand.

The takeaway is straightforward: the Z Fold 3 is genuinely water-resistant in the way Samsung claims. But that doesn't mean you should treat it like a waterproof device. It's more accurate to think of it as water-tolerant—able to survive an accidental dunk, but not designed for regular submersion or careless handling around moisture. Keep it away from prolonged water exposure, keep it away from dust, and if something does go wrong, don't expect Samsung to cover it under warranty.

Samsung does not offer warranty coverage for water damage, even though the company markets the phone as water-resistant.
— Allstate durability testing findings
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