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iPhone Duo drop test: AppleTrack drops it against the iPhone 18 Pro Max

AppleTrack drop-tested the iPhone Duo against the iPhone 18 Pro Max, from waist height to extreme drops. What cracked, what survived, and what it means for using a case.

What happens when you drop the iPhone Duo? AppleTrack's Sam Kohl ran an iPhone Duo drop test against the iPhone 18 Pro Max to find out, starting at waist height and working up to drops from several stories, on concrete, in Sydney, Australia. The short answer on how durable the iPhone Duo is: in his test, the Duo's glass back and outer screen cracked far sooner than the 18 Pro Max's, while its titanium frame resisted scuffs and its inner folding display held up for a surprisingly long time. As AppleTrack's video description puts it, the Duo was "more and less durable than I expected at the same time." iPhone Duo Hub has not tested or dropped the phone; every result below is AppleTrack's. For how full reviews judged the phone overall, see our iPhone Duo reviews roundup.

Watch the video: AppleTrack, "iPhone Duo Drop Test! Not What I Expected..." (https://www.youtube.com/watch?v=b9f7ZOnE8ig)

Key takeaways

  • The Duo's back glass and rear camera lens cracked on the first waist-height back drop, and its outer screen cracked on the next drop.
  • The 18 Pro Max's aluminum frame scuffed badly from the first drop, but its glass survived far longer.
  • The Duo's inner folding display stayed usable through every waist and shoulder drop, failing only on an above-head drop.
  • At the extreme heights, the Duo's outer display outlasted the 18 Pro Max, which broke front and back at about 20 feet.
  • Kohl's verdict: a $2,000 phone that "does not hold up like one if you drop it."

Does the iPhone Duo screen crack? The waist-height drops

Kohl tested both phones closed and open where the Duo allowed, so the 18 Pro Max took roughly twice as many drops per surface to match the Duo's two orientations.

  • Side drop, closed. The Duo "held up incredibly well": screen flawless, inner display fine, and the titanium frame resisting small scuffs. The 18 Pro Max's aluminum was, in his words, "a disaster after just one slip and fall."
  • Side drop, open. A small mark appeared at the top of the Duo's display, and a nick on the titanium side, which Kohl says looks far less bad than it would on aluminum. The 18 Pro Max "looks so bad after two drops."
  • Back drop, closed. The Duo's back glass shattered in a corner, and its rear camera lens cracked, even though the lenses are sapphire. The inner display was fine and the front screen still worked. The 18 Pro Max kept scuffing, but its back glass was in near-perfect condition.
  • Back drop, open. The Duo's front screen broke on impact, though the phone still turned on, and the inner display held up. The 18 Pro Max's screen was "completely flawless."
  • Screen drop, closed. The Duo's front display started spidering across the rest of the screen. The 18 Pro Max's display was undamaged, "literally a new phone from a usability perspective."
  • Inner display face down, open. The Duo's rear cameras were "absolutely toasted," but the inner display was "totally fine." The 18 Pro Max's display was still flawless.

How durable is the iPhone Duo? The shoulder-height drops

  • Side drop, closed. The Duo opened up on impact for the first time and its cracks spread, while the inner display stayed flawless. The 18 Pro Max's screen still would not break.
  • Side drop, open. The Duo's glass back took more damage; Kohl says it is "not built for drops like this on concrete." The 18 Pro Max's back glass still had not shattered.
  • Back drop, closed. The Duo's screen and inner display still worked, but Kohl warns you would not want to look at the back. The 18 Pro Max's back glass was, he says, "unmatched."
  • Back drop, open. The Duo's inner display was again flawless, but its back glass began delaminating, exposing some internals. Kohl says that at this point it would not be a phone you keep, while the 18 Pro Max's screen was still "just like day one."
  • Screen drop, closed. The Duo landed open in a tent position and was, Kohl says, not doing all that great, though its inner display was fine. The 18 Pro Max finally took front damage, with a visible impact point in its Ceramic Shield 2 glass.
  • Inner display face down, open. The Duo's inner screen stayed "like 100% usable." Kohl points to a slightly raised lip around the inner display, which he believes keeps debris from hitting the screen directly. By now, he says, the Duo's back looked like it had been "in some kind of a war zone," while the 18 Pro Max looked dropped once or twice.

Above head: the inner display finally fails

  • Side drop, open, which the wind turned into a screen drop. This was the drop that broke the Duo's inner display. It shut off with an impact crack, developed air bubbles where it had delaminated, became completely unresponsive, and showed what Kohl calls a second crease forming. The outer display still worked, so the Duo was down to one working screen. The 18 Pro Max's back was still unbroken, though its display was increasingly shattered and harder to use.
  • Back drop. The Duo's back deteriorated further. The 18 Pro Max's front cracks got worse, but its back stayed intact, and both phones still worked.

Is the iPhone Duo more durable than the iPhone 18 Pro Max? The extreme drops

  • Side drop from about 10 to 12 feet. The Duo's inner screen was "not looking great," but its outer display still worked. The 18 Pro Max lost its digitizer, so, in Kohl's words, the Duo's front display "outlasted the 18 Pro Max." The 18 Pro Max's back glass was still perfect.
  • Back drop from about 20 feet. The Duo's inner display showed no further change and its front display was still good. The 18 Pro Max's back glass finally broke, its display was done too, and Kohl declared it fully broken.
  • Duo only, about five stories. The Duo's outer screen turned on and partly worked, with the top section and part of the bottom still responding.
  • Final drop, inner display face down, many stories. The inner display took multiple direct impacts, but the outer display was still not fully broken. "At the highest point, we could not fully get the iPhone Duo screen to break," Kohl says.

What the results do and do not prove

This is one test of one iPhone Duo and one iPhone 18 Pro Max, dropped onto one surface, concrete, by one person, with no repeats. It shows how these two units behaved in this sequence of drops, not how every Duo will fare. Drop angle matters too: one of the Duo's key failures came when the wind turned a side drop into a screen drop. Kohl's own explanation of the pattern is that the Duo, being mostly glass, started breaking early, while the 18 Pro Max's glass held but its aluminum scuffed and scratched fast, which he calls unacceptable for a phone that costs over a grand. For what Apple says about the Duo's build and water resistance, see our iPhone Duo durability guide.

What it means for iPhone Duo owners

Kohl's summary is blunt: he "expected a little bit better," and while titanium and glass make the Duo feel like a $2,000 product, "it does not hold up like one if you drop it." His advice is to be a little gentle with it, since it is a folding phone with more moving parts. On this test, a case that protects the glass back and the camera area looks worthwhile, since those went first. AppleCare+ is the other safety net: our AppleCare+ guide covers Apple's listed repair fees for the Duo with and without coverage, and the full specs page lists what Apple confirms about the hardware.

Frequently asked questions

Does the iPhone Duo screen crack when you drop it?

In AppleTrack's drop test, the iPhone Duo's outer screen cracked early, on a waist-height back drop with the phone open, and spidered further on a waist-height screen drop. The inner folding display stayed usable through many drops until an above-head drop knocked it out. The outer screen still partly worked after a five-story drop.

How durable is the iPhone Duo?

Mixed, in AppleTrack's test. The iPhone Duo's back glass and rear camera lens cracked on the first waist-height back drop, and Sam Kohl says the phone was essentially toasted well before the extreme drops. Its titanium frame resisted scuffs, and its inner display held up for a long time. His advice: be a little gentle with it.

Is the iPhone Duo tougher than the iPhone 18 Pro Max?

AppleTrack's test gives a split answer. The iPhone 18 Pro Max's aluminum frame scuffed badly from the first drop, but its glass held up far longer than the iPhone Duo's. At the extreme heights, though, the Duo's outer display outlasted the 18 Pro Max, which finally broke front and back on a drop of about 20 feet.

What breaks first on the iPhone Duo?

In AppleTrack's drop test, the back glass went first: it shattered in a corner on the first waist-height back drop, and the rear camera lens cracked on the same drop. The outer screen cracked on the next drop, a waist-height back drop with the phone open.

Sources