This year, Apple has gone all out and made some obvious changes to the structure of the iPhone 15, including grade 5 titanium and class-leading cameras. Anyone familiar with alloys knows that grade 5 titanium is not cheap. In fact, it's the pricier form of titanium, so it's a bold move for Apple to use grade 5 titanium.

access:

Apple Online Store (China)

In order to test the specific performance of this new material, digital video blogger Zack from JerryRigEverything decided to use the new iPhone 15 Pro Max to test its strength, but he had quite a few questions.

The entire video went very normally, and the iPhone 15 Pro Max passed all the tests, but when it came to the bending test, the phone didn't survive at all. This is likely because Apple used titanium for the outer frame and aluminum for the inner frame. Grade 5 titanium has nearly three times the tensile strength and half the elasticity of aluminum. While this isn't as severe as other bend tests we've seen, it's still a good idea to be careful if you're spending over $1,000 on a new iPhone.

During the test, Zack polished the edges of the iPhone 15 Pro Max and found that Apple did use titanium because titanium changes color when heated. We can’t say for sure if this is grade 5 titanium yet, though, since as mentioned, this is one of the most expensive titanium grades. Hopefully we’ll find out more in the teardown video that will be released later. Surprisingly, the standard iPhone 15 Pro, which does not use titanium, did not show any cracks in the bend test, which leaves us with more questions.

We've been hearing that the iPhone 15 Pro series appears to be defective, at least with the first batch, with reports that the PVD coating isn't evenly applied to the bezels, the glass and bezels are misaligned, and more. Until Apple responds or improves its workmanship, new users are strongly recommended to buy a protective case to protect their valuable iPhone 15 Pro Max.