It might seem obvious, but try not to sit on your iPhone Duo when you leave it open.

That lesson comes a day after Apple’s foldable iPhone hit stores with lines of people queued up to buy the new device. Tech reviewer Zach Nelson dropped an iPhone Duo video on his YouTube channel, JerryRigEverything , testing the scratch resistance and bendability of the new $2,000 phone.

Let’s just say that Nelson’s measured, soothing voice didn’t keep me calm as he meticulously destroyed the Duo.

He subjected it to numerous scratch tests on both its cover and inner screens. Nelson praised Apple for the cover screen’s Ceramic Shield 2 glass and noted that the inner screen, even with its nano-texture finish, scratches as easily as the Galaxy Z Fold 8’s nonmatte folding display.

But why stop there?

Nelson used medieval chainmail (no proof it was actually from the Middle Ages), dirt, dust and pebbles to test the Duo further. Surprisingly, the new phone handled the chainmail easily.…