An anonymous reader quotes a report from Ars Technica: YouTuber JerryRigEverything regularly does destructive durability tests on phones, partly by attacking a device with a set of Mohs picks. These pointy metal tools that are calibrated to the Mohs scale of mineral hardness allow a user to determine the hardness of a surface by doing a scratch test. You start with the softest pick and work your way up the set until you find something that can scratch the surface you're testing. A modern smartphone with Corning's Gorilla Glass scratches at level 6 on the Mohs hardness scale. The Galaxy Z Flip features a first-of-its-kind flexible glass cover that Samsung calls "Ultra-Thin Glass." Until now, foldables have had to suffer through life with plastic display covers, which scratch easily, don't provide much protection, and just like a resistive touchscreen, feel bad to swipe around on, thanks to the squishy pliability of the display. With this new invention of flexible glass, the Z Flip promised a return to a hard, smooth, scratch-resistant display surface. So how did the Z Flip fare against JerryRigEverything's Mohs picks? It scratches at level 2, the same level as the plastic-covered Galaxy Fold and Moto Razr. You can actually leave marks on the surface with a fingernail! This is not what Samsung was promising. Samsung sent The Verge a response to the video, reiterating that the display is actually "glass." "Galaxy Z Flip features an Infinity Flex Display with Samsung's Ultra Thin Glass (UTG) to deliver a sleek, premium look and offer an immersive viewing experience," Samsung told the site. "Samsung's first-of-its-kind UTG technology is different from other Galaxy flagship devices. While the display does bend, it should be handled with care. Also, Galaxy Z Flip has a protective layer on top of the UTG similar to Galaxy Fold." In Samsung's official Z Flip videos, the company shows a plastic "protective layer" going on top of the glass display. But as Ars Technica notes, this layer is not removable and JerryRigEverything's video shows that the underlying "glass" layer doesn't provide protection from punctures, either. With that said, "One Twitter user cracked their Galaxy Z Flip on the first fold, possibly due to cold weather," reports Ars. "So we know it can shatter, at least."

Read more of this story at Slashdot.

情報元へのリンク