Drop tests have become fairly uneventful, mostly resulting in some shattered glass – makers have figured out how to make a rigid metal frame sandwiched between two panes of glass. But how will a foldable phone like the Samsung Galaxy Z Fold3 5G fare? The frame on the Fold is made out of Samsung’s proprietary Armor Aluminum material, which should be 10% stronger than the 7000 series aluminum typically used on phones. The external sides are covered with the Gorilla Glass Victus. While it is closed, the Z Fold3 handles drops a lot like a regular phone thanks to its metal and glass...
Source: https://www.gsmarena.com/samsung_galaxy_z_fold3_goes_through_drop_tests_both_open_and_closed-news-51031.php