Samsung Galaxy Z Fold 4 durability just tested — here’s how tough this foldable is

in fact, the Fold 4’s fingerprint reader, located on the side of the device, was easily the highlight of the testing. Despite being heavily scratched and then covered with dust, the fingerprint reader still allowed JerryRigEverything to register and use a fingerprint quickly. Given that in-screen fingerprint readers do not always perform ideally, this test is a major point in favor of keeping the fingerprint reader a physical button.

Fold 4 vs Fold 3: Not a leap forward for durability

As impressive as those findings were, the Galaxy Z Fold 4 does not appear to be any more durable than the Galaxy Z Fold 3, at least based on this new video. Despite claims from Samsung that the main screen is 45% more durable in the Fold 4 than the Fold 3, the testing did not really bear that out.

The Ultra Thin Glass (UTG) of the interior screen still suffers from scratches at level 2 on the Mohs hardness scale and even more severe scratches at level 3. These results, while not shocking, are similar to the results we saw during the testing of the Galaxy Z Fold 3. While tough to quantify, they certainly don’t indicate a 45% increase in screen durability.

The outer cover screen is much more durable, which isn’t a surprise given that this screen is made from Corning Gorilla Glass Victus Plus. Gorilla Glass has always been more durable than the UTG that is used in the foldable interior display.