The Galaxy Z Flip's glass screen isn't very durable
When Samsung unveiled the Galaxy Z Flip, its display's extra-thin glass drew the attention of many people. It theoretically offered a better feel and more durability than the fragile plastic of the Galaxy Fold. You might not want to get your hopes up, however.
from https://www.engadget.com/2020/02/16/samsung-galaxy-z-flip-glass-durability-test/
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