Other tests are more predictable. It’s not hard to scratch the screen’s plastic surface, and you can break the screen if you bend the hinge backward with a “considerable amount of force.”

These are clearly extreme tests, and you won’t necessarily run into similar trouble if you’re cautious. Still, they serve as a reminder that foldable phones are still quite fragile at the start of 2020. There’s a chance that upcoming phones like Samsung’s reportedly glass-covered Galaxy Z Flip are better at surviving in the real world. Until then, though, you’ll want to be gentle.

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