After years of stagnation, smartphone design is a field replete with innovation. Just months after the first-ever foldable phone, we’ve seen two more launches that present two alternative views of how a phone should fold.

They were off to a rocky start, but the Samsung Galaxy Fold and Huawei Mate X are selling out as fast as their companies can make them. Samsung is signing deals to ensure higher production capacity for next year and we’re sure Huawei is doing the same.

But will Motorola prove to be a dark horse? The Motorola Razr 2019 is showing that a clamshell form factor can be…

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