Discover what happens when the iPhone Duo undergoes 32,000 machine folds. We look at the titanium hinge durability and how the inner screen crease ages.
Joanna Stern's video review uses a clever custom-built tool to measure how iPhone Duo's hinge holds up after four nights of automatic folds.
Reviewer Joanna Stern decided to test what folding and unfolding would do to her review iPhone Duo over time.
Apple’s revolutionary iPhone Duo In her week-long hands-on with Apple’s first foldable iPhone, Joanna Stern puts the $2,000 iPhone Duo through extreme testing—including building a custom robot to...
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