After 32,000 folds, iPhone Duo’s hinge serves up a big surprise

Key Points:

• Tech reviewer Joanna Stern collaborated with hardware designer Aron Cohen to create a custom device named Hingey, which automatically folded the iPhone Duo over 32,000 times to test the durability of its hinge.
• After the extensive automated folding test, measurements showed the iPhone Duo’s hinge became slightly stiffer rather than looser, indicating strong durability and dispelling concerns about it becoming floppy over time.
• Apple’s hinge, engineered from more than 100 components, was designed to support the center of the display and deliver a smooth opening and closing experience, which Stern confirmed remained consistent after rigorous testing.
• In her review, Stern praised the iPhone Duo’s innovative features such as multiple folding poses, solid battery life, and multitasking capabilities, while noting drawbacks including a poor FaceTime camera, lack of telephoto lens and Face ID, and the device becoming hot during use.
• Overall, Stern and other early reviewers found Apple’s first foldable phone impressive, expressing anticipation for future versions that address current shortcomings.