Durability tests reveal how the iPhone Duo handles thousands of continuous folds

Credit: Aamir Siddiqui / Android Authority TL;DR Automated stress tests by YouTuber Tim Pan (10,500 folds plus sub-zero testing) and Joanna Stern (over 32,000 folds) show that the iPhone Duo’s 3D-printed titanium hinge remains sturdy and smooth all throughout. However, continuous folding significantly deepens the inner display crease, both visually and to the touch. Other iPhone Duo quirks include single-sided NFC positioning, lack of an internal earpiece (forcing speakerphone when open), minor