The original Galaxy Fold was an important smartphone, but in hindsight, it wasn't a very good one. The hinge was loose and floppy; the outside screen was wrapped by gigantic bezels; the inner screen had an ugly cutout. Just a year later, Samsung released a vastly improved Z Fold 2, which made significant improvements to the overall design and hardware, including the hinge and those screens. In fact, in my review of the Fold 2, I called it a "masterpiece," "phone of the year," and the "single biggest generation improvement in mobile history" because of all these changes. Samsung clearly...