Samsung Galaxy Z Flip review: four months with the folding phone

After 70-plus folds a day for four months, the screen is pristine, the hinge is smooth, and it's still the most interesting phone of the year

When Samsung released its Galaxy Z Flip, a phone with a screen that folds in half, the big question was whether the technology was really ready for use outside a lab. I spent the last four months with it to find out.

Samsung's second attempt at a smartphone with a folding screen, the Galaxy Z Flip promised one thing above all: a big, tall display that fits in a pocket.