https://www.theguardian.com/technology/2020/jun/05/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.