While super-thin smartphones sounded cool, they made some compromises to achieve a slim form factor. Now, however, we're seeing the second advent of super-thin smartphones, and Samsung and Apple are at the front indeed. The device doesn't have the fancy edge display like the first Edge smartphones. A Look Into the PastLike we've said before, super-thin smartphones aren't a new thing. But before we celebrate the arrival of super-thin smartphones, it’s worth asking whether this is true progress—or just another distraction from the things that matter most: performance, durability, and lasting power.