Swipe is too overloaded on phones. Sometimes the same gesture is tied to two different actions. Swiping up overloads scrolling with getting the home screen. Another is swiping right for going back, when several apps also use that gesture too; gmail archive comes to mind. I prefer the buttons (digital and analog) on Android because it's a much different input that won't confuse different actions.

We have these incredible devices with many sensors, and the best we can do is smudge the screen more often?