There is a major (to me) difference between the twill shorts and the denim shorts.  I'm including both reviews here

Twill:
If you love the slacks, you will love these shorts as well.  Very well designed cargo pockets are perfect for all smartphones.

Denim:
Instead of two well designed cargo pockets it only comes with one (left pocket).  The right pocket is a normal, average design cargo pocket.  If you only carry your smartphone in your left cargo, this is fine, but you won't have the same option with the other pocket for some reason.

Apparently if you review two similar items here only the first sticks.  This updated review is meant to fix this.