The face has a 24 hour analog display.  It's easy to set; the face of the watch pops out of the plastic band and it's easy to snap it back into the plastic.  I wear a 7.5" to 8" bracelet and can barely put it on (there's no clatch, it's a continous closed band) so it is made for a smaller wrist.  The package states for ages 8 and up so I'd think the size and concept of the wish reminder alarm would be fun for a tween or younger teen.  It keeps time accurately and looks fairly stylish and if you take the watch face out it's easily washable.  The packaging states it's water resistant though I didn't drastically test that.