What is the main difference between the Olympus Stylus 770 SW Digital Camera and the 720 SW??

The Price difference is about 75 dollars which doesn't matter to me if the difference is going to be worth it. Let me know!! :) And which would you recommend?

770 is the newer model and has a little more features

i think its worth getting the olympus stylus 770 because its waterproof (35ft underwater, i think), crush proof, freeze proof, shock proof... pretty much the camera is indestructible, but still produce awesome pictures....