They both have a 7.1 megapixel sensor, 3x optical zoom, 2.5" LCD display, support for xD-Picture Cards, ISO 1600, underwater modes and more:
The Mju 760 differs by offering mechanical image stabilization not found in the 770SW. And while the 760 won't shy away from a little dampness, the 770SW downright prefers it just like its predecessors.The 760 costs $395 and the 770SW $595.
In fact, it can take pretty much anything you throw at it: it's shockproof against falls from as high as 1.5-meters, waterproof to a depth of 10-meters, freezeproof in temps as low as -10 Celsius, and can withstand loads up to 100-kg (220-pounds) for those tempted to risk a slip of this slimster into their back pocket.
It also packs a built-in "one-touch light" to find subjects tucked inside the reefs, an on-screen water pressure gauge, and a lens slathered with water repellent for droplet-free shooting.