So ifyou stand in the middle of it and scream really loudly when you can't have the same Doctor Who book you've borrowed for the last 18 months, you get a brilliant echo that goes on and on and on - long after the security guard has asked you to step outside.
Both cameras have similar designs that scream "rugged" -- in other words, if you're a fan of Panasonic's original Toughbook design, you might find these attractive.