Casio’s 12.1-megapixel Exilim EX-H10 digital camera is, at 24.3 mm (just under 1 in) thick, the slimmest digital camera with a x10 optical telephoto zoom. At just 164 g (5.78 oz), it is also among the lightest. It can take 100 pictures a day for 10 days without needing to be charged.