The Sanyo Xacti E7 is a 21mm flat camera with 3x optical zoom and different technical treats. With its 7 megapixels, the diverse installed programs and 'quick n easy' photography will give you a lot of fun. The E7 feels sturdy and has a battery on board. The S7 also works on batteries and has 7.1 megapixels and 3x optical zoom.