The WX5 has a 5x optical zoom while the TX9 has a 4x optical zoom; there’s also a new “Background Defocus” mode which automatically shoots two images and then combines them to keep the foreground subject crisp and the background suitably blurry. A “New Soft Skin” mode, meanwhile, does a little Photoshop-style editing in-camera, automatically getting rid of lines and wrinkles. The WX5 has a 2.8-inch preview display while the TX9 scales that up to 3.5-inches.
As for the DSX-T99, that has a 4x optical zoom, sweep panorama (with underwater mode, but no 3D support) and 720p HD video recording, together with a 3-inch preview display. All three models will go on sale this summer, pricing TBA.