Fujifilm Real 3D W3 has a
10.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features 3D RP(Real Photo) HD processor. On the other hand, Fujifilm XF1 has a
12.0MP 2/3-inch (8.8 x 6.6 mm ) sized EXRCMOS sensor .
Below you can see the Real 3D W3 and XF1 sensor size comparison.
As seen above, Fujifilm XF1 has a 2.1x Larger sensor area than Fujifilm Real 3D W3. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in same focal length and aperture.