Sony H50 has a
9.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor . On the other hand, Nikon 1 AW1 has a
14.0MP 1-inch (13.2 x 8.8 mm ) sized CMOS sensor and features EXPEED 3A processor.
Nikon 1 AW1's sensor provides 5MP more than Sony H50's sensor, which gives a significant advantage in real life. You can print your images larger or crop more freely.
On the other hand, please keep in mind that Max sensor resolution is not the only determinant of resolving power. Factors such as the optical elements, low pass filter, pixel size and sensor technology also affects the final resolution of the captured image.
Below you can see the H50 and 1 AW1 sensor size comparison.
As seen above, Nikon 1 AW1 has a 4.1x Larger sensor area than Sony H50. 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.