Olympus TG-6 has a
12.0MP (1/2. ) sized BSI-CMOS sensor and features TruePic VIII processor. On the other hand, Panasonic ZS1 has a
10.0MP 1/2.5-inch (5.744 x 4.308 mm ) sized CCD sensor .
Below you can see the TG-6 and ZS1 sensor size comparison.
As seen above, Panasonic ZS1 has a infx Larger sensor area than Olympus TG-6. 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.