Olympus TG-5 has a
12.0MP (1/2. ) sized BSI-CMOS sensor and features TruePic VIII processor. On the other hand, Ricoh GXR P10 28-300mm has a
10.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor and features Smooth Imaging Engine IV processor.
Below you can see the TG-5 and GXR P10 28-300mm F3.5-5.6 VC sensor size comparison.
As seen above, Ricoh GXR P10 28-300mm has a infx Larger sensor area than Olympus TG-5. 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.