Nikon S6500 has a 16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor . You can shoot at maximum resolution of 4608 x 3456 pixels with aspect ratios of 1:1, 4:3, 3:2 and 16:9. S6500 has a native ISO range of 100 - 3200 but unfortunately, Nikon S6500 doesn't have RAW file support. If you need a Compact camera with a RAW support, consider Nikon Coolpix P7800 or Leica Q (Typ 116) in the same price range.
Nikon S6500 is not the highest resolution Small Sensor camera. Canon SX740 HS with its 21.0MP sensor is leading in this class. Check the comparison of Nikon S6500 vs Canon SX740 HS or take a look at Highest resolution Compact cameras list.
Let's look at how the size of the Nikon S6500's 1/2.3-inch sensor compares with other standard sensor sizes.
Comparison image of Nikon S6500 Sensor Size with other standard sensors
Sensor size is what determines the circle of confusion, and therefore how much
depth of field Nikon S6500 gives you at any given aperture.
You can
calculate
the exact depth of field for the Nikon S6500
at any focal length, aperture and subject distance, including the hyperfocal distance
for landscapes and how close you can get before the focus zone becomes too thin.
