Size and weight is a big decision factor when you are trying to find the ideal camera for your needs.
In this section, We are going to illustrate Nikon S9100 and Nikon P310 side-by-side from the front, back and top in their relative dimensions. Nikon S9100 has external dimensions of 105 x 62 x 35 mm (4.13 x 2.44 x 1.38″) and weighs 214 g (0.47 lb / 7.55 oz) (including batteries). Nikon P310 has external dimensions of 103 x 58 x 32 mm (4.06 x 2.28 x 1.26″) and weighs 194 g (0.43 lb / 6.84 oz) (including batteries).
Below you can see the front view size comparison of Nikon S9100 and Nikon P310. Nikon P310 is clearly the smaller of the two cameras. Its body is 2mm narrower, 4mm shorter and 3mm thinner than Nikon S9100.
![Nikon S9100 vs Nikon P310 Camera Size Comparison - Front View]()
Comparison image of Nikon S9100 and Nikon P310 Size, Weight and External Dimensions - Front View
Here is the back view size comparison of Nikon S9100 and Nikon P310.
![Nikon S9100 vs Nikon P310 Camera Size Comparison - Back View]()
Comparison image of Nikon S9100 and Nikon P310 Size and Weight - Back View
Now lets look at the top view comparison of Nikon S9100 and Nikon P310.
![Nikon S9100 vs Nikon P310 Camera Size Comparison - Top View]()
Top View Comparison image of Nikon S9100 and Nikon P310 Size
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Nikon P310 is 20g lighter than the Nikon S9100 but we don't think this will make a significant difference.
Weather Sealing
Unfortunately neither Nikon Coolpix S9100 nor Nikon Coolpix P310 provides any type of weather sealing in their body, so you have to give extra care especially when you are shooting outdoors. If weather sealing is a must-have feature for you, check these sections: Top Compact Cameras with Weather Sealing
LCD Screen Size and Features
Nikon S9100 and Nikon P310's LCD screens has the same diagonal size of 3".
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.