Size and weight are big decision factors when you are trying to find the ideal camera for your needs.
In this section, we are going to illustrate the Sony QX10 and Nikon P310 side-by-side from the front, back and top in their relative dimensions. Sony QX10 has external dimensions of 62 x 62 x 33 mm (2.46 x 2.43 x 1.31″) and weighs 105 g (0.23 lb / 3.70 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 the Sony QX10 and the Nikon P310. Nikon P310 is 4mm shorter and 1mm thinner than Sony QX10 but it is also 41mm wider.
Here is the back view size comparison of the Sony QX10 and Nikon P310.
Now lets look at the top view comparison of Sony QX10 and Nikon P310.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Sony QX10 is significantly lighter (89g ) than the Nikon P310 which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Sony Cyber-shot DSC-QX10 nor Nikon Coolpix P310 provides any type of weather sealing in their bodies, 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 P310's 3.00" LCD screen is slightly larger than Sony QX10's screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.