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 Nikon S6100 and Canon SX510 HS side-by-side from the front, back and top in their relative dimensions. Nikon S6100 has external dimensions of 98 x 58 x 27 mm (3.86 x 2.28 x 1.06″) and weighs 175 g (0.39 lb / 6.17 oz) (including batteries). Canon SX510 HS has external dimensions of 104 x 70 x 80 mm (4.09 x 2.76 x 3.15″) and weighs 349 g (0.77 lb / 12.31 oz) (including batteries).
Below you can see the front-view size comparison of the Nikon S6100 and the Canon SX510 HS. Nikon S6100 is clearly the smaller of the two cameras. Its body is 6mm narrower, 12mm shorter and 53mm thinner than Canon SX510 HS.
Now lets look at the top view comparison of Nikon S6100 and Canon SX510 HS.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Nikon S6100 is significantly lighter (174g ) than the Canon SX510 HS which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Nikon Coolpix S6100 nor Canon PowerShot SX510 HS 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 S6100 and Canon SX510 HS's LCD screens have the same diagonal size of 3.00 inches.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.