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 Canon SX500 IS and Canon SX510 HS side-by-side from the front, back and top in their relative dimensions. Canon SX500 IS has external dimensions of 104 x 70 x 80 mm (4.09 x 2.76 x 3.15″) and weighs 341 g (0.75 lb / 12.03 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 Canon SX500 IS and the Canon SX510 HS. In this case, we can see that Canon SX500 IS and Canon SX510 HS have the exact same height, width and thickness.
Comparison image of the Canon SX500 IS and the Canon SX510 HS Size, Weight and External Dimensions - Front View
Now lets look at the top view comparison of Canon SX500 IS and Canon SX510 HS.
Top View Comparison image of the Canon SX500 IS and the the Canon SX510 HS Size
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Canon SX500 IS is 8g lighter than the Canon SX510 HS but we don't think this will make a significant difference.
Weather Sealing
Unfortunately neither the Canon PowerShot SX500 IS 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
Canon SX500 IS 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.