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 ELPH 510 HS and Olympus SP-810 UZ side-by-side from the front, back and top in their relative dimensions. Canon ELPH 510 HS has external dimensions of 99 x 59 x 22 mm (3.9 x 2.32 x 0.87″) and weighs 206 g (0.45 lb / 7.27 oz) (including batteries). Olympus SP-810 UZ has external dimensions of 106 x 76 x 74 mm (4.17 x 2.99 x 2.91″) and weighs 413 g (0.91 lb / 14.57 oz) (including batteries).
Below you can see the front-view size comparison of the Canon ELPH 510 HS and the Olympus SP-810 UZ. Canon ELPH 510 HS is clearly the smaller of the two cameras. Its body is 7mm narrower, 17mm shorter and 52mm thinner than Olympus SP-810 UZ.
Comparison image of the Canon ELPH 510 HS and the Olympus SP-810 UZ Size, Weight and External Dimensions - Front View
Here is the back view size comparison of the Canon ELPH 510 HS and Olympus SP-810 UZ.
Comparison image of the Canon ELPH 510 HS and the Olympus SP-810 UZ Size and Weight - Back View
Now lets look at the top view comparison of Canon ELPH 510 HS and Olympus SP-810 UZ.
Top View Comparison image of the Canon ELPH 510 HS and the Olympus SP-810 UZ Size
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Canon ELPH 510 HS is significantly lighter (207g ) than the Olympus SP-810 UZ which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Canon ELPH 510 HS (IXUS 1100 HS) nor Olympus SP-810 UZ 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 Top Bridge Cameras with Weather Sealing
LCD Screen Size and Features
Canon ELPH 510 HS's 3.20" LCD screen is slightly larger than Olympus SP-810 UZ's 3" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.