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 Olympus SP-610UZ and Canon ELPH 310 HS side-by-side from the front, back and top in their relative dimensions. Olympus SP-610UZ has external dimensions of 107 x 73 x 73 mm (4.21 x 2.87 x 2.87″) and weighs 405 g (0.89 lb / 14.29 oz) (including batteries). Canon ELPH 310 HS has external dimensions of 96 x 57 x 22 mm (3.78 x 2.24 x 0.87″) and weighs 140 g (0.31 lb / 4.94 oz) (including batteries).
Below you can see the front-view size comparison of the Olympus SP-610UZ and the Canon ELPH 310 HS. Canon ELPH 310 HS is clearly the smaller of the two cameras. Its body is 11mm narrower, 16mm shorter and 51mm thinner than Olympus SP-610UZ.
Comparison image of the Olympus SP-610UZ and the Canon ELPH 310 HS Size, Weight and External Dimensions - Front View
Here is the back view size comparison of the Olympus SP-610UZ and Canon ELPH 310 HS.
Comparison image of the Olympus SP-610UZ and the Canon ELPH 310 HS Size and Weight - Back View
Now lets look at the top view comparison of Olympus SP-610UZ and Canon ELPH 310 HS.
Top View Comparison image of the Olympus SP-610UZ and the Canon ELPH 310 HS Size
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Canon ELPH 310 HS is significantly lighter (265g ) than the Olympus SP-610UZ which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Olympus SP-610UZ nor Canon ELPH 310 HS (IXUS 230 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
Olympus SP-610UZ and Canon ELPH 310 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.