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 TG-310 and Canon G15 side-by-side from the front, back and top in their relative dimensions. Olympus TG-310 has external dimensions of 96 x 63 x 23 mm (3.78 x 2.48 x 0.91″) and weighs 155 g (0.34 lb / 5.47 oz) (including batteries). Canon G15 has external dimensions of 107 x 76 x 40 mm (4.21 x 2.99 x 1.57″) and weighs 352 g (0.78 lb / 12.42 oz) (including batteries).
Below you can see the front-view size comparison of the Olympus TG-310 and the Canon G15. Olympus TG-310 is clearly the smaller of the two cameras. Its body is 11mm narrower, 13mm shorter and 17mm thinner than Canon G15.
Now lets look at the top view comparison of Olympus TG-310 and Canon G15.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Olympus TG-310 is significantly lighter (197g ) than the Canon G15 which may become a big advantage especially on long walking trips.
Weather Sealing
Thanks to the weather-sealed body of the TG-310, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the G15.
LCD Screen Size and Features
Canon G15's 3.00" LCD screen is slightly larger than Olympus TG-310's 2.7 screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.