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-820 iHS and Nikon P310 side-by-side from the front, back and top in their relative dimensions. Olympus TG-820 iHS has external dimensions of 101 x 65 x 26 mm (3.98 x 2.56 x 1.02″) and weighs 206 g (0.45 lb / 7.27 oz) (including batteries). Nikon P310 has external dimensions of 103 x 58 x 32 mm (4.06 x 2.28 x 1.26″) and weighs 194 g (0.43 lb / 6.84 oz) (including batteries).
Below you can see the front-view size comparison of the Olympus TG-820 iHS and the Nikon P310. Olympus TG-820 iHS is 2mm narrower and 6mm thinner than Nikon P310 but it is also 7mm taller.
Here is the back view size comparison of the Olympus TG-820 iHS and Nikon P310.
Now lets look at the top view comparison of Olympus TG-820 iHS and Nikon P310.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Nikon P310 is 12g lighter than the Olympus TG-820 iHS but we don't think this will make a significant difference.
Weather Sealing
Thanks to the weather-sealed body of the TG-820 iHS, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the P310.
LCD Screen Size and Features
Olympus TG-820 iHS and Nikon P310'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.