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 E-M10 III and Olympus TG-860 side-by-side from the front, back and top in their relative dimensions. Olympus E-M10 III has external dimensions of 122 x 84 x 50 mm (4.8 x 3.31 x 1.97″) and weighs 410 g (0.90 lb / 14.46 oz) (including batteries). Olympus TG-860 has external dimensions of 110 x 64 x 28 mm (5.12 x 2.52 x 1.1″) and weighs 224 g (0.49 lb / 7.90 oz) (including batteries).
Below you can see the front-view size comparison of the Olympus E-M10 III and the Olympus TG-860. Olympus TG-860 is clearly the smaller of the two cameras. Its body is 12mm narrower, 20mm shorter and 22mm thinner than Olympus E-M10 III. As you can tell, actually this is not a fair size comparison since Olympus TG-860 has a built-in lens but Olympus E-M10 III doesn't. Once you put a lens on E-M10 III, its thickness will increase significantly.
Here is the back view size comparison of the Olympus E-M10 III and Olympus TG-860.
Now lets look at the top view comparison of Olympus E-M10 III and Olympus TG-860.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Olympus TG-860 is significantly lighter (186g ) than the Olympus E-M10 III which may become a big advantage especially on long walking trips.
Again, this comparison may not be very useful in real life as we are comparing the weight of a camera with a built-in lens to the body-only weight of an interchangeable lens camera. Once you put a lens on E-M10 III, the total kit will weigh much higher.
Weather Sealing
Thanks to the weather-sealed body of the TG-860, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the E-M10 III.
LCD Screen Size and Features
Olympus E-M10 III and Olympus TG-860's LCD screens have the same diagonal size of 3.00 inches.
Both cameras feature
Tilting screens where you can change the angle of the screen to make it easier to shoot from waist or over-the-head levels.