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-800 UZ and Sony NEX-5T side-by-side from the front, back and top in their relative dimensions. Olympus SP-800 UZ has external dimensions of 110 x 90 x 91 mm (4.33 x 3.54 x 3.58″) and weighs 455 g (1.00 lb / 16.05 oz) (including batteries). Sony NEX-5T has external dimensions of 111 x 59 x 39 mm (4.36 x 2.31 x 1.53″) and weighs 276 g (0.61 lb / 9.74 oz) (including batteries).
Below you can see the front-view size comparison of the Olympus SP-800 UZ and the Sony NEX-5T. Sony NEX-5T is 31mm shorter and 52mm thinner than Olympus SP-800 UZ but it is also 1mm wider. As you can tell, actually this is not a fair size comparison since Olympus SP-800 UZ has a built-in lens but Sony NEX-5T doesn't. Once you put a lens on NEX-5T, its thickness will increase significantly.
Now lets look at the top view comparison of Olympus SP-800 UZ and Sony NEX-5T.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Sony NEX-5T is significantly lighter (179g ) than the Olympus SP-800 UZ 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 NEX-5T, the total kit will weigh much higher.
Weather Sealing
Unfortunately neither the Olympus SP-800 UZ nor Sony Alpha NEX-5T 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 Mirrorless Cameras with Weather Sealing
LCD Screen Size and Features
Olympus SP-800 UZ and Sony NEX-5T's LCD screens have the same diagonal size of 3.00 inches.
On the other hand, Sony NEX-5T features a
Tilting screen where you can change the angle of the screen to make it easier to shoot from waist or over-the-head levels whereas the Olympus SP-800 UZ has a fixed type screen which provides less flexibility in shooting positions compared to NEX-5T.