Size and weight is a big decision factor when you are trying to find the ideal camera for your needs.
In this section, We are going to illustrate Olympus VG-145 and Sony TX66 side-by-side from the front, back and top in their relative dimensions. Olympus VG-145 has external dimensions of 96 x 57 x 19 mm (3.78 x 2.24 x 0.75″) and weighs 120 g (0.26 lb / 4.23 oz) (including batteries). Sony TX66 has external dimensions of 93 x 54 x 13 mm (3.66 x 2.13 x 0.51″) and weighs 109 g (0.24 lb / 3.84 oz) (including batteries).
Below you can see the front view size comparison of Olympus VG-145 and Sony TX66. Sony TX66 is clearly the smaller of the two cameras. Its body is 3mm narrower, 3mm shorter and 6mm thinner than Olympus VG-145.
Here is the back view size comparison of Olympus VG-145 and Sony TX66.
Now lets look at the top view comparison of Olympus VG-145 and Sony TX66.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Sony TX66 is 11g lighter than the Olympus VG-145 but we don't think this will make a significant difference.
Unfortunately neither Olympus VG-145 nor Sony Cyber-shot DSC-TX66 provides any type of weather sealing in their body, 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
Sony TX66's 3.3" LCD screen is slightly larger than Olympus VG-145's 3" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.