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 Sony T900 and Sony TX7 side-by-side from the front, back and top in their relative dimensions. Sony T900 has external dimensions of 98 x 58 x 16 mm (3.86 x 2.28 x 0.63″) and weighs 143 g (0.32 lb / 5.04 oz) (including batteries). Sony TX7 has external dimensions of 98 x 60 x 18 mm (3.86 x 2.36 x 0.71″) and weighs 149 g (0.33 lb / 5.26 oz) (including batteries).
Below you can see the front-view size comparison of the Sony T900 and the Sony TX7. Sony T900 has the same height with Sony TX7. On the other hand, with a width of 58mm, it is 2 narrower and also with a thickness of 16mm, it is 2mm thinner than Sony TX7.
Here is the back view size comparison of the Sony T900 and Sony TX7.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Sony T900 is 6g lighter than the Sony TX7 but we don't think this will make a significant difference.
Weather Sealing
Unfortunately neither the Sony Cyber-shot DSC-T900 nor Sony Cyber-shot DSC-TX7 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
LCD Screen Size and Features
Sony T900 and Sony TX7's LCD screens have the same diagonal size of 3.50 inches.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.