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 Samsung TL225 and Canon ELPH 510 HS side-by-side from the front, back and top in their relative dimensions. Samsung TL225 has external dimensions of 100 x 60 x 19 mm (3.94 x 2.36 x 0.75″) and weighs 187 g (0.41 lb / 6.60 oz) (including batteries). Canon ELPH 510 HS has external dimensions of 99 x 59 x 22 mm (3.9 x 2.32 x 0.87″) and weighs 206 g (0.45 lb / 7.27 oz) (including batteries).
Below you can see the front view size comparison of Samsung TL225 and Canon ELPH 510 HS. Canon ELPH 510 HS is 1mm narrower and 1mm shorter than Samsung TL225 but it is also 3mm thicker.
Here is the back view size comparison of Samsung TL225 and Canon ELPH 510 HS.
Now lets look at the top view comparison of Samsung TL225 and Canon ELPH 510 HS.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Samsung TL225 is 19g lighter than the Canon ELPH 510 HS but we don't think this will make a significant difference.
Unfortunately neither Samsung TL225 (ST550) nor Canon ELPH 510 HS (IXUS 1100 HS) 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
Samsung TL225's 3.5" LCD screen is slightly larger than Canon ELPH 510 HS's 3.2" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.