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-610UZ and Panasonic S3 side-by-side from the front, back and top in their relative dimensions. Olympus SP-610UZ has external dimensions of 107 x 73 x 73 mm (4.21 x 2.87 x 2.87″) and weighs 405 g (0.89 lb / 14.29 oz) (including batteries). Panasonic S3 has external dimensions of 99 x 59 x 21 mm (3.9 x 2.32 x 0.83″) and weighs 117 g (0.26 lb / 4.13 oz) (including batteries).
Below you can see the front-view size comparison of the Olympus SP-610UZ and the Panasonic S3. Panasonic S3 is clearly the smaller of the two cameras. Its body is 8mm narrower, 14mm shorter and 52mm thinner than Olympus SP-610UZ.
Comparison image of the Olympus SP-610UZ and the Panasonic S3 Size, Weight and External Dimensions - Front View
Here is the back view size comparison of the Olympus SP-610UZ and Panasonic S3.
Comparison image of the Olympus SP-610UZ and the Panasonic S3 Size and Weight - Back View
Now lets look at the top view comparison of Olympus SP-610UZ and Panasonic S3.
Top View Comparison image of the Olympus SP-610UZ and the Panasonic S3 Size
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Panasonic S3 is significantly lighter (288g ) than the Olympus SP-610UZ which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Olympus SP-610UZ nor Panasonic Lumix DMC-S3 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
Olympus SP-610UZ's 3.00" LCD screen is slightly larger than Panasonic S3's 2.7" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.