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 Panasonic S3 and Olympus SP-610UZ side-by-side from the front, back and top in their relative dimensions. 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). 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).
Below you can see the front-view size comparison of the Panasonic S3 and the Olympus SP-610UZ. 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 Panasonic S3 and the Olympus SP-610UZ Size, Weight and External Dimensions - Front View
Here is the back view size comparison of the Panasonic S3 and Olympus SP-610UZ.
Comparison image of the Panasonic S3 and the Olympus SP-610UZ Size and Weight - Back View
Now lets look at the top view comparison of Panasonic S3 and Olympus SP-610UZ.
Top View Comparison image of the Panasonic S3 and the Olympus SP-610UZ 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 Panasonic Lumix DMC-S3 nor Olympus SP-610UZ 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.