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-100 and Panasonic ZS99 side-by-side from the front, back and top in their relative dimensions. Olympus SP-100 has external dimensions of 122 x 91 x 133 mm (4.8 x 3.6 x 5.25″) and weighs 594 g (1.31 lb / 20.95 oz) (including batteries). Panasonic ZS99 has external dimensions of 112 x 68 x 43 mm (4.41 x 2.68 x 1.69″) and weighs 322 g (0.71 lb / 11.36 oz) (including batteries).
Below you can see the front-view size comparison of the Olympus SP-100 and the Panasonic ZS99. Panasonic ZS99 is clearly the smaller of the two cameras. Its body is 10mm narrower, 23mm shorter and 90mm thinner than Olympus SP-100.
Comparison image of the Olympus SP-100 and the Panasonic ZS99 Size, Weight and External Dimensions - Front View
Here is the back view size comparison of the Olympus SP-100 and Panasonic ZS99.
Comparison image of the Olympus SP-100 and the Panasonic ZS99 Size and Weight - Back View
Now lets look at the top view comparison of Olympus SP-100 and Panasonic ZS99.
Top View Comparison image of the Olympus SP-100 and the Panasonic ZS99 Size
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Panasonic ZS99 is significantly lighter (272g ) than the Olympus SP-100 which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Olympus Stylus SP-100 nor Panasonic Lumix DC-ZS99 (Lumix DC-TZ99) 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 Bridge Cameras with Weather Sealing Top Compact Cameras with Weather Sealing
LCD Screen Size and Features
Olympus SP-100 and Panasonic ZS99's LCD screens have the same diagonal size of 3.00 inches.
On the other hand, Panasonic ZS99 features a
Tilting screen where you can change the angle of the screen to make it easier to shoot from waist or over-the-head levels whereas the Olympus SP-100 has a fixed type screen which provides less flexibility in shooting positions compared to ZS99.