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 Pentax VS20 and Panasonic ZS70 side-by-side from the front, back and top in their relative dimensions. Pentax VS20 has external dimensions of 111 x 61 x 38 mm (4.37 x 2.4 x 1.5″) and weighs 235 g (0.52 lb / 8.29 oz) (including batteries). Panasonic ZS70 has external dimensions of 112 x 67 x 41 mm (4.41 x 2.64 x 1.61″) and weighs 322 g (0.71 lb / 11.36 oz) (including batteries).
Below you can see the front-view size comparison of the Pentax VS20 and the Panasonic ZS70. Pentax VS20 is clearly the smaller of the two cameras. Its body is 1mm narrower, 6mm shorter and 3mm thinner than Panasonic ZS70.
Here is the back view size comparison of the Pentax VS20 and Panasonic ZS70.
Now lets look at the top view comparison of Pentax VS20 and Panasonic ZS70.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Pentax VS20 is significantly lighter (87g ) than the Panasonic ZS70 which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Pentax Optio VS20 nor Panasonic Lumix DMC-ZS70 (Lumix DC-TZ90) 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
Pentax VS20 and Panasonic ZS70's LCD screens have the same diagonal size of 3.00 inches.
On the other hand, Panasonic ZS70 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 Pentax VS20 has a fixed type screen which provides less flexibility in shooting positions compared to ZS70.