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 Sony W710 and Panasonic ZS70 side-by-side from the front, back and top in their relative dimensions. Sony W710 has external dimensions of 97 x 55 x 20 mm (3.82 x 2.17 x 0.79″) and weighs 114 g (0.25 lb / 4.02 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 Sony W710 and Panasonic ZS70. Sony W710 is clearly the smaller of the two cameras. Its body is 15mm narrower, 12mm shorter and 21mm thinner than Panasonic ZS70.
Here is the back view size comparison of Sony W710 and Panasonic ZS70.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Sony W710 is significantly lighter (208g ) than the Panasonic ZS70 which may become a big advantage especially on long walking trips.
Unfortunately neither Sony Cyber-shot DSC-W710 nor Panasonic Lumix DMC-ZS70 (Lumix DC-TZ90) 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
Panasonic ZS70's 3" LCD screen is slightly larger than Sony W710's 2.7" screen.
In addition to the size advantage, Panasonic ZS70 LCD screen also has a Tilting feature
where you can change the angle of the screen to make it easier to shoot from waist or over the head levels. On the other hand, Sony W710 has a fixed type screen which provides less flexibility in shooting positions compared to ZS70.