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 HX100V and Panasonic ZS8 side-by-side from the front, back and top in their relative dimensions. Sony HX100V has external dimensions of 122 x 87 x 93 mm (4.8 x 3.43 x 3.66″) and weighs 577 g (1.27 lb / 20.35 oz) (including batteries). Panasonic ZS8 has external dimensions of 105 x 58 x 33 mm (4.13 x 2.28 x 1.3″) and weighs 210 g (0.46 lb / 7.41 oz) (including batteries).
Below you can see the front view size comparison of Sony HX100V and Panasonic ZS8. Panasonic ZS8 is clearly the smaller of the two cameras. Its body is 17mm narrower, 29mm shorter and 60mm thinner than Sony HX100V.
Here is the back view size comparison of Sony HX100V and Panasonic ZS8.
Now lets look at the top view comparison of Sony HX100V and Panasonic ZS8.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Panasonic ZS8 is significantly lighter (367g ) than the Sony HX100V which may become a big advantage especially on long walking trips.
Unfortunately neither Sony Cyber-shot DSC-HX100V nor Panasonic Lumix DMC-ZS8 (Lumix DMC-TZ18) 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 Bridge Cameras with Weather Sealing Top Compact Cameras with Weather Sealing
LCD Screen Size and Features
Sony HX100V and Panasonic ZS8's LCD screens has the same diagonal size of 3.
On the other hand, Sony HX100V 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 Panasonic ZS8 has a fixed type screen which provides less flexibility in shooting positions compared to HX100V.