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 Panasonic ZS7 and Sony HX9V side-by-side from the front, back and top in their relative dimensions. Panasonic ZS7 has external dimensions of 103 x 60 x 33 mm (4.06 x 2.36 x 1.3″) and weighs 218 g (0.48 lb / 7.69 oz) (including batteries). Sony HX9V has external dimensions of 105 x 59 x 34 mm (4.13 x 2.32 x 1.34″) and weighs 245 g (0.54 lb / 8.64 oz) (including batteries).
Below you can see the front view size comparison of Panasonic ZS7 and Sony HX9V. Panasonic ZS7 is 2mm narrower and 1mm thinner than Sony HX9V but it is also 1mm taller.
Now lets look at the top view comparison of Panasonic ZS7 and Sony HX9V.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Panasonic ZS7 is 27g lighter than the Sony HX9V but we don't think this will make a significant difference.
Unfortunately neither Panasonic Lumix DMC-ZS7 (Lumix DMC-TZ10) nor Sony Cyber-shot DSC-HX9V 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 ZS7 and Sony HX9V's LCD screens has the same diagonal size of 3".
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.