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 Panasonic LZ30 and Sony H400 side-by-side from the front, back and top in their relative dimensions. Panasonic LZ30 has external dimensions of 124 x 84 x 92 mm (4.88 x 3.31 x 3.62″) and weighs 552 g (1.22 lb / 19.47 oz) (including batteries). Sony H400 has external dimensions of 130 x 95 x 122 mm (5.1 x 3.74 x 4.81″) and weighs 628 g (1.38 lb / 22.15 oz) (including batteries).
Below you can see the front-view size comparison of the Panasonic LZ30 and the Sony H400. Panasonic LZ30 is clearly the smaller of the two cameras. Its body is 6mm narrower, 11mm shorter and 30mm thinner than Sony H400.
Comparison image of the Panasonic LZ30 and the Sony H400 Size, Weight and External Dimensions - Front View
Here is the back view size comparison of the Panasonic LZ30 and Sony H400.
Comparison image of the Panasonic LZ30 and the Sony H400 Size and Weight - Back View
Now lets look at the top view comparison of Panasonic LZ30 and Sony H400.
Top View Comparison image of the Panasonic LZ30 and the Sony H400 Size
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Panasonic LZ30 is 76g lighter than the Sony H400 but we don't think this will make a significant difference.
Weather Sealing
Unfortunately neither the Panasonic Lumix DMC-LZ30 nor Sony Cyber-shot DSC-H400 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
LCD Screen Size and Features
Panasonic LZ30 and Sony H400's LCD screens have the same diagonal size of 3.00 inches.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.