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 Sony H400 and Panasonic LZ40 side-by-side from the front, back and top in their relative dimensions. 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). Panasonic LZ40 has external dimensions of 126 x 87 x 94 mm (4.96 x 3.43 x 3.7″) and weighs 524 g (1.16 lb / 18.48 oz) (including batteries).
Below you can see the front-view size comparison of the Sony H400 and the Panasonic LZ40. Panasonic LZ40 is clearly the smaller of the two cameras. Its body is 4mm narrower, 8mm shorter and 28mm thinner than Sony H400.
Comparison image of the Sony H400 and the Panasonic LZ40 Size, Weight and External Dimensions - Front View
Now lets look at the top view comparison of Sony H400 and Panasonic LZ40.
Top View Comparison image of the Sony H400 and the Panasonic LZ40 Size
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Panasonic LZ40 is significantly lighter (104g ) than the Sony H400 which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Sony Cyber-shot DSC-H400 nor Panasonic Lumix DMC-LZ40 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
Sony H400 and Panasonic LZ40'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.