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 ZS3 and Leica D-LUX 5 side-by-side from the front, back and top in their relative dimensions. Panasonic ZS3 has external dimensions of 103 x 60 x 33 mm (4.06 x 2.36 x 1.3″) and weighs 229 g (0.50 lb / 8.08 oz) (including batteries). Leica D-LUX 5 has external dimensions of 110 x 66 x 43 mm (4.33 x 2.6 x 1.69″) and weighs 271 g (0.60 lb / 9.56 oz) (including batteries).
Below you can see the front view size comparison of Panasonic ZS3 and Leica D-LUX 5. Panasonic ZS3 is clearly the smaller of the two cameras. Its body is 7mm narrower, 6mm shorter and 10mm thinner than Leica D-LUX 5.
Comparison image of Panasonic ZS3 and Leica D-LUX 5 Size, Weight and External Dimensions - Front View
Here is the back view size comparison of Panasonic ZS3 and Leica D-LUX 5.
Comparison image of Panasonic ZS3 and Leica D-LUX 5 Size and Weight - Back View
Now lets look at the top view comparison of Panasonic ZS3 and Leica D-LUX 5.
Top View Comparison image of Panasonic ZS3 and Leica D-LUX 5 Size
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Panasonic ZS3 is significantly lighter (42g ) than the Leica D-LUX 5 which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither Panasonic Lumix DMC-ZS3 (Lumix DMC-TZ7) nor Leica D-LUX 5 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 ZS3 and Leica D-LUX 5'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.