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 ZS1 and Kodak M381 side-by-side from the front, back and top in their relative dimensions. Panasonic ZS1 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). Kodak M381 has external dimensions of 101 x 60 x 20 mm (3.98 x 2.36 x 0.79″) and weighs 153 g (0.34 lb / 5.40 oz) (including batteries).
Below you can see the front view size comparison of Panasonic ZS1 and Kodak M381. Panasonic ZS1 has the same height with Kodak M381. On the other hand, with a width of 103mm, it is 2 wider and also with a thickness of 33mm, it is 13mm thicker than Kodak M381.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Kodak M381 is significantly lighter (76g ) than the Panasonic ZS1 which may become a big advantage especially on long walking trips.
Unfortunately neither Panasonic Lumix DMC-ZS1 (Lumix DMC-TZ6) nor Kodak EasyShare M381 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
Kodak M381's 3" LCD screen is slightly larger than Panasonic ZS1's 2.7" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.