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 Nikon P300 and Panasonic ZS25 side-by-side from the front, back and top in their relative dimensions. Nikon P300 has external dimensions of 103 x 58 x 32 mm (4.06 x 2.28 x 1.26″) and weighs 189 g (0.42 lb / 6.67 oz) (including batteries). Panasonic ZS25 has external dimensions of 105 x 59 x 28 mm (4.13 x 2.32 x 1.1″) and weighs 193 g (0.43 lb / 6.81 oz) (including batteries).
Below you can see the front view size comparison of Nikon P300 and Panasonic ZS25. Nikon P300 is 2mm narrower and 1mm shorter than Panasonic ZS25 but it is also 4mm thicker.
Comparison image of Nikon P300 and Panasonic ZS25 Size, Weight and External Dimensions - Front View
Here is the back view size comparison of Nikon P300 and Panasonic ZS25.
Comparison image of Nikon P300 and Panasonic ZS25 Size and Weight - Back View
Now lets look at the top view comparison of Nikon P300 and Panasonic ZS25.
Top View Comparison image of Nikon P300 and Panasonic ZS25 Size
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Nikon P300 is 4g lighter than the Panasonic ZS25 but we don't think this will make a significant difference.
Weather Sealing
Unfortunately neither Nikon Coolpix P300 nor Panasonic Lumix DMC-ZS25 (Lumix DMC-TZ35) 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
Nikon P300 and Panasonic ZS25'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.