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 Nikon S70 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). Nikon S70 has external dimensions of 97 x 61 x 20 mm (3.82 x 2.4 x 0.79″) and weighs 160 g (0.35 lb / 5.64 oz) (including batteries).
Below you can see the front view size comparison of Panasonic ZS3 and Nikon S70. Nikon S70 is 6mm narrower and 13mm thinner than Panasonic ZS3 but it is also 1mm taller.
Here is the back view size comparison of Panasonic ZS3 and Nikon S70.
Now lets look at the top view comparison of Panasonic ZS3 and Nikon S70.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Nikon S70 is significantly lighter (69g ) than the Panasonic ZS3 which may become a big advantage especially on long walking trips.
Unfortunately neither Panasonic Lumix DMC-ZS3 (Lumix DMC-TZ7) nor Nikon Coolpix S70 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 S70's 3.5" LCD screen is slightly larger than Panasonic ZS3's 3" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.