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 ZR3 and Samsung EX2F side-by-side from the front, back and top in their relative dimensions. Panasonic ZR3 has external dimensions of 98 x 55 x 26 mm (3.86 x 2.17 x 1.02″) and weighs 159 g (0.35 lb / 5.61 oz) (including batteries). Samsung EX2F has external dimensions of 112 x 62 x 29 mm (4.41 x 2.44 x 1.14″) and weighs 294 g (0.65 lb / 10.37 oz) (including batteries).
Below you can see the front view size comparison of Panasonic ZR3 and Samsung EX2F. Panasonic ZR3 is clearly the smaller of the two cameras. Its body is 14mm narrower, 7mm shorter and 3mm thinner than Samsung EX2F.
Now lets look at the top view comparison of Panasonic ZR3 and Samsung EX2F.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Panasonic ZR3 is significantly lighter (135g ) than the Samsung EX2F which may become a big advantage especially on long walking trips.
Unfortunately neither Panasonic Lumix DMC-ZR3 (Lumix DMC-ZX3) nor Samsung EX2F 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
Samsung EX2F's 3.00" LCD screen is slightly larger than Panasonic ZR3's 2.7 screen.
Moreover, Samsung EX2F sports a Fully Articulated screen
which you can change the angle and position of the screen almost freely, making it possible to shoot from waist or over the head levels, and especially very useful for shooting selfies and video. On the other hand, Panasonic ZR3 has a fixed type screen which provides almost no flexibility in shooting positions compared to EX2F.