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 Casio EX-Z450 and Casio EX-ZR1000 side-by-side from the front, back and top in their relative dimensions. Casio EX-Z450 has external dimensions of 81 x 56 x 21 mm (3.19 x 2.2 x 0.83″) and weighs 128 g (0.28 lb / 4.52 oz) (including batteries). Casio EX-ZR1000 has external dimensions of 108 x 62 x 37 mm (4.25 x 2.44 x 1.46″) and weighs 255 g (0.56 lb / 8.99 oz) (including batteries).
Below you can see the front view size comparison of Casio EX-Z450 and Casio EX-ZR1000. Casio EX-Z450 is clearly the smaller of the two cameras. Its body is 27mm narrower, 6mm shorter and 16mm thinner than Casio EX-ZR1000.
Here is the back view size comparison of Casio EX-Z450 and Casio EX-ZR1000.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Casio EX-Z450 is significantly lighter (127g ) than the Casio EX-ZR1000 which may become a big advantage especially on long walking trips.
Unfortunately neither Casio Exilim EX-Z450 nor Casio Exilim EX-ZR1000 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
Casio EX-Z450 and Casio EX-ZR1000's LCD screens has the same diagonal size of 3".
On the other hand, Casio EX-ZR1000 features a Tilting screen
where you can change the angle of the screen to make it easier to shoot from waist or over the head levels whereas the Casio EX-Z450 has a fixed type screen which provides less flexibility in shooting positions compared to EX-ZR1000.