Size and weight are big decision factors when you are trying to find the ideal camera for your needs.
In this section, we are going to illustrate the Canon 600D and Canon 7D side-by-side from the front, back and top in their relative dimensions. Canon 600D has external dimensions of 133 x 100 x 80 mm (5.24 x 3.94 x 3.15″) and weighs 570 g (1.26 lb / 20.11 oz) (including batteries). Canon 7D has external dimensions of 148 x 111 x 74 mm (5.83 x 4.37 x 2.91″) and weighs 860 g (1.90 lb / 30.34 oz) (including batteries).
Below you can see the front-view size comparison of the Canon 600D and the Canon 7D. Canon 600D is 15mm narrower and 11mm shorter than Canon 7D but it is also 6mm thicker.
Here is the back view size comparison of the Canon 600D and Canon 7D.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Canon 600D is significantly lighter (290g ) than the Canon 7D which may become a big advantage especially on long walking trips.
Also keep in mind that body weight is not the only deciding factor when comparing two interchangeable camera bodies, you also have to take into account the lenses that you will be using with these bodies. Since both Canon 600D and Canon 7D have the same Canon EF/EF-S lens mount and APS-C sized sensors, lenses will not be a differentiator on total size of the system.
Weather Sealing
Thanks to the weather-sealed body of the 7D, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the 600D.
LCD Screen Size and Features
Canon 600D and Canon 7D's LCD screens have the same diagonal size of 3.00 inches.
On the other hand, Canon 600D 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. Canon 7D's LCD screen is a fixed type which provides almost no flexibility in shooting positions compared to 600D.