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 50D and Canon SX700 HS side-by-side from the front, back and top in their relative dimensions. Canon 50D has external dimensions of 146 x 108 x 74 mm (5.75 x 4.25 x 2.91″) and weighs 822 g (1.81 lb / 29.00 oz) (including batteries). Canon SX700 HS has external dimensions of 113 x 66 x 35 mm (4.45 x 2.6 x 1.38″) and weighs 269 g (0.59 lb / 9.49 oz) (including batteries).
Below you can see the front-view size comparison of the Canon 50D and the Canon SX700 HS. Canon SX700 HS is clearly the smaller of the two cameras. Its body is 33mm narrower, 42mm shorter and 39mm thinner than Canon 50D. As you can tell, actually this is not a fair size comparison since Canon SX700 HS has a built-in lens but Canon 50D doesn't. Once you put a lens on 50D, its thickness will increase significantly.
Here is the back view size comparison of the Canon 50D and Canon SX700 HS.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Canon SX700 HS is significantly lighter (553g ) than the Canon 50D which may become a big advantage especially on long walking trips.
Again, this comparison may not be very useful in real life as we are comparing the weight of a camera with a built-in lens to the body-only weight of an interchangeable lens camera. Once you put a lens on 50D, the total kit will weigh much higher.
Weather Sealing
With its weather-sealed body, we believe that the 50D has a big advantage over the SX700 HS which doesn't provide any kind of environmental sealing.
LCD Screen Size and Features
Canon 50D and Canon SX700 HS's LCD screens have the same diagonal size of 3.00 inches.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.