Canon SL2 weighs 453 g (1.00 lb / 15.98 oz) and has external dimensions of 122 x 93 x 70 mm (4.8 x 3.66 x 2.76″). Considering that the average weight of DSLR type cameras is 774g, Canon SL2 is a remarkably light camera for its class. With a thickness of 70mm, it has an average thickness for its class.
Here is the front and top view image of Canon SL2 with the dimensions:
In order to give you a better idea about the real life size of Canon SL2, we have added an image of how it looks next to a credit card and an AA type battery.
Now let's compare Canon SL2 size with the camera that it replaced: Canon 100D. Canon 100D is clearly the smaller of the two cameras. Its body is 5mm narrower, 2mm shorter and 1mm thinner than Canon SL2.
Below you can find the comparison of the weight and thickness of Canon SL2 with its main competitors:
Canon SL2 doesn't have any environmental sealings on its body so you got to be extra careful to protect it against water and dust. If you shoot under these conditions very often, consider checking Top DSLR Cameras with Weather Sealing page.