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 Canon ELPH 150 IS and Nikon D7000 side-by-side from the front, back and top in their relative dimensions. Canon ELPH 150 IS has external dimensions of 95 x 57 x 24 mm (3.74 x 2.24 x 0.94″) and weighs 142 g (0.31 lb / 5.01 oz) (including batteries). Nikon D7000 has external dimensions of 132 x 105 x 77 mm (5.2 x 4.13 x 3.03″) and weighs 780 g (1.72 lb / 27.51 oz) (including batteries).
Below you can see the front view size comparison of Canon ELPH 150 IS and Nikon D7000. Canon ELPH 150 IS is clearly the smaller of the two cameras. Its body is 37mm narrower, 48mm shorter and 53mm thinner than Nikon D7000. As you can tell, actually this is not a fair size comparison since Canon ELPH 150 IS has a built-in lens but Nikon D7000 doesn't. Once you put a lens on D7000, its thickness will increase significantly.
Comparison image of Canon ELPH 150 IS and Nikon D7000 Size, Weight and External Dimensions - Front View
Now lets look at the top view comparison of Canon ELPH 150 IS and Nikon D7000.
Top View Comparison image of Canon ELPH 150 IS and Nikon D7000 Size
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Canon ELPH 150 IS is significantly lighter (638g ) than the Nikon D7000 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 D7000, the total kit will weigh much higher.
Weather Sealing
Thanks to the weather sealed body of D7000, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to ELPH 150 IS.
LCD Screen Size and Features
Nikon D7000's 3.00" LCD screen is slightly larger than Canon ELPH 150 IS's 2.7" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.