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 Nikon D7000 and Olympus XZ-10 side-by-side from the front, back and top in their relative dimensions. 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). Olympus XZ-10 has external dimensions of 102 x 61 x 34 mm (4.03 x 2.41 x 1.35″) and weighs 221 g (0.49 lb / 7.80 oz) (including batteries).
Below you can see the front view size comparison of Nikon D7000 and Olympus XZ-10. Olympus XZ-10 is clearly the smaller of the two cameras. Its body is 30mm narrower, 44mm shorter and 43mm thinner than Nikon D7000. As you can tell, actually this is not a fair size comparison since Olympus XZ-10 has a built-in lens but Nikon D7000 doesn't. Once you put a lens on D7000, its thickness will increase significantly.
Now lets look at the top view comparison of Nikon D7000 and Olympus XZ-10.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Olympus XZ-10 is significantly lighter (559g ) 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.
With its weather sealed body, we believe that D7000 has a big advantage over XZ-10 which doesn't provide any kind of environmental sealing.
LCD Screen Size and Features
Nikon D7000 and Olympus XZ-10's LCD screens has the same diagonal size of 3".
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.