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 S9100 and Sony A37 side-by-side from the front, back and top in their relative dimensions. Nikon S9100 has external dimensions of 105 x 62 x 35 mm (4.13 x 2.44 x 1.38″) and weighs 214 g (0.47 lb / 7.55 oz) (including batteries). Sony A37 has external dimensions of 124 x 92 x 85 mm (4.88 x 3.62 x 3.35″) and weighs 506 g (1.12 lb / 17.85 oz) (including batteries).
Below you can see the front view size comparison of Nikon S9100 and Sony A37. Nikon S9100 is clearly the smaller of the two cameras. Its body is 19mm narrower, 30mm shorter and 50mm thinner than Sony A37. As you can tell, actually this is not a fair size comparison since Nikon S9100 has a built-in lens but Sony A37 doesn't. Once you put a lens on A37, its thickness will increase significantly.
![Nikon S9100 vs Sony A37 Camera Size Comparison - Front View]()
Comparison image of Nikon S9100 and Sony A37 Size, Weight and External Dimensions - Front View
Here is the back view size comparison of Nikon S9100 and Sony A37.
![Nikon S9100 vs Sony A37 Camera Size Comparison - Back View]()
Comparison image of Nikon S9100 and Sony A37 Size and Weight - Back View
Now lets look at the top view comparison of Nikon S9100 and Sony A37.
![Nikon S9100 vs Sony A37 Camera Size Comparison - Top View]()
Top View Comparison image of Nikon S9100 and Sony A37 Size
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Nikon S9100 is significantly lighter (292g ) than the Sony A37 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 A37, the total kit will weigh much higher.
Weather Sealing
Unfortunately neither Nikon Coolpix S9100 nor Sony SLT-A37 provides any type of weather sealing in their body, so you have to give extra care especially when you are shooting outdoors. If weather sealing is a must-have feature for you, check these sections: Top Compact Cameras with Weather Sealing Top DSLR Cameras with Weather Sealing
LCD Screen Size and Features
Nikon S9100's 3" LCD screen is slightly larger than Sony A37's 2.6" screen.
On the other hand, Sony A37 LCD screen has a
Tilting feature where you can change the angle of the screen to make it easier to shoot from waist or over the head levels. On the other hand, Nikon S9100 has a fixed type screen which provides less flexibility in shooting positions compared to A37.