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 Samsung NX100 and Ricoh GXR A16 24-85mm F3.5-5.5 side-by-side from the front, back and top in their relative dimensions. Samsung NX100 has external dimensions of 120 x 71 x 35 mm (4.72 x 2.8 x 1.38″) and weighs 282 g (0.62 lb / 9.95 oz) (including batteries). Ricoh GXR A16 24-85mm F3.5-5.5 has external dimensions of 114 x 75 x 93 mm (4.49 x 2.95 x 3.66″) and weighs 550 g (including batteries).
Below you can see the front view size comparison of Samsung NX100 and Ricoh GXR A16 24-85mm F3.5-5.5. Samsung NX100 is 4mm shorter and 58mm thinner than Ricoh GXR A16 24-85mm F3.5-5.5 but it is also 6mm wider. As you can tell, actually this is not a fair size comparison since Ricoh GXR A16 24-85mm F3.5-5.5 has a built-in lens but Samsung NX100 doesn't. Once you put a lens on NX100, its thickness will increase significantly.
Now lets look at the top view comparison of Samsung NX100 and Ricoh GXR A16 24-85mm F3.5-5.5.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Samsung NX100 is significantly lighter (268g ) than the Ricoh GXR A16 24-85mm F3.5-5.5 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 NX100, the total kit will weigh much higher.
Unfortunately neither Samsung NX100 nor Ricoh GXR A16 24-85mm F3.5-5.5 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 Mirrorless Cameras with Weather Sealing
LCD Screen Size and Features
Samsung NX100 and Ricoh GXR A16 24-85mm F3.5-5.5'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.