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 Pentax Q10 and Pentax Q7 side-by-side from the front, back and top in their relative dimensions. Pentax Q10 has external dimensions of 102 x 58 x 34 mm (4.02 x 2.28 x 1.34″) and weighs 200 g (0.44 lb / 7.05 oz) (including batteries). Pentax Q7 has external dimensions of 102 x 58 x 34 mm (4.02 x 2.28 x 1.34″) and weighs 200 g (0.44 lb / 7.05 oz) (including batteries).
Below you can see the front view size comparison of Pentax Q10 and Pentax Q7. In this case, we can see that Pentax Q10 and Pentax Q7 have the exact same height, width and thickness.
Here is the back view size comparison of Pentax Q10 and Pentax Q7.
Now lets look at the top view comparison of Pentax Q10 and Pentax Q7.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Pentax Q10 and Pentax Q7 have exactly the same weight of 200g.
Also keep in mind that body weight is not the only deciding factor when comparing two interchangeable camera bodies, you have to also take into account the lenses that you will be using with these bodies. Since both Pentax Q10 and Pentax Q7 have the same Pentax Q lens mount and Small Sensor sized sensors, lenses will not be a differentiator on total size of the system.
Unfortunately neither Pentax Q10 nor Pentax Q7 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
Pentax Q10 and Pentax Q7'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.