Size and weight are big decision factors when you are trying to find the ideal camera for your needs.
In this section, we are going to illustrate the Sony A6100 and Sony a5000 side-by-side from the front, back and top in their relative dimensions. Sony A6100 has external dimensions of 120 x 67 x 59 mm (4.72 x 2.64 x 2.32″) and weighs 396 g (0.87 lb / 13.97 oz) (including batteries). Sony a5000 has external dimensions of 110 x 63 x 36 mm (4.33 x 2.48 x 1.42″) and weighs 269 g (0.59 lb / 9.49 oz) (including batteries).
Below you can see the front-view size comparison of the Sony A6100 and the Sony a5000. Sony a5000 is clearly the smaller of the two cameras. Its body is 10mm narrower, 4mm shorter and 23mm thinner than Sony A6100.
Here is the back view size comparison of the Sony A6100 and Sony a5000.
Now lets look at the top view comparison of Sony A6100 and Sony a5000.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Sony a5000 is significantly lighter (127g ) than the Sony A6100 which may become a big advantage especially on long walking trips.
Also keep in mind that body weight is not the only deciding factor when comparing two interchangeable camera bodies, you also have to take into account the lenses that you will be using with these bodies. Since both Sony A6100 and Sony a5000 have the same Sony E lens mount and APS-C sized sensors, lenses will not be a differentiator on total size of the system.
Weather Sealing
Unfortunately neither the Sony Alpha a6100 nor Sony Alpha a5000 provides any type of weather sealing in their bodies, 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
Sony A6100 and Sony a5000's LCD screens have the same diagonal size of 3.00 inches.
Both cameras feature
Tilting screens where you can change the angle of the screen to make it easier to shoot from waist or over-the-head levels.