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 Sony a3500 and Sony A3000 side-by-side from the front, back and top in their relative dimensions. Sony a3500 has external dimensions of 128 x 91 x 85 mm (5.04 x 3.58 x 3.35″) and weighs 411 g (0.91 lb / 14.50 oz) (including batteries). Sony A3000 has external dimensions of 128 x 91 x 85 mm (5.04 x 3.58 x 3.35″) and weighs 411 g (0.91 lb / 14.50 oz) (including batteries).
Below you can see the front view size comparison of Sony a3500 and Sony A3000. In this case, we can see that Sony a3500 and Sony A3000 have the exact same height, width and thickness.
Now lets look at the top view comparison of Sony a3500 and Sony A3000.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Sony a3500 and Sony A3000 have exactly the same weight of 411g.
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 Sony a3500 and Sony A3000 have the same Sony E lens mount and APS-C sized sensors, lenses will not be a differentiator on total size of the system.
Unfortunately neither Sony Alpha a3500 nor Sony Alpha A3000 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
Sony a3500 and Sony A3000'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.