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 Canon 4000D and Panasonic ZS35 side-by-side from the front, back and top in their relative dimensions. Canon 4000D has external dimensions of 129 x 102 x 77 mm (5.08 x 4.02 x 3.03″) and weighs 436 g (0.96 lb / 15.38 oz) (including batteries). Panasonic ZS35 has external dimensions of and weighs 305 g (including batteries).
Below you can see the front-view size comparison of the Canon 4000D and the Panasonic ZS35. Panasonic ZS35 is clearly the smaller of the two cameras. Its body is 22mm narrower, 40mm shorter and 45mm thinner than Canon 4000D. As you can tell, actually this is not a fair size comparison since Panasonic ZS35 has a built-in lens but Canon 4000D doesn't. Once you put a lens on 4000D, its thickness will increase significantly.
Now lets look at the top view comparison of Canon 4000D and Panasonic ZS35.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Panasonic ZS35 is significantly lighter (131g ) than the Canon 4000D 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 4000D, the total kit will weigh much higher.
Weather Sealing
Unfortunately neither the Canon EOS 4000D nor Panasonic Lumix DMC-ZS35 (Lumix DMC-TZ55) 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 DSLR Cameras with Weather Sealing Top Compact Cameras with Weather Sealing
LCD Screen Size and Features
Panasonic ZS35's 3.00" LCD screen is slightly larger than Canon 4000D's 2.7 screen.
In addition to the size advantage, Panasonic ZS35 LCD screen also 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, Canon 4000D has a fixed type screen which provides less flexibility in shooting positions compared to ZS35.