@blaidyalah said:
Question about media sizes
Hello people, i just wanted to ask if there is any parameter for images (poster_path, backdrop_path)
that is Auto and depends on the user internet connection, instead of w500 w750 or original etc

Maybe that's what you want to know.

Make sure to read the documentation around images.
https://developer.themoviedb.org/docs/image-basics
https://developers.themoviedb.org/3/configuration/get-api-configuration
Sizes
https://api.themoviedb.org/3/configuration?api_key=THE_KEY

Download Supported Image Sizes (For use with HTML, App, programming etc ...)

|  poster  | backdrop |  still   | profile  |   logo   |
| :------: | :------: | :------: | :------: | :------: |
| -------- | -------- | -------- |    w45   |    w45   |
|    w92   | -------- |    w92   | -------- |    w92   |
|   w154   | -------- | -------- | -------- |   w154   |
|   w185   | -------- |   w185   |   w185   |   w185   |
| -------- |   w300   |   w300   | -------- |   w300   |
|   w342   | -------- | -------- | -------- | -------- |
|   w500   | -------- | -------- | -------- |   w500   |
| -------- | -------- | -------- |   h632   | -------- |
|   w780   |   w780   | -------- | -------- | -------- |
| -------- |  w1280   | -------- | -------- | -------- |
| original | original | original | original | original |  

Original Size is the size of the uploaded image.