Should I be concerned about how images will display on high pixel density mobile devices?

Question

Images

For example, the image has the highest resolution of 1920x1080 pixels. But there are devices whose resolution is noticeably higher than the resolution of the image (Sony Xperia with its 3840x2160 pixels). If I understand correctly, the image on such devices will become somewhat blurry, right?

Answer 1

There, the scale is the same as that of other phones. The image will not be blurred. I have a resolution of 1080 on my phone, but I can watch videos in 360 / 480p just like on an old 5s