On a phone, 480p might be tolerable. On any screen larger than 24 inches, 480p looks "stretched," leading to eye strain. 1080p stays crisp even on a 65-inch TV.
Also known as DVD quality, this has a resolution of 720x480 pixels. It’s functional but lacks sharpness, especially on larger screens. game of thrones season 1 complete 480p vs 1080156 better