Resolution is the total number of pixels in a display or digital image, including photos from a camera sensor. Higher resolution means more pixels, which allows for sharper detail, clearer images, and better quality when viewed large or zoomed in.
Common smartphone display resolution types and sizes
Screen resolution is typically expressed as the number of pixels along the horizontal and vertical sides of the display rectangle (for example, 2400 × 1080). Modern smartphones follow several common resolution standards.
| Name | In PX |
|---|---|
| HD | 1280 x 720 pixels |
| FHD | 1920 x 1080 pixels |
| Quad HD | 2560 x 1440 pixels |
| 4K | 3840 x 2160 pixels |
| 8K UHD | 7680 x 4320 pixels |



