Apple Watch Series 9 (45mm)
Smartwatches · 396×484 · 2023
Resolution
396×484
Diagonal
1.9"
Pixel density
329ppi
| Resolution | 396 × 484 |
|---|---|
| Resolution class | 396×484 |
| Diagonal | 1.9" |
| Pixel density | 329 ppi |
| Aspect ratio | 9:11 |
| Total pixels | 191,664 · 0.2 MP |
| Physical size | 30.6 × 37.4 mm |
| Screen area | 1.8 in² |
| Pixel pitch | 77.2 µm |
| Pixels vanish at | 26.5 cm |
| Orientation | Portrait |
| Released | 2023 |
How to read this
- Pixel density (ppi) is how many pixels fit in one inch. Resolution alone cannot tell you — you have to divide by the diagonal.
- The same 4K is 163 ppi on a 27" monitor and 68 ppi on a 65" TV. That is more than double, but a TV is watched from far away, so it does not matter.
- The distance at which pixels vanish comes from one arcminute, the limit of human sight. Once a pixel looks smaller than that, no eye can find the grid.
- Aspect ratio is width and height reduced to the simplest whole numbers. Modern phones are 19.5:9 or 20:9, so 16:9 video leaves black bars on the sides.
Frequently asked questions
Q. What is the Apple Watch Series 9 (45mm) screen resolution?
396×484 pixels — 191,664 in total, about 0.2 megapixels, which puts it in the 396×484 class.
Q. What is the pixel density of the Apple Watch Series 9 (45mm)?
329 ppi. That is the diagonal in pixels of a 396×484 grid divided by the 1.9" diagonal of the panel, and it makes each pixel about 77.2 micrometres across.
Q. How big is the Apple Watch Series 9 (45mm) screen in millimetres?
30.6 mm wide and 37.4 mm tall, worked out from the 1.9" diagonal and the 9:11 aspect ratio. The visible area is roughly 1.8 square inches.
Q. How far away do pixels stop being visible on the Apple Watch Series 9 (45mm)?
About 26.5 cm. That is where a pixel subtends less than one arcminute, the limit of human sight — closer than that and the grid starts to show.
Q. What aspect ratio does the Apple Watch Series 9 (45mm) use?
9:11, with the long edge 1.22× the short one. It is taller than it is wide, which suits a device you hold in one hand.
Screens of a similar size
The same diagonal at a different resolution means a different density. 4K is 163 ppi on a 27" monitor and 68 ppi on a 65" TV.
| Device | Resolution | Diagonal | Density |
|---|---|---|---|
| Apple Watch Ultra 2 | 410×502 | 1.92" | 338 ppi |
| Apple Watch Series 9 (41mm) | 352×430 | 1.69" | 329 ppi |
| Galaxy Watch6 (44mm) | 480×480 | 1.47" | 462 ppi |
| Galaxy Watch6 (40mm) | 432×432 | 1.31" | 466 ppi |
| Pixel Watch 2 | 384×384 | 1.2" | 453 ppi |
| iPhone 8 | 750×1334 | 4.7" | 326 ppi |
| iPhone SE (3rd gen) | 750×1334 | 4.7" | 326 ppi |
| iPhone 13 mini | 1080×2340 | 5.4" | 477 ppi |