1284x2778 resolution
1284 × 2778
Phone large 19.5:9 · 19.5:9 (approximately) · 3,566,952 pixels · 3.57 megapixels · Phone · quoted portrait
What 1284x2778 is
The larger 19.5:9 phone panel, the same shape as 1170×2532 with about 20% more pixels.
The numbers
| Width | 1,284 px |
| Height | 2,778 px |
| Aspect ratio | 19.5:9 (nearest — the exact reduction is not a standard shape) |
| Total pixels | 3,566,952 |
| Megapixels | 3.57 MP |
| Compared with 1080p | 1.72× the pixels |
| Compared with 4K UHD | 0.43× the pixels |
What 1284x2778 costs to move and to store
A frame is width × height × three bytes of colour, before any compression touches it. At 1284 × 2778 that is 10.7 MB per frame, and video is frames per second:
| Frame rate | Uncompressed | An hour of it |
|---|---|---|
| 24 fps | 257 MB/s | 0.92 TB |
| 30 fps | 321 MB/s | 1.16 TB |
| 60 fps | 642 MB/s | 2.31 TB |
| 120 fps | 1.28 GB/s | 4.62 TB |
Nobody ships that. It is the number codecs exist to get away from — a streamed 1284x2778 feed runs at a few tens of megabits, which is a compression ratio of several hundred to one, and it is why a still frame from a stream looks worse than a photograph of the same scene.
How close you have to sit for 1284x2778 to be worth it
The eye resolves about one arcminute of detail. Past a certain distance the pixels merge whatever the panel does, and a higher resolution stops being visible rather than stopping being better. That distance is the pixel pitch divided by the tangent of one arcminute:
| Screen | Pixels merge beyond |
|---|---|
| 13.3 in monitor or laptop | 0.38 m (1.2 ft) |
| 15.6 in monitor or laptop | 0.45 m (1.5 ft) |
| 24 in monitor or laptop | 0.68 m (2.2 ft) |
| 27 in monitor or laptop | 0.77 m (2.5 ft) |
| 32 in monitor or laptop | 0.91 m (3 ft) |
| 43 in television | 1.23 m (4 ft) |
| 55 in television | 1.57 m (5.1 ft) |
| 65 in television | 1.85 m (6.1 ft) |
| 75 in television | 2.14 m (7 ft) |
Sitting further back than the figure for your screen, 1284x2778 and the next resolution down look the same. That is the whole argument about 4K televisions in ordinary living rooms: the resolution is real and the seating position usually is not close enough to show it.
Pixel density at common screen sizes
A resolution on its own says nothing about sharpness — the same 1284x2778 panel is dense on a laptop and coarse on a television. Density is the diagonal in pixels divided by the diagonal in inches.
| Diagonal | Pixel density | |
|---|---|---|
| 13.3 in | 230 PPI | High density — the OS will scale the interface |
| 15.6 in | 196 PPI | Sharp |
| 24 in | 128 PPI | Comfortable at native size |
| 27 in | 113 PPI | Comfortable at native size |
| 32 in | 96 PPI | Coarse — individual pixels are visible at desk distance |
Other phone resolutions
| Resolution | Name | Ratio | Megapixels |
|---|---|---|---|
| 1080×2400 | FHD+ phone | 20:9 | 2.59 MP |
| 1170×2532 | Phone 19.5:9 | 19.5:9 | 2.96 MP |
| 1440×3200 | QHD+ phone | 20:9 | 4.61 MP |
Closest in total pixels
- 2560×1440 — QHD (1440p)
- 2360×1640 — Tablet 10.9-inch
- 2048×1536 — Tablet 4:3
- 2560×1600 — WQXGA
- 3840×1080 — DFHD
- 1170×2532 — Phone 19.5:9
- 2560×1080 — UW-FHD
- 1080×2400 — FHD+ phone
Frequently asked questions
What is the aspect ratio of 1284x2778?
19.5:9 — approximately. 1284×2778 does not reduce to a tidy ratio, so it is very slightly off the standard shape.
How many pixels is 1284x2778?
3,566,952 pixels, or 3.57 megapixels.
Is 1284x2778 higher resolution than 1080p?
1284x2778 has 1.72× as many pixels as a 1920×1080 frame.
What size screen suits 1284x2778?
Pixel density is what decides that. 230 PPI at 13.3 in, 196 PPI at 15.6 in, 128 PPI at 24 in, 113 PPI at 27 in, 96 PPI at 32 in. Below roughly 110 PPI text starts to look coarse; above about 200 the operating system will usually scale the interface rather than render it at native size.