Head-to-head
Anker Nebula Cosmos 4K SE vs ViewSonic PX748-4K
Side-by-side comparison of the Anker Nebula Cosmos 4K SE and ViewSonic PX748-4K: throw ratio, brightness, resolution, input lag and price — plus which one to buy.
Quick verdict
The Anker Nebula Cosmos 4K SE and ViewSonic PX748-4K are both standard-throw projectors in a similar price range. The ViewSonic PX748-4K is brighter — 4,000 vs 1,800 lumens. The ViewSonic PX748-4K can sit closer to the screen (throw ratio from 1.13 vs 1.20). The Anker Nebula Cosmos 4K SE costs less — about $1,000 vs $1,099.
| Spec | Anker Nebula Cosmos 4K SE | ViewSonic PX748-4K |
|---|---|---|
| Throw ratio | 1.2 | 1.13–1.47 |
| Brightness | 1,800 lumens | 4,000 lumens |
| Resolution | 4K UHD | 4K UHD |
| HDR | Yes | Yes |
| Light source | laser | lamp |
| Input lag | — | 4.2 ms |
| Price | ~$1,000 | ~$1,099 |
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Throw distance: Anker Nebula Cosmos 4K SE vs ViewSonic PX748-4K
How far each projector must sit from the screen for the same image size.
| Screen | Anker Nebula Cosmos 4K SE | ViewSonic PX748-4K |
|---|---|---|
| 80″ | 7.0 ft | 6.6–8.5 ft |
| 100″ | 8.7 ft | 8.2–10.7 ft |
| 120″ | 10.5 ft | 9.8–12.8 ft |
| 150″ | 13.1 ft | 12.3–16.0 ft |
Which should you buy?
- • Choose the ViewSonic PX748-4K if a brighter picture in ambient light matters most.
- • Choose the Anker Nebula Cosmos 4K SE if you want to spend less for similar core performance.
Frequently asked questions
The ViewSonic PX748-4K is brighter, rated at 4,000 lumens versus 1,800 lumens.
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