Nebula Cosmos 4K SE
#11 in 4KFull review
A bright 4K Google TV projector for living rooms and gaming that you can move between rooms. It is a step up in brightness from most portables.
Amazon $1,099.99$1,099.99
The Nebula Cosmos 4K SE is the better projector overall, rated 4.2 to 4.0. The Dangbei DBOX02 Pro wins on value. The Dangbei DBOX02 Pro costs $201.01 less ($898.98 vs $1,099.99).
Dangbei DBOX02 Pro
#18 in 4KFull review
An easy smart 4K laser projector for a living room or bedroom that sets itself up and streams Netflix out of the box.
Amazon $898.98$898.98
Prices were last checked October 29, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Dangbei DBOX02 Pro for value ($0.45 per lumen vs $0.61 per lumen).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 4K projector; a clear win is highlighted. How we rank explains each one.
| Factor weight | Nebula Cosmos 4K SE | Dangbei DBOX02 Pro |
|---|---|---|
| Overall rating | 4.2/5 | 4.0/5 |
| Brightness 25% | 62 1,800 ANSI lumens | 67 2,000 ISO lumens |
| Value 15% | 82 $0.61 per lumen | 91 $0.45 per lumen |
| Resolution 10% | 100 4K (pixel shift) | 100 4K (pixel shift) |
| Streaming 15% | 100 Google TV with licensed Netflix | 100 Google TV with licensed Netflix |
| Setup 10% | 60 Autofocus, auto keystone | 60 Autofocus, auto keystone |
| Light life 10% | 100 30,000 hour hybrid laser | 50 light source life not published (neutral score used) |
| Gaming 10% | 74 19 ms input lag | 50 input lag not published (neutral score used) |
| Warranty 5% | 50 warranty not published (neutral score used) | 0 1-year warranty |
Specifications
| Nebula Cosmos 4K SE | Dangbei DBOX02 Pro | |
|---|---|---|
| Picture | ||
| Brightness | 1,800 ANSI | 2,000 ISO |
| Native resolution | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) |
| Picture resolution | 4K (pixel shift from 1920x1080) | 4K (pixel shift from 1920x1080) |
| Display | DLP | DLP |
| Light source | hybrid laser | laser |
| Light source life | 30,000 hours | - |
| HDR | Dolby Vision | HDR10+, HDR10, HLG |
| Color gamut | 123.3% Rec.709 | 108% Rec.709 |
| Placement | ||
| Throw | Standard throw (1.2:1) | Standard throw (1.3:1) |
| Largest image | 200 in | 300 in |
| Autofocus | Yes | Yes |
| Auto keystone | Yes | Yes |
| Obstacle avoidance | Yes | Yes |
| Auto screen fit | Yes | Yes |
| Optical zoom | - | None |
| Streaming and gaming | ||
| Built-in apps | Google TV, licensed Netflix | Google TV, licensed Netflix |
| Input lag | 19 ms | - |
| Top refresh rate | - | 240 Hz |
| HDMI ports | 2 | 2 |
| eARC | Yes | Yes |
| Speakers | 30 W | 24 W |
| Build | ||
| Battery | None | None |
| Fan noise | - | 24 dB |
| Power | - | 110 W |
| Dimensions | 263 x 165 x 265 mm | 10.34 x 8.49 x 9.72 in (W x D x H) |
| Weight | 9.9 lb | 10.6 lb |
| Warranty | - | 1 years |
| Released | 2024-09-05 | 2025-07-01 |