Nebula X1S
#5 in 4KFull review
A very bright, easy to set up 4K laser projector with built-in Netflix for living rooms that cannot be fully darkened.
Amazon $2,799$2,799
The Nebula X1S rates 4.6 among 4K projectors; the XuanPad RD-711 VIDAA rates 3.1 among under 1080p ones. The XuanPad RD-711 VIDAA costs $2,229.01 less ($569.99 vs $2,799).
XuanPad RD-711 VIDAA
#17 in Under 1080pFull review
A VIDAA projector with automatic setup and big speakers for a living room. Its 6000 ANSI and 4K claims are unverified, so compare it with tested models first.
Amazon $569.99$569.99
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.
Scores side by side
These two sit in different type classes (4K and under 1080p), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | Nebula X1S | XuanPad RD-711 VIDAA |
|---|---|---|
| Overall rating | 4.6/5 | 3.1/5 |
| Brightness 25% | 100 6,000 ANSI lumens | 0 listed 6,000 lumens rating not credible |
| Value 15% | 90 $0.47 per lumen | 50 no rated brightness (neutral score used) |
| Resolution 10% | 100 4K (pixel shift) | 50 native resolution not published (neutral score used) |
| Streaming 15% | 100 Google TV with licensed Netflix | 100 VIDAA with licensed Netflix |
| Setup 10% | 80 Autofocus, auto keystone, 1.7x zoom | 60 Autofocus, auto keystone |
| Light life 10% | 100 30,000 hour RGB laser | 50 light source life not published (neutral score used) |
| Gaming 10% | 50 input lag not published (neutral score used) | 50 input lag not published (neutral score used) |
| Warranty 5% | 50 2-year warranty | 50 2-year warranty |
Independent measurements
Nebula X1S
| Tested by | Brightness | Input lag | Contrast | Conditions |
|---|---|---|---|---|
| ProjectorReviews | 5,886 lm | 19 ms | 5,000:1 | Conference mode 5,886 lm; Standard 2,922; NebulaMaster 2,748. Lag about 19 ms at 4K/60 in Game mode. Native contrast about 5,000:1 with iris at minimum. |
XuanPad RD-711 VIDAA
No independent test published yet.
Specifications
| Nebula X1S | XuanPad RD-711 VIDAA | |
|---|---|---|
| Picture | ||
| Brightness | 6,000 ANSI | 6,000 ANSI (listed, not credible) |
| Native resolution | 1920 x 1080 (1080p) | - |
| Picture resolution | 4K (pixel shift from 1920x1080) | - |
| Display | DLP | - |
| Light source | RGB laser | - |
| Light source life | 30,000 hours | - |
| HDR | Dolby Vision | - |
| Color gamut | 106% Rec.2020 | - |
| Native contrast | 5,000:1 | - |
| Dynamic contrast | 56,000:1 | - |
| Placement | ||
| Throw | Standard throw (0.9:1) | Standard throw |
| Largest image | 300 in | - |
| Autofocus | Yes | Yes |
| Auto keystone | Yes | Yes |
| Obstacle avoidance | Yes | Yes |
| Auto screen fit | Yes | Yes |
| Optical zoom | 1.7x | None |
| Streaming and gaming | ||
| Built-in apps | Google TV, licensed Netflix | VIDAA, licensed Netflix |
| Top refresh rate | 60 Hz | - |
| HDMI ports | 2 | - |
| eARC | Yes | No |
| Speakers | 40 W | 42 W |
| Build | ||
| Battery | None | None |
| Fan noise | 28 dB | - |
| Power | 240 W | - |
| Dimensions | 7.3 x 11.1 x 9.7 in | 9.3 x 6.6 x 8.3 in |
| Weight | 13.7 lb | 5.7 lb |
| Warranty | 2 years | 2 years |
| Released | 2026-08-26 | - |