A bright, simple ultra short throw TV replacement for living rooms, best for buyers who stream with a separate Netflix device or do not need Netflix.
Epson $1,799.99The Epson EpiqVision Ultra LS650 rates 4.1 among ultra short throw projectors; the Optoma UHD35STx rates 3.8 among 4K ones. The Optoma UHD35STx costs $500.99 less ($1,299 vs $1,799.99).

A short throw 4K gaming projector for small rooms where the projector has to sit close to the screen.
Amazon $1,299Prices 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 (ultra short throw and 4K), 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 | Epson EpiqVision Ultra LS650 | Optoma UHD35STx |
|---|---|---|
| Overall rating | 4.1/5 | 3.8/5 |
| Brightness 25% | 92 3,600 ISO 21118 lumens | 95 3,600 ANSI lumens |
| Value 15% | 100 $0.50 per lumen | 96 $0.36 per lumen |
| Resolution 10% | 100 4K (pixel shift) | 100 4K (pixel shift) |
| Streaming 15% | 50 Android TV, no licensed Netflix | 0 no built-in apps; needs a streaming stick |
| Setup 10% | 0 Manual focus and keystone | 0 Manual focus and keystone |
| Light life 10% | 100 20,000 hour laser | 69 15,000 hour lamp |
| Gaming 10% | 71 20 ms input lag | 100 4 ms input lag |
| Warranty 5% | 50 2-year warranty | 0 1-year warranty |
Independent measurements
Epson EpiqVision Ultra LS650
| Tested by | Brightness | Input lag | Contrast | Conditions |
|---|---|---|---|---|
| Projector Central | 3,485 lm | 24 ms | - | Dynamic mode 3,485 lm; Cinema 2,474 lm. Input lag 24 ms at 1080p/60 and 2160p/60 with Enhanced Gaming. |
Optoma UHD35STx
No independent test published yet.
Specifications
| Epson EpiqVision Ultra LS650 | Optoma UHD35STx | |
|---|---|---|
| Picture | ||
| Brightness | 3,600 ISO 21118 | 3,600 ANSI |
| Native resolution | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) |
| Picture resolution | 4K (pixel shift from 1920x1080) | 4K (pixel shift from 1920x1080) |
| Display | 3LCD | DLP |
| Light source | laser | lamp |
| Light source life | 20,000 hours | 15,000 hours |
| HDR | HDR10, HLG | HDR10, HLG |
| Dynamic contrast | - | 1,000,000:1 |
| Placement | ||
| Throw | Ultra short throw (0.3:1) | Short throw (0.5:1) |
| Largest image | 120 in | 300 in |
| Autofocus | No | No |
| Auto keystone | - | No |
| Obstacle avoidance | - | No |
| Auto screen fit | - | No |
| Optical zoom | None | None |
| Streaming and gaming | ||
| Built-in apps | Android TV, no licensed Netflix | None |
| Input lag | 20 ms | 4 ms |
| Top refresh rate | 60 Hz | 240 Hz |
| HDMI ports | 2 | 2 |
| eARC | Yes | - |
| Speakers | 20 W | 10 W |
| Build | ||
| Battery | None | None |
| Fan noise | 36 dB | 28 dB |
| Power | 278 W | 320 W |
| Dimensions | 18.4 x 15.7 x 6.2 in | 12.4 x 10.63 x 4.65 in (W x D x H) |
| Weight | 16.3 lb | 7.7 lb |
| Warranty | 2 years | 1 years |
| Released | 2023-11 | 2022-09 |