BenQ TK700
#15 in 4KFull review
A bright, low-lag lamp projector for gamers who already have a streaming stick or console and want 4K on a budget.
Amazon $1,199$1,199
The BenQ TK700 is the better projector overall, rated 4.1 to 3.9. The BenQ TK700 leads on warranty and setup. The Optoma UHD38x wins on brightness. The Optoma UHD38x costs $200 less ($999 vs $1,199).
Optoma UHD38x
#20 in 4KFull review
A cheap, very bright 4K lamp projector for gamers and sports fans who can add a streaming stick and place it carefully.
Amazon $999$999
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 BenQ TK700 for warranty (3-year warranty vs 1-year warranty) and setup (Auto keystone, 1.3x zoom vs 1.1x zoom).
- Choose the Optoma UHD38x for brightness (4,000 ANSI lumens vs 3,200 ANSI lumens).
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 | BenQ TK700 | Optoma UHD38x |
|---|---|---|
| Overall rating | 4.1/5 | 3.9/5 |
| Brightness 25% | 89 3,200 ANSI lumens | 100 4,000 ANSI lumens |
| Value 15% | 96 $0.38 per lumen | 100 $0.25 per lumen |
| Resolution 10% | 100 4K (pixel shift) | 100 4K (pixel shift) |
| Streaming 15% | 0 no built-in apps; needs a streaming stick | 0 no built-in apps; needs a streaming stick |
| Setup 10% | 50 Auto keystone, 1.3x zoom | 20 1.1x zoom |
| Light life 10% | 69 15,000 hour lamp | 69 15,000 hour lamp |
| Gaming 10% | 100 4.2 ms input lag | 100 4.2 ms input lag |
| Warranty 5% | 100 3-year warranty | 0 1-year warranty |
Independent measurements
BenQ TK700
| Tested by | Brightness | Input lag | Contrast | Conditions |
|---|---|---|---|---|
| ProjectorCentral | 2,818 lm | 6 ms | - | 2,818 ANSI lumens in Bright mode, Normal lamp. Input lag with Fast Mode: 6 ms at 1080p/240, 9 ms at 1080p/120, 18 ms at 4K/60. |
Optoma UHD38x
No independent test published yet.
Specifications
| BenQ TK700 | Optoma UHD38x | |
|---|---|---|
| Picture | ||
| Brightness | 3,200 ANSI | 4,000 ANSI |
| 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 | lamp | lamp |
| Light source life | 15,000 hours | 15,000 hours |
| HDR | HDR10, HLG | HDR10, HLG |
| Color gamut | 96% Rec.709 | - |
| Native contrast | 10,000:1 | - |
| Dynamic contrast | - | 1,000,000:1 |
| Placement | ||
| Throw | Standard throw (1.1:1) | Standard throw (1.5:1) |
| Largest image | 300 in | 300 in |
| Autofocus | No | No |
| Auto keystone | Yes | No |
| Obstacle avoidance | No | No |
| Auto screen fit | No | No |
| Optical zoom | 1.3x | 1.1x |
| Streaming and gaming | ||
| Built-in apps | None | None |
| Input lag | 4.2 ms | 4.2 ms |
| Top refresh rate | 240 Hz | 240 Hz |
| HDMI ports | 2 | 2 |
| eARC | Yes | - |
| Speakers | 5 W | 10 W |
| Build | ||
| Battery | None | None |
| Fan noise | 34 dB | 28 dB |
| Power | 310 W | 305 W |
| Dimensions | 312 x 246 x 110 mm (12.2 x 9.6 x 4.3 in, W x D x H) | 12.4 x 10.63 x 4.65 in (W x D x H) |
| Weight | 6.8 lb | 8.8 lb |
| Warranty | 3 years | 1 years |
| Released | 2022-02 | 2022-12 |