BenQ TK705i
#2 in 4KFull review
A smart LED 4K projector for a living room that doubles as a console gaming screen, with three-year coverage and no lamp to replace.
Amazon $1,599$1,599
The BenQ TK705i is the better projector overall, rated 4.7 to 3.5. The BenQ TK705i leads on streaming, light life and setup. The BenQ TK705i costs $30.99 less ($1,599 vs $1,629.99).
Epson Home Cinema 3800
#23 in 4KFull review
A bright 3LCD home theater projector with flexible placement, for movie rooms more than fast gaming.
Amazon $1,629.99$1,629.99
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.
Which should you buy?
- Choose the BenQ TK705i for streaming (Google TV with licensed Netflix vs no built-in apps; needs a streaming stick), light life (30,000 hour LED vs 5,000 hour lamp) and setup (Autofocus, auto keystone, 1.3x zoom vs 1.6x zoom, lens shift).
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 TK705i | Epson Home Cinema 3800 |
|---|---|---|
| Overall rating | 4.7/5 | 3.5/5 |
| Brightness 25% | 86 3,000 ANSI lumens | 86 3,000 ISO 21118 lumens |
| Value 15% | 86 $0.53 per lumen | 86 $0.54 per lumen |
| Resolution 10% | 100 4K (pixel shift) | 100 4K (pixel shift) |
| Streaming 15% | 100 Google TV with licensed Netflix | 0 no built-in apps; needs a streaming stick |
| Setup 10% | 80 Autofocus, auto keystone, 1.3x zoom | 40 1.6x zoom, lens shift |
| Light life 10% | 100 30,000 hour LED | 6 5,000 hour lamp |
| Gaming 10% | 100 5 ms input lag | 50 input lag not published (neutral score used) |
| Warranty 5% | 100 3-year warranty | 50 2-year warranty |
Independent measurements
BenQ TK705i
No independent test published yet.
Epson Home Cinema 3800
| Tested by | Brightness | Input lag | Contrast | Conditions |
|---|---|---|---|---|
| ProjectorCentral | 2,912 lm | 20.6 ms | - | 2,912 ANSI lumens in Dynamic mode, High power (1,615 Natural Eco, 1,204 Cinema Eco). Lag 20.6 ms at 4K, 28 ms at 1080p. |
Specifications
| BenQ TK705i | Epson Home Cinema 3800 | |
|---|---|---|
| Picture | ||
| Brightness | 3,000 ANSI | 3,000 ISO 21118 |
| Native resolution | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) |
| Picture resolution | 4K (pixel shift from 1920x1080) | 4K (pixel shift from 1920x1080) |
| Display | DLP | 3LCD |
| Light source | LED | lamp |
| Light source life | 30,000 hours | 5,000 hours |
| HDR | HDR10, HDR10+, HLG | HDR10, HLG |
| Color gamut | 98% Rec.709 | - |
| Dynamic contrast | 600,000:1 | 100,000:1 |
| Placement | ||
| Throw | Standard throw (1:1) | Standard throw (1.3:1) |
| Largest image | 150 in | 300 in |
| Autofocus | Yes | No |
| Auto keystone | Yes | No |
| Obstacle avoidance | - | No |
| Auto screen fit | Yes | No |
| Optical zoom | 1.3x | 1.6x |
| Lens shift | - | Horizontal and vertical |
| Streaming and gaming | ||
| Built-in apps | Google TV, licensed Netflix | None |
| Input lag | 5 ms | - |
| Top refresh rate | 60 Hz | 60 Hz |
| HDMI ports | 2 | 2 |
| eARC | Yes | - |
| Speakers | 16 W | 20 W |
| Build | ||
| Battery | None | None |
| Fan noise | 26 dB | 35 dB |
| Power | 250 W | 406 W |
| Dimensions | 229 x 250 x 168 mm (9.02 x 9.83 x 6.62 in, W x D x H) | 16.1 x 13.0 x 6.5 in (W x D x H) |
| Weight | 8.4 lb | 15.2 lb |
| Warranty | 3 years | 2 years |
| Released | 2025-10 | 2019-10 |