BenQ HT3550i vs Dangbei DBOX02 Pro
 MSRP $1,799 |  Dangbei DBOX02 Pro$898.98 | |
|---|---|---|
| Key differences | ||
| White light output | 2,000 lm ANSI | 2,000 lm ISO |
| Native resolution | 1080p (1920 × 1080) | — |
| Throw ratio | 1.13–1.47:1 | 1.27:1 |
| Lowest input lag | 83.34 msDerived | — |
| HDR formats | HDR10, HLG | HDR10, + HDR10+, HLG |
| Light source | Lamp | Laser (phosphor) |
| Fan noise | Normal 30 dB(A) · Eco 28 dB(A) | Up to 24 dB(A) |
| Price | MSRP $1,799 | $898.98 |
| Room fit | ||
| Distance to screen | 2.5–3.3 m | 2.8 m |
| Brightness | ||
| Rated brightness | 2,000 lmDerived | 2,000 lmDerived |
| White light output | 2,000 lm ANSI | 2,000 lm ISO |
| Display system | ||
| Imaging technology | DLP | DLP |
| Chip / panel diagonal | 0.47 in | 0.47 in |
| On-screen resolution | 4K UHD (3840 × 2160)Derived | 4K UHD (3840 × 2160)Derived |
| Native resolution | 1080p (1920 × 1080) | — |
| Native aspect | 16:9Derived | 16:9Derived |
| Pixel shift | XPR 4-way | — |
| Addressable resolution | 4K UHD (3840 × 2160) | 4K UHD (3840 × 2160) |
| Colour wheel segments | 6 | — |
| Contrast | ||
| Dynamic contrast | 30,000:1 | — |
| Dynamic contrast method | Dynamic iris | — |
| Colour | ||
| Colour gamut | Rec. 709 100% coverage · DCI-P3 95% coverage | Rec. 709 108% area |
| Colour bit depth (per channel) | 10 bit | 8 bit |
| Gamma / EOTF presets | 2.2, 2.4, 2.6 | — |
| Colour temperature presets | Native, Custom | — |
| HDR | ||
| HDR formats | HDR10, HLG | HDR10, + HDR10+, HLG |
| Tone mapping (maker name) | HDR-PRO | — |
| Calibration | ||
| Colour management (CMS) | 6-axis | — |
| Picture mode memories | 1 | — |
| Picture certifications | ISF | — |
| 3D | ||
| 3D | Yes | Yes |
| 3D formats | — | Side-by-side, Top-bottom |
| Light source | ||
| Light source | Lamp | Laser (phosphor) |
| Emitter | — | Blue + red laser |
| Light engine | — | LaserVibe |
| Lamp power | 245 W | — |
| Replacement lamp | 5J.JKC05.001 | — |
| Laser wavelengths | — | R 640 · G 530 · B 460 nm |
| Light-source life | 4,000 h normal · 10,000 h eco · 15,000 h super eco | — |
| Warm-up time | 30 s | — |
| Cool-down time | 90 s | — |
| Optics | ||
| Throw ratio | 1.13–1.47:1 | 1.27:1 |
| Image size | 40–200 in | 40–300 in |
| Projection offset | 100% | — |
| Zoom | Optical | Digital |
| Zoom ratio | 1.3×Derived | — |
| Focal length | 12–15.6 mm | — |
| Aperture (f-number) | 1.9–2.47 | — |
| Focus | Manual | Motorised |
| Autofocus | — | Yes |
| Vertical lens shift | 0–10% | None |
| Horizontal lens shift | — | None |
| Vertical keystone | 30° | — |
| Auto keystone | Yes | Yes |
| Corner correction | — | 4-corner |
| Auto setup | — | Fit to screen, Obstacle avoidance |
| Motion & gaming | ||
| Frame interpolation (MEMC) | Yes | Yes |
| Max input refresh | — | 1080p: 240 Hz |
| Max refresh at 1080p | — | 240 HzDerived |
| Input lag | 1080p: 60 Hz 83.3 ms · 4K UHD: 60 Hz 83.3 ms | — |
| Lowest input lag | 83.34 msDerived | — |
| Input lag at 4K 60 Hz | 83.34 msDerived | — |
| Inputs & control | ||
| HDMI inputs | HDMI 2.0 (ARC, HDCP 2.2) · HDMI 2.0 (HDCP 2.2) · HDMI 2.0 (HDCP 2.2, internal) | HDMI 2.1 (eARC) · HDMI 2.1 |
| HDMI inputs (count) | 2Derived | 2Derived |
| Newest HDMI version | HDMI 2.0Derived | HDMI 2.1Derived |
| Max input resolution | 4K UHD | 4K UHD |
| USB media playback | Yes | Yes |
| Control ports | RS-232, 12 V trigger | — |
| Horizontal scan | 15–135 kHz | — |
| Vertical scan | 23–120 Hz | — |
| Smart platform | ||
| Wi-Fi | Wi-Fi 5 | Wi-Fi 6 |
| Bluetooth | 4.2 | 5.2 |
| Ethernet | — | Yes |
| Smart platform | Android TV | Google TV |
| Chipset | Amlogic S905Y2 | — |
| RAM | 2 GB | 2 GB |
| Storage | 16 GB | 32 GB |
| Netflix | No | Built in |
| Casting | — | Chromecast built-in |
| Audio | ||
| Speaker power | 10 W | 24 W |
| Speakers | 2 | 2 |
| Tuned by | Waves MaxxAudio | — |
| Audio formats | — | DTS |
| Audio outputs | 3.5 mm, + Optical, + HDMI ARC | 3.5 mm, + HDMI eARC, + Bluetooth |
| HDMI audio return | ARCDerived | eARCDerived |
| Bluetooth speaker mode | — | Yes |
| Physical & installation | ||
| Dimensions (W × D × H) | 380 × 263 × 127 mm | 263 × 216 × 247 mm |
| Weight | 4,200 g | 4,800 g |
| Colours | — | Grey |
| Orientations | Table, Ceiling, Rear | — |
| Built-in stand | — | Gimbal, 120° tilt, 360° pan |
| Ceiling mount | M4, 20–25 mm screws | — |
| Environment & power | ||
| Operating temperature | 0–40°C | 0–40°C |
| Operating humidity | 10–90%RH | — |
| Altitude | 3,000 m · high-altitude mode | — |
| Power draw | Max 350 W · Normal 340 W · Eco 280 W | Max 110 W |
| Standby | Up to 0.5 W | Up to 0.5 W |
| Networked standby | — | Up to 2 W |
| Power supply | — | External adapter |
| Mains input | 100–240 V · 50/60 Hz | 100–240 V |
| Noise | ||
| Fan noise | Normal 30 dB(A) · Eco 28 dB(A) | Up to 24 dB(A) |
| Safety & compliance | ||
| Laser class | — | Class 1 |
| Risk group | — | RG2 |
| Eye-protection sensor | — | Yes |
| Marks | — | CE, UKCA, FCC |
| Support & ownership | ||
| Warranty | 3 yr (light source 1 yr or 2,000 h) | 1 yr |
| User manual | https://esupportdownload.benq.com/esupport/PROJECTOR/UserManual/HT3550i/HT3550i_UM_EN_201224092509.pdf | https://cdn.shopify.com/s/files/1/0582/1127/0815/files/DBOX02Pro_20250630.pdf |
| Spare parts | Lamp 5J.JKC05.001 · Mount CMG3 | — |
| In the box | ||
| In the box | Power cord, Remote, Remote batteries, + Quick start guide, + Warranty card, + Streaming dongle | Power cord, + Power adapter, Remote, Remote batteries, + User manual |
| Remote | IR · Bluetooth · voice | Bluetooth |