BenQ TK700ST vs Optoma GT3900UHD
BenQ TK700ST is $100 cheaper. Optoma GT3900UHD is lighter.
BenQ TK700ST$1,399 · Amazon Buy | Optoma GT3900UHD$1,499 · Amazon Buy |
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| Key differences | ||
|---|---|---|
| White light output | ||
| White light output | 3,000 lm ANSI | 4,000 lm ISO |
| Throw ratio | ||
| Throw ratio | 0.9–1.08:1 | 0.5:1 |
| Lowest input lag | ||
| Lowest input lag | 4.2 msDerived | 4.3 msDerived |
| Light source | ||
| Light source | Lamp | Laser (phosphor) |
| Fan noise | ||
| Fan noise | Normal 34 dB(A) · Eco 28 dB(A) | Normal 35 dB(A) · Eco 28 dB(A) |
| MSRP | ||
| MSRP | $1,799 | $1,899 |
| Best price | ||
| Best price | $1,399 | $1,499 |
| Room fit | ||
| Distance to screen | ||
| Distance to screen | 2.0–2.4 m | 1.1 m |
| Picture | ||
| White light output | ||
| White light output | 3,000 lm ANSI | 4,000 lm ISO |
| Brightness uniformity | ||
| Brightness uniformity | — | 75% |
| Imaging technology | ||
| Imaging technology | DLP | DLP |
| Native aspect | ||
| Native aspect | 16:9Derived | 16:9Derived |
| Addressable resolution | ||
| Addressable resolution | 4K UHD (3840 × 2160) | 4K UHD (3840 × 2160) |
| Dynamic contrast | ||
| Dynamic contrast | 10,000:1 | 2,000,000:1 |
| Dynamic contrast method | ||
| Dynamic contrast method | Light-source dimming | — |
| Colour gamut | ||
| Colour gamut | Rec. 709 96% coverage | — |
| Colour bit depth (per channel) | ||
| Colour bit depth (per channel) | 10 bit | — |
| Gamma / EOTF presets | ||
| Gamma / EOTF presets | 2.2, 2.4, 2.6 | 2.2, 2.4 |
| Colour temperature presets | ||
| Colour temperature presets | Native | — |
| HDR formats | ||
| HDR formats | HDR10, HLG | HDR10, HLG |
| Colour management (CMS) | ||
| Colour management (CMS) | 6-axis | 6-axis |
| Picture certifications | ||
| Picture certifications | — | ISF |
| 3D | ||
| 3D | Yes | Yes |
| 3D formats | ||
| 3D formats | Frame packing, Side-by-side, Top-bottom, Frame sequential | Frame packing, Side-by-side, Top-bottom, Frame sequential |
| 3D glasses sync | ||
| 3D glasses sync | — | DLP-Link |
| Light source | ||
| Light source | ||
| Light source | Lamp | Laser (phosphor) |
| Emitter | ||
| Emitter | — | Blue laser + phosphor |
| Light engine | ||
| Light engine | — | DuraCore |
| Lamp power | ||
| Lamp power | 240 W | — |
| Light-source life | ||
| Light-source life | 4,000 h normal · 10,000 h eco · 15,000 h super eco · 8,000 h dynamic | 30,000 h eco |
| Light output control | ||
| Light output control | — | Steps |
| Constant brightness mode | ||
| Constant brightness mode | — | Yes |
| Warm-up time | ||
| Warm-up time | 30 s | 10 s |
| Cool-down time | ||
| Cool-down time | 90 s | 10 s |
| Optics | ||
| Throw ratio | ||
| Throw ratio | 0.9–1.08:1 | 0.5:1 |
| Image size | ||
| Image size | — | 30–150 in |
| Projection offset | ||
| Projection offset | 110% | 114% |
| Zoom | ||
| Zoom | Optical | None |
| Zoom ratio | ||
| Zoom ratio | 1.2×Derived | — |
| Focal length | ||
| Focal length | 9.25–11.1 mm | 7.51 mm |
| Aperture (f-number) | ||
| Aperture (f-number) | 1.94–2.05 | 2.8 |
| Focus | ||
| Focus | Manual | Manual |
| Autofocus | ||
| Autofocus | No | No |
| Vertical lens shift | ||
| Vertical lens shift | — | None |
| Horizontal lens shift | ||
| Horizontal lens shift | — | None |
| Vertical keystone | ||
| Vertical keystone | 30° | 15° |
| Horizontal keystone | ||
| Horizontal keystone | 30° | 15° |
| Auto keystone | ||
| Auto keystone | Yes | — |
| Grid warp | ||
| Grid warp | — | Yes |
| Motion & gaming | ||
| Max input refresh | ||
| Max input refresh | 1080p: 240 Hz · 4K UHD: 60 Hz | 1080p: 240 Hz · 4K UHD: 60 Hz |
| Input lag | ||
| Input lag | 1080p: 60 Hz 16.7 ms · 120 Hz 8.3 ms · 240 Hz 4.2 ms · 4K UHD: 60 Hz 16.7 ms | 1080p: 60 Hz 16.7 ms · 120 Hz 8.6 ms · 240 Hz 4.3 ms · 4K UHD: 60 Hz 16.7 ms |
| Inputs & control | ||
| HDMI inputs | ||
| HDMI inputs | 2 × HDMI 2.0 (HDCP 2.2) | HDMI 2.0 · HDMI 2.0 (eARC) |
| Max input resolution | ||
| Max input resolution | 4K UHD | 4K UHD |
| Control ports | ||
| Control ports | RS-232, Wired IR | RS-232, 12 V trigger |
| PJLink | ||
| PJLink | — | Class 1 |
| Control-system drivers | ||
| Control-system drivers | — | Crestron |
| Horizontal scan | ||
| Horizontal scan | 15–135 kHz | 15–150 kHz |
| Vertical scan | ||
| Vertical scan | 23–120 Hz | 24–240 Hz |
| Smart platform | ||
| Ethernet | ||
| Ethernet | — | Yes |
| Audio | ||
| Speaker power | ||
| Speaker power | 5 W | 15 W |
| Speakers | ||
| Speakers | 1 | 1 |
| Layout | ||
| Layout | Mono | Mono |
| Tuned by | ||
| Tuned by | treVolo, Bongiovi DPS | — |
| Audio formats | ||
| Audio formats | Dolby Atmos | — |
| Audio outputs | ||
| Audio outputs | 3.5 mm, HDMI eARC | 3.5 mm, HDMI eARC |
| HDMI audio return | ||
| HDMI audio return | eARCDerived | eARCDerived |
| Physical & installation | ||
| Dimensions (W × D × H) | ||
| Dimensions (W × D × H) | 312 × 246 × 110 mm | 274 × 216 × 114 mm |
| Weight | ||
| Weight | 3,100 g | 2,900 g |
| Colours | ||
| Colours | — | Black |
| Orientations | ||
| Orientations | Table, Ceiling, Rear | Table, Ceiling, Rear, Portrait, 360° |
| Ceiling mount | ||
| Ceiling mount | M4 | — |
| Ingress protection | ||
| Ingress protection | — | IP6X |
| Environment & power | ||
| Operating temperature | ||
| Operating temperature | 0–40°C | 0–40°C |
| Operating humidity | ||
| Operating humidity | 10–90%RH | 10–85%RH |
| Altitude | ||
| Altitude | 3,000 m · high-altitude mode | 2,500 m · high-altitude mode |
| Power draw | ||
| Power draw | Max 380 W · Normal 305 W | Max 178 W · Normal 178 W · Eco 125 W |
| Standby | ||
| Standby | Up to 0.5 W | Up to 0.5 W |
| Power supply | ||
| Power supply | — | External adapter |
| Mains input | ||
| Mains input | 100–240 V · 50/60 Hz | 100–240 V · 50/60 Hz |
| Fan noise | ||
| Fan noise | Normal 34 dB(A) · Eco 28 dB(A) | Normal 35 dB(A) · Eco 28 dB(A) |
| Safety & support | ||
| Laser class | ||
| Laser class | — | Class 1 |
| Risk group | ||
| Risk group | RG2 | RG2 |
| Hazard distance | ||
| Hazard distance | — | 1 m |
| Marks | ||
| Marks | — | CE, FCC |
| Warranty | ||
| Warranty | 3 yr | 5 yr or 12,000 h |
| User manual | ||
| User manual | https://esupportdownload.benq.com/esupport/PROJECTOR%20FOR%20CONSUMER/UserManual/TK700ST/TK700ST_UM_ES_240719113010.pdf | https://region-resource.optoma.com/products/documents/CWqYJUpb2tPRrTwMj1QGYRcPXH2q7xeKXHsKXAZ4.pdf |
| In the box | ||
| In the box | ||
| In the box | Power cord, Remote, Remote batteries, Quick start guide, User manual, Warranty card | Power cord, Power adapter, Remote, Remote batteries, Quick start guide, Warranty card |
| Remote | ||
| Remote | IR | IR |
BenQ TK700ST$1,399 · Amazon
Buy
Optoma GT3900UHD$1,499 · Amazon
Buy