BenQ TK705STi vs Optoma UHZ50
Bold marks the better figure where both are stated to the same standard. “—” means the manufacturer doesn't state it.
 BenQ TK705STiMSRP $1,999 |  Optoma UHZ50MSRP $2,799 | |
|---|---|---|
| Display system | ||
| Imaging technology | DLP | DLP |
| Technology brand | — | DLP |
| Number of imaging devices | — | 1 |
| Chip / panel model | — | 4K UHD HSSI DMD X1, S451 |
| Chip / panel diagonal | 0.47 in | 0.47 in |
| Native aspect ratio | 16:9 | 16:9 |
| Native resolution | — | 1920 × 1080 |
| Pixel shift | — | XPR 4-way |
| Addressable resolution | 3840 × 2160 | 3840 × 2160 |
| Optical system description | — | Blue laser phosphor light engine with a yellow phosphor wheel and a colour wheel |
| Optics | ||
| Throw ratio | 0.8:1 | 1.21–1.59:1 |
| Projection distance table | 50″: 0.89 m · 60″: 1.06 m · 70″: 1.24 m · 80″: 1.42 m · 90″: 1.59 m · 100″: 1.77 m · 110″: 1.95 m · 120″: 2.13 m · 130″: 2.3 m · 140″: 2.48 m · 150″: 2.66 m · 160″: 2.83 m | 40″: 1.07–1.41 m · 60″: 1.61–2.11 m · 70″: 1.88–2.46 m · 80″: 2.14–2.82 m · 90″: 2.41–3.17 m · 100″: 2.68–3.52 m · 120″: 3.21–4.22 m · 150″: 4.02–5.28 m · 180″: 4.82–6.34 m · 200″: 5.36–7.04 m · 250″: 6.7–8.8 m |
| Zoom type | Digital | Optical |
| Zoom ratio | 1× | 1.3× |
| Focus | Auto | Manual |
| Vertical lens shift | — | 0–10% |
| Motorized lens shift | — | No |
| Fixed offset | 100% | 105% |
| Focal length | 8.5 mm | 12.81–16.74 mm |
| F-number | 1.8 | 1.94–2.23 |
| Image size range | 30–300 in | 34.1–302 in |
| Vertical keystone | -30–30° | -30–30° |
| Horizontal keystone | -20–20° | -30–30° |
| Corner / warp correction | — | Warp |
| Light source | ||
| Light source type | LED | Laser (phosphor) |
| Light source detail | 4LED | Laser |
| Light source life | Normal: 20,000 h · Eco: 30,000 h | Rated: 30,000 h |
| Life definition | — | 50% brightness |
| Constant brightness mode | — | Yes |
| Cool-down time | — | 10 s |
| Light-source dimming | Manual steps | Manual steps |
| Brightness | ||
| ANSI lumens | 3,000 lm | — |
| Claimed brightness (non-standard) | — | 3,000 |
| Claimed brightness unit | — | Unspecified |
| Brightness by mode | — | Cinema: 1,194 lm · Hdr sim: 1,684 lm · Game: 1,677 lm · Reference: 1,053 lm · Bright: 2,503 lm · User: 1,909 lmMeasured |
| Brightness uniformity (centre-to-corner) | — | 80% |
| Contrast & black level | ||
| Dynamic contrast | 600,000:1 | 2,500,000:1 |
| Dynamic light control | — | Laser dimming |
| Colour | ||
| Rec.709 gamut | 98% | — |
| Gamut metric | Coverage | — |
| Gamma / EOTF presets | — | 2.2, 2.4, 2.6 |
| Bit depth / 'number of colours' | 30 bit | 10 bit |
| Calibration & picture control | ||
| Colour management system | — | 6-axis |
| Greyscale control points | 11 | — |
| ISF certified | — | Yes |
| HDR | ||
| HDR formats | HDR10, HDR10+, HLG | HDR10, HLG |
| Tone mapping type | — | Adjustable |
| Motion & gaming | ||
| Frame interpolation (MEMC) | Yes | Yes |
| Max refresh rate | — | 1920×1080: 240 Hz · 2560×1440: 120 Hz · 3840×2160: 60 Hz |
| Input lag (rated) | 1920×1080 @ 60 Hz: 5 ms · 3840×2160 @ 60 Hz: 5 ms | 1920×1080 @ 60 Hz: 17 ms · 1920×1080 @ 120 Hz: 8.6 ms · 1920×1080 @ 240 Hz: 4.4 ms · 3840×2160 @ 60 Hz: 16.9 ms |
| Auto low-latency mode | Yes | No |
| Audio | ||
| Speaker power | 16 W | 20 W |
| Speaker count | 2 | 2 |
| Audio channels | — | Stereo |
| DTS | — | Yes |
| Audio outputs | 3.5 mm, HDMI eARC, Bluetooth | 3.5 mm, Optical, HDMI eARC |
| HDMI ARC | Yes | Yes |
| HDMI eARC | Yes | Yes |
| Bluetooth speaker mode | Yes | — |
| Bluetooth audio out | Yes | — |
| Inputs, control & connectivity | ||
| Max input signal | 3840 × 2160 | 4096 × 2160 |
| HDMI port count | 2 | 3 |
| HDMI ports (feature-level) | HDMI-1: HDMI 2.1, HDCP 2.2; HDMI-2: HDMI 2.1, HDCP 2.2 | HDMI 1: HDMI 2.0, HDCP 2.2, eARC (ENHANCED GAMING LOW LATENCY); HDMI 2: HDMI 2.0, HDCP 2.2; HDMI 3: HDMI 2.0, HDCP 2.2 (PUREMOTION) |
| Horizontal scan frequency | 15–102 kHz | 15.38–91.15 kHz |
| Vertical scan frequency | 23–120 Hz | 24–120 Hz |
| USB-C video (DP Alt Mode) | Yes | — |
| USB media playback | Yes | Yes |
| RS-232 | — | Yes |
| LAN control | — | Yes |
| Wired IR input | — | Yes |
| 12 V trigger | Yes | Yes |
| Control ecosystem drivers | — | Alexa, Google Home |
| Wi-Fi | Wi-Fi 6 | Wi-Fi 5 |
| Bluetooth version | 5.2 | — |
| Ethernet | — | Yes |
| Firmware / software | ||
| Smart OS | Google TV | Android (uncertified) |
| OS version | Android 11 | — |
| Netflix | Native | Native |
| Casting | Chromecast built-in | — |
| Storage | — | 16 GB |
| 3D | ||
| 3D support | — | Yes |
| 3D sync method | — | DLP-Link |
| 3D formats | — | Frame packing, Side-by-side, Top-bottom, Frame sequential |
| Setup automation | ||
| Autofocus | When moved | — |
| Auto keystone | Yes | Yes |
| Screen fit / alignment | Yes | — |
| Obstacle avoidance | Yes | — |
| Eye-protection sensor | Yes | — |
| Acoustic noise | ||
| Fan noise (sound pressure) | Normal: 28 dB(A) · Eco: 24 dB(A) | Typical: 27 dB(A) · Max: 29 dB(A) |
| Environment & power | ||
| Operating temperature | 0–40°C | 0–40°C |
| Operating humidity | 10–90%RH | 10–85%RH |
| Altitude / high-altitude mode | 2,000 m | 3,000 m |
| High-altitude mode | Yes | Yes |
| Operating orientations | Table, Ceiling, Rear, Tilt-limited | Table, Ceiling, Rear |
| Rated voltage | 100–240 V | 100–240 V |
| Rated frequency | 50–60 Hz | 50–60 Hz |
| Power consumption (max) | 250 W | 230 W |
| Power consumption by mode | — | Bright 100 pct 110vac: 240 W · Bright 100 pct 220vac: 230 W · Eco 80 pct 110vac: 185 W · Eco 80 pct 220vac: 175 W |
| Standby power | 0.5 W | 0.5 W |
| Networked standby power | 2 W | — |
| Power supply | External brick | — |
| USB-C PD output | 30 W | — |
| Physical & installation | ||
| Width | 229 mm | 337 mm |
| Depth | 250 mm | 265 mm |
| Height | 168 mm | 119 mm |
| Weight | 3.8 kg | 4.8 kg |
| Colours / finishes | — | White |
| Mount hole pattern | Thread: M4 | — |
| Tripod socket | Yes | — |
| Safety & compliance | ||
| Photobiological risk group | — | RG2 |
| Laser product class | — | Class 1 (IEC 60825-1:2014) |
| FDA variance | — | Complies with 21 CFR 1040.10 and 1040.11 as a Risk Group 2 LIP; see Laser Notice No. 57, dated May 8, 2019 |
| Safety & market certifications | — | CE, FCC |
| Support & ownership | ||
| Warranty | 🇺🇸 US 3 yr | — |
| User manual | https://esupportdownload.benq.com/esupport/PROJECTOR%20FOR%20CONSUMER/UserManual/TK705STi/TK705STi_UM_EN_260316112414.pdf | https://region-resource.optoma.com/products/import/Documents/c60e8ce7-6032-45ec-a343-21f52fef801c.pdf |
| In the box | ||
| Box contents | Projector, Remote, Power adapter, Power cord, User documents | Power cord, Remote, Batteries, Quick start guide, Wifi dongle |
| Remote type | Voice | Backlit |