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White rectangular DLP home theater projector with front lens and side vents

ViewSonic

ViewSonic PX749-4K 4000-lumen 4K DLP home theater projector

SKU CH-N80Z-JW1AW MPN PX749-4K

4K DLP projector with 4000 lumens, 1.3x optical zoom and 4.2 ms input lag for gaming up to 300 inches

  • Screen diagonal30 to 300 in / 76.2 to 762.0 cm
  • Image brightness4,000 lumens
  • Power drawMedium Brightness: 310 W Standby Mode (Lamp Off): < 0.5 W
  • Screen ratioNative: 16:9 Supported: 4:3
  • Panel resolution3840 × 2160
  • Lens typeFocus: Manual Optical Zoom: Manual: 1.3x
  • 4K UHD resolution with 3840 x 2160 pixels for sharp detail
  • 4000 ANSI lumens brightness keeps images vivid in lit rooms
  • 2 ms input lag and 240 Hz refresh rate suit fast gaming
  • 3x optical zoom plus vertical and horizontal keystone up to 40°
  • USB-C direct streaming and HDMI 2.0 for flexible connectivity

Product definition

The ViewSonic PX749-4K is a 4000-lumen DLP home theater projector with a native 3840 x 2160 resolution and a 16:9 aspect ratio. It delivers a 30 to 300-inch image size and includes a manual 1.3x optical zoom lens. The unit offers 4.2 ms input latency and a 240 Hz refresh rate for responsive gaming. Connectivity includes two HDMI 2.0 ports, USB-C, RJ45 and RS-232 control.

Who this suits

Buyers who want a bright 4K projector for living-room movies and console gaming with flexible placement will appreciate the 1.13 to 1.47:1 throw ratio and auto keystone correction. The 10 W Harman-tuned speaker covers casual audio needs. Buyers who need motorised lens shift, lens memory or native 21:9 support should look at other models. Installers requiring HDBaseT or 12G-SDI connectivity will not find those interfaces here.

Deciding specification

The two HDMI 2.0 inputs limit 4K signals to 60 Hz, so anyone planning to run 4K at higher frame rates from a PC or next-generation console must verify that this bandwidth meets their needs.

How it compares

Measured against everything we stock in Home Cinema Projectors, at today’s prices. Recalculated every night.

Price $1,150.99
Pricier than about 70% of the 234 comparable items (median $272.99).

Specifications

Product
Brand nameViewSonic
Model namePX749-4K
Case colorWhite
Product typeDLP
Display
Screen diagonal30 to 300 in / 76.2 to 762.0 cm
Image brightness4,000 lumens
Screen ratioNative: 16:9
Supported: 4:3
Panel resolution3840 × 2160
Projection distance29.53 to 384.25 in / 0.75 to 9.76 m
Keystone adjustmentAuto / Manual to Vertical: +/- 40°
Manual to Horizontal: +/- 40°
Projection ratio1.13 to 1.47:1 (100 in Screen Size @ 8.2' / 2.5 m)
Audio & video
Lens typeFocus: Manual
Optical Zoom: Manual: 1.3x
Integrated speakers1 × 10 W
Connectivity
Network connectionRJ45
Ports & slots
Video inputs2 x HDMI 2.0
Audio outputs1 × 1/8 in / 3.5 mm Mini
USB ports1 x USB-C
1 x USB-A (Service)
Power
Power drawMedium Brightness: 310 W
Standby Mode (Lamp Off): < 0.5 W
Power supply100–240 VAC, 50/60 Hz
Size & build
Product dimensions4.3 in × 12.3 in × 8.7 in
Product weight6.6 lb (2.99 kg)
Shipping weight4.12 kg
Package size417 × 320 × 165 mm
Environment & compliance
Temperature rangeOperating Conditions: 32 to 104 °F / 0 to 40 °C
Storage Conditions: -4 to 140 °F / -20 to 60 °C
Humidity limitsup to 90% Humidity

Questions about this item

Do I need a screen or can I project onto a wall?

The PX749-4K produces a 30 to 300 inch image at 4000 lumens; a dedicated screen gives the best contrast but a flat white wall works for casual viewing.

Will my older 1080p Blu-ray player connect to the two HDMI 2.0 ports?

Yes, the HDMI 2.0 inputs are backward compatible so a 1080p source will display correctly, upscaled to the native 3840 x 2160 resolution.

How can I verify the 4.2 ms input lag and 240 Hz refresh rate are active?

Enable the projector's on-screen information display; it shows the current signal resolution, refresh rate and low-latency mode status.

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