ViewSonic PX749-4K

MSRP$1,199.99

ViewSonic PX749-4K white projector, front left three-quarter view with 4K HDR lens cap

Brand	ViewSonic · Home Entertainment
Type	Gaming
Released	December 2023
Resolution	4K UHD
HDR formats	HDR10, HLG
Imaging technology	DLP
Light source type	Lamp
ANSI lumens	4,000 lm
Throw ratio	1.13–1.47:1
Input lag (rated)	1920×1080 @ 240 Hz: 4.2 ms

A single-chip DLP lamp projector with a 0.47-inch 4K-UHD chip, rated 4,000 ANSI lumens and a 1.3x manual zoom lens. It is marketed as Designed for Xbox, with a 4.2 ms input lag at 1080p 240 Hz, two HDMI 2.0 inputs, USB-C video input and a 10 W speaker.

Data sheet

Picture

Imaging technology	DLP
Technology brand	DLP
Number of imaging devices	1
Chip / panel diagonal	0.47 in
Native aspect ratio	16:9
Addressable resolution	3840 × 2160
Dynamic contrast	12,000:1
Colour temperature presets	D65, Custom
Gamma / EOTF presets	2.2
Bit depth / 'number of colours'	10 bit
HDR formats	HDR10, HLG
Tone mapping type	Adjustable
Max refresh rate	1920×1080: 240 Hz · 3840×2160: 60 Hz
Input lag (rated)	1920×1080 @ 240 Hz: 4.2 ms
3D support	Yes
3D formats	Frame sequential, Frame packing

Optics

Throw ratio	1.13–1.47:1
Projection distance table	60″: 1.5–1.95 m · 70″: 1.75–2.27 m · 80″: 2–2.59 m · 90″: 2.25–2.92 m · 100″: 2.49–3.24 m · 110″: 2.74–3.57 m · 120″: 2.99–3.89 m · 130″: 3.24–4.22 m · 140″: 3.49–4.54 m · 150″: 3.74–4.86 m · 160″: 3.99–5.19 m · 170″: 4.24–5.51 m · 180″: 4.49–5.84 m · 190″: 4.74–6.16 m · 200″: 4.99–6.49 m
Zoom type	Optical
Zoom ratio	1.3×
Focus	Manual
Vertical lens shift	0%
Horizontal lens shift	0%
Fixed offset	10%
Focal length	12–15.6 mm
F-number	1.94–2.12
Image size range	30–300 in
Vertical keystone	-40–40°
Horizontal keystone	-40–40°
Corner / warp correction	4pt

Light source

Light source type	Lamp
Light source detail	240W UHP lamp (E20.7i); replacement RLC-127
Lamp wattage	240 W
Light source life	Normal: 4,000 h · Super eco: 20,000 h
Light-source dimming	Manual steps
ANSI lumens	4,000 lm ANSI	ANSI

Audio

Speaker power	10 W
Audio channels	Mono
Audio partner	Harman
Audio outputs	3.5 mm

Inputs, control & connectivity

Max input signal	3840 × 2160
HDMI port count	2
HDMI ports (feature-level)	HDMI 1: HDMI 2.0, HDCP 2.2; HDMI 2: HDMI 2.0, HDCP 2.2
Horizontal scan frequency	15–135 kHz
Vertical scan frequency	23–240 Hz
USB-C video (DP Alt Mode)	Yes
RS-232	Yes
LAN control	Yes
12 V trigger	Yes
Ethernet	Yes
Auto keystone	Yes

Environment & power

Operating temperature	0–40°C
Operating humidity	0–90%RH
Altitude / high-altitude mode	3,000 m
High-altitude mode	Yes
Operating orientations	Table, Ceiling, Rear
Rated voltage	100–240 V
Rated frequency	50–60 Hz
Power consumption by mode	Normal: 310 W
Standby power	0.5 W
Fan noise (sound pressure)	Normal: 33 dB(A) · Eco: 28 dB(A)

Physical & installation

Width	312 mm
Depth	222 mm
Height	108 mm
Weight	3 kg
Mount hole pattern	Thread: M4 · Max screw length mm: 8

Support & ownership

Warranty	🇺🇸 US 3 yr The manual gives North and South America 3 years on parts and labor and 1 year on the original lamp, cut to 1 year (90 days on the lamp) for heavy use above 14 hours average daily. The global page says other regions vary ('Warranty Card: Yes (CN Only)').
Light-source warranty	1 year on the original lamp (North and South America; 90 days under heavy use of more than 14 hours daily)
User manual	https://www.viewsonicglobal.com/public/products_download/user_guide/projector/PX749-4K/PX749-4K_UG_ENG.pdf
Photobiological risk group	RG2
Safety & market certifications	CE, FCC

In the box

Box contents	Projector, Power cord, Remote, Quick start guide
Remote type	Backlit

Tools

Throw calculator — How far from the screen the PX749-4K needs to sit for a given image size, set to its 1.13–1.47:1 lens.
Download spec as CSV — Every value on this data sheet with its unit and source, one row per spec.
Download spec as JSON — The same data from the open data API, with variants and identifiers.