ProjectorDB

Optoma UHD35x vs ViewSonic PX749-4K

Optoma UHD35x is quieter. ViewSonic PX749-4K is $329.88 cheaper, brighter and lighter.

Optoma UHD35xMSRP $1,499
ViewSonic PX749-4K$1,169.12 · Amazon
Buy
Key differences
White light outputANSI
3,600 lm ANSI4,000 lm ANSI
Native resolution
1080p (1920 × 1080)—
Throw ratio
1.5–1.66:11.13–1.47:1
Fan noise
Max 28 dB(A) · Normal 26 dB(A)Normal 33 dB(A) · Eco 28 dB(A)
MSRP
$1,499$1,199.99
Best price
—$1,169.12
Room fit
Distance to screen
3.3–3.7 m2.5–3.3 m
Picture
White light outputANSI
3,600 lm ANSI4,000 lm ANSI
Brightness uniformity
80%—
Imaging technology
DLPDLP
Chip / panel diagonal
0.47 in0.47 in
Native resolution
1080p (1920 × 1080)—
Native aspect
16:9Derived16:9Derived
Addressable resolution
4K UHD (3840 × 2160)4K UHD (3840 × 2160)
Colour wheel segments
8—
Dynamic contrast
1,000,000:112,000:1
Colour bit depth (per channel)
—10 bit
Gamma / EOTF presets
—2.2
Colour temperature presets
—D65, Custom
HDR formats
HDR10, HLGHDR10, HLG
Tone mapping
—Adjustable
Picture certifications
ISF—
3D
YesYes
3D formats
Frame packing, Frame sequentialFrame packing, Frame sequential
3D glasses sync
DLP-Link—
Light source
Light source
LampLamp
Lamp power
240 W240 W
Replacement lamp
BL-FU240ERLC-127
Light-source life
4,000 h max · 10,000 h eco · 15,000 h dynamic4,000 h normal · 20,000 h super eco
Light output control
—Steps
Optics
Throw ratio
1.5–1.66:11.13–1.47:1
Image size
33–300 in30–300 in
Projection offset
105%110%
Zoom
OpticalOptical
Zoom ratio
1.11×Derived1.3×Derived
Focal length
15.84–17.42 mm12–15.6 mm
Aperture (f-number)
1.98–2.021.94–2.12
Focus
ManualManual
Autofocus
—No
Vertical lens shift
NoneNone
Horizontal lens shift
—None
Vertical keystone
40°40°
Horizontal keystone
40°40°
Auto keystone
—Yes
Corner correction
4-corner4-corner
Motion & gaming
Max input refresh
1080p: 240 Hz · 4K UHD: 60 Hz1080p: 240 Hz · 4K UHD: 60 Hz
Input lag
1080p: 60 Hz 16.7 ms · 120 Hz 8.9 ms · 240 Hz 4.2 ms · 4K UHD: 60 Hz 16.7 ms1080p: 240 Hz 4.2 ms
Inputs & control
HDMI inputs
2 × HDMI 2.0 (HDCP 2.2)2 × HDMI 2.0 (HDCP 2.2)
Other video inputs
—USB-C (DisplayPort)
Max input resolution
4K UHD4K UHD
Control ports
RS-232, 12 V triggerRS-232, 12 V trigger
Horizontal scan
31–135 kHz15–135 kHz
Vertical scan
24–120 Hz23–240 Hz
Smart platform
Ethernet
—Yes
Audio
Speaker power
10 W10 W
Speakers
1—
Layout
—Mono
Tuned by
—Harman Kardon
Audio outputs
3.5 mm, Optical3.5 mm
HDMI audio return
NoneDerivedNoneDerived
Physical & installation
Dimensions (W × D × H)
315 × 270 × 118 mm312 × 222 × 108 mm
Weight
3,980 g3,000 g
Colours
White—
Orientations
Table, Ceiling, RearTable, Ceiling, Rear
Ceiling mount
—M4, screws ≤ 8 mm
Environment & power
Operating temperature
5–40°C0–40°C
Operating humidity
10–85%RH0–90%RH
Altitude
3,000 m3,000 m · high-altitude mode
Power draw
Max 305 W · Eco 220 W310 W
Standby
0.5 WUp to 0.5 W
Power supply
Built in—
Mains input
100–240 V · 50/60 Hz100–240 V · 50/60 Hz
Fan noise
Max 28 dB(A) · Normal 26 dB(A)Normal 33 dB(A) · Eco 28 dB(A)
Safety & support
Risk group
RG2RG2
Marks
—CE, FCC
Warranty
1 yr (light source 3 mo)3 yr (light source 1 yr)
User manual
https://region-resource.optoma.com/products/import/Documents/13cdc4ab-4017-4930-a4fd-d023d407c4fe.pdfhttps://www.viewsonicglobal.com/public/products_download/user_guide/projector/PX749-4K/PX749-4K_UG_ENG.pdf
Spare parts
Lamp BL-FU240E—
In the box
In the box
Power cord, Remote, Remote batteries, User manualPower cord, Remote, Quick start guide
Remote
BacklitBacklit
Optoma UHD35xMSRP $1,499
ViewSonic PX749-4K$1,169.12 · Amazon
Buy