ProjectorDB

BenQ TH671ST vs ViewSonic PX747-4K

BenQ TH671ST is $340 cheaper, lighter and in stock. ViewSonic PX747-4K is brighter.

BenQ TH671ST$849 · Amazon
Buy
ViewSonic PX747-4KMSRP $1,189
Key differences
White light outputANSI
3,000 lm ANSI3,500 lm ANSI
Native resolution
1080p (1920 × 1080)—
Throw ratio
0.69–0.83:11.47–1.76:1
Lowest input lag
16.7 msDerived—
Fan noise
Normal 33 dB(A) · Eco 29 dB(A)—
MSRP
$749$1,189
Best price
$849—
Room fit
Distance to screen
1.5–1.8 m3.3–3.9 m
Picture
White light outputANSI
3,000 lm ANSI3,500 lm ANSI
Imaging technology
DLPDLP
Chip / panel diagonal
0.65 in—
Native resolution
1080p (1920 × 1080)—
Native aspect
16:9Derived16:9Derived
Pixel shift
—Yes (scheme not stated)
Addressable resolution
—4K UHD (3840 × 2160)
Colour wheel segments
66
Colour wheel speed
2×—
Dynamic contrast
10,000:112,000:1
Colour gamut
Rec. 709 92% coverage—
Colour bit depth (per channel)
10 bit10 bit
Gamma / EOTF presets
2.2, 2.4, 2.6—
Colour management (CMS)
6-axis—
Picture mode memories
2—
3D
Yes—
3D formats
Frame packing, Side-by-side, Top-bottom, Frame sequential—
3D glasses sync
DLP-Link—
Light source
Light source
LampLamp
Lamp power
240 W240 W
Replacement lamp
—RLC-117
Light-source life
4,000 h normal · 10,000 h eco · 15,000 h super eco · 10,000 h dynamic4,000 h normal · 15,000 h dynamic
Warm-up time
30 s—
Cool-down time
90 s—
Optics
Throw ratio
0.69–0.83:11.47–1.76:1
Image size
60–120 in30–300 in
Projection offset
103%—
Zoom
OpticalOptical
Zoom ratio
1.2×Derived1.2×Derived
Focal length
10.2–12.24 mm—
Aperture (f-number)
2.6–2.78—
Focus
ManualManual
Autofocus
NoNo
Vertical lens shift
—None
Horizontal lens shift
—None
Vertical keystone
40°40°
Auto keystone
No—
Motion & gaming
Max input refresh
1080p: 60 Hz—
Input lag
1080p: 60 Hz 16.7 ms—
Inputs & control
HDMI inputs
HDMI 1.4 · HDMI 1.4 (HDCP 1.4)HDMI 2.0 (HDCP 2.2) · HDMI 1.4 (HDCP 1.4)
Other video inputs
VGAVGA
Max input resolution
WUXGA4K UHD
Audio inputs
3.5 mm—
USB media playback
No—
Control ports
RS-232RS-232, 12 V trigger
Horizontal scan
15–102 kHz15–135 kHz
Vertical scan
23–120 Hz23–120 Hz
Audio
Speaker power
5 W10 W
Speakers
11
Layout
MonoMono
Tuned by
Waves MaxxAudio—
Audio outputs
3.5 mm3.5 mm
HDMI audio return
NoneDerivedNoneDerived
Physical & installation
Dimensions (W × D × H)
296 × 224 × 120 mm332 × 261 × 135 mm
Weight
2,700 g4,200 g
Orientations
Table, Ceiling, RearTable, Ceiling, Rear
Ceiling mount
M4, 20–25 mm screwsM4, screws ≤ 8 mm
Environment & power
Operating temperature
0–40°C0–40°C
Operating humidity
10–90%RH0–90%RH
Altitude
3,000 m · high-altitude mode—
Power draw
Max 355 W · Normal 320 W · Eco 240 W310 W
Standby
Up to 0.5 WUp to 0.5 W
Mains input
100–240 V · 50/60 Hz100–240 V · 50/60 Hz
Fan noise
Normal 33 dB(A) · Eco 29 dB(A)—
Safety & support
Risk group
—RG2
Marks
CEFCC
Warranty
3 yr (light source 1 yr or 2,000 h)3 yr (light source 1 yr)
User manual
https://esupportdownload.benq.com/esupport/PROJECTOR/UserManual/TH671ST/TH671ST_UM_EN_230426092526.pdfhttps://www.viewsonicglobal.com/public/products_download/user_guide/Projector/PX727-4K_PX747-4K/PX727-4K_PX747-4K_UG_ENG.pdf
In the box
In the box
Power cord, Remote, Quick start guide, User manual, VGA cable, Lens capPower cord, Remote, Quick start guide, VGA cable
Remote
IR—
BenQ TH671ST$849 · Amazon
Buy
ViewSonic PX747-4KMSRP $1,189