ProjectorDB

BenQ TH685P vs ViewSonic PX748-4K

BenQ TH685P is $350 cheaper. ViewSonic PX748-4K is brighter, better for gaming and quieter.

BenQ TH685PMSRP $749
ViewSonic PX748-4KMSRP $1,099
Key differences
White light outputANSI
3,500 lm ANSI4,000 lm ANSI
Native resolution
1080p (1920 × 1080)—
Throw ratio
1.13–1.46:11.13–1.47:1
Lowest input lag
8.3 msDerived4.2 msDerived
Fan noise
Normal 35 dB(A) · Eco 29 dB(A)Normal 33 dB(A) · Eco 28 dB(A)
MSRP
$749$1,099
Room fit
Distance to screen
2.5–3.2 m2.5–3.3 m
Picture
White light outputANSI
3,500 lm ANSI4,000 lm ANSI
Imaging technology
DLPDLP
Chip / panel diagonal
0.48 in—
Native resolution
1080p (1920 × 1080)—
Native aspect
16:9Derived16:9Derived
Addressable resolution
—4K UHD (3840 × 2160)
Colour wheel segments
6—
Colour wheel speed
2×—
Dynamic contrast
10,000:112,000:1
Colour gamut
Rec. 709 95% coverage—
Colour bit depth (per channel)
10 bit10 bit
Gamma / EOTF presets
2.2, 2.4, 2.6—
Colour temperature presets
Native, Custom—
HDR formats
HDR10, HLGHDR10, HLG
Colour management (CMS)
6-axis—
Picture mode memories
22
3D
Yes—
3D formats
Frame packing, Side-by-side, Top-bottom, Frame sequential—
Light source
Light source
LampLamp
Lamp power
245 W240 W
Replacement lamp
5J.JKX05.001RLC-127
Light-source life
4,000 h normal · 10,000 h eco · 15,000 h super eco · 8,000 h dynamic4,000 h normal · 20,000 h dynamic
Warm-up time
30 s—
Cool-down time
90 s—
Optics
Throw ratio
1.13–1.46:11.13–1.47:1
Image size
30–300 in30–300 in
Projection offset
105%—
Zoom
OpticalOptical
Zoom ratio
1.3×Derived1.3×Derived
Focal length
11.9–15.5 mm—
Aperture (f-number)
1.94–2.07—
Focus
ManualManual
Vertical lens shift
±5%—
Motorised lens shift
No—
Vertical keystone
40°40°
Horizontal keystone
—40°
Auto keystone
YesYes
Corner correction
—4-corner
Grid warp
—Yes
Interchangeable lens
—No
Motion & gaming
Max input refresh
1080p: 120 Hz1080p: 240 Hz · 4K UHD: 60 Hz
Input lag
1080p: 60 Hz 16.7 ms · 120 Hz 8.3 ms · 4K UHD: 60 Hz 33.4 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
None—
Max input resolution
4K UHD4K UHD
Audio inputs
3.5 mm—
Control ports
RS-232RS-232, 12 V trigger
Horizontal scan
15–102 kHz15–129 kHz
Vertical scan
23–120 Hz23–240 Hz
Smart platform
Ethernet
—Yes
Smart platform
None—
Audio
Speaker power
5 W10 W
Speakers
11
Layout
MonoMono
Audio outputs
3.5 mm3.5 mm
HDMI audio return
NoneDerivedNoneDerived
Physical & installation
Dimensions (W × D × H)
312 × 225 × 110 mm312 × 222 × 108 mm
Weight
2,790 g2,800 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 mode3,000 m · high-altitude mode
Power draw
Max 340 W · Normal 297 W · Eco 206 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 35 dB(A) · Eco 29 dB(A)Normal 33 dB(A) · Eco 28 dB(A)
Safety & support
Risk group
RG2RG2
Marks
—FCC
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/TH685P/TH685P_UM_EN_230605154000.pdfhttps://www.viewsonicglobal.com/public/products_download/user_guide/Projector/PX701-4K_PX728-4K_PX748-4K/PX701-4K_PX728-4K_PX748-4K_UG_ENG.pdf
Spare parts
Lamp 5J.JKX05.001—
In the box
In the box
Power cord, Remote, Remote batteries, Quick start guide, Warranty cardPower cord, Remote, Quick start guide, USB cable
Remote
IRIR