ProjectorDB

BenQ LK830ST vs ViewSonic LS850WU

BenQ LK830ST is $393 cheaper, lighter and in stock. ViewSonic LS850WU is brighter and sharper.

BenQ LK830ST$2,599 · Amazon
Buy
ViewSonic LS850WUMSRP $2,992
Key differences
White light outputANSI
4,000 lm ANSI5,000 lm ANSI
Native resolution
1080p (1920 × 1080)WUXGA (1920 × 1200)
Throw ratio
0.5:11.36–2.18:1
Lowest input lag
4.2 msDerived—
HDR formats
HDR10, HLG—
Fan noise
Normal 30 dB(A) · Eco 24 dB(A)—
MSRP
$2,499$2,992
Best price
$2,599—
Room fit
Distance to screen
1.1 m2.9–4.7 m
Picture
White light outputANSI
4,000 lm ANSI5,000 lm ANSI
Imaging technology
DLPDLP
Chip / panel diagonal
0.65 in—
Native resolution
1080p (1920 × 1080)WUXGA (1920 × 1200)
Native aspect
16:9Derived16:10Derived
Pixel shift
XPR 4-way—
Addressable resolution
4K UHD (3840 × 2160)—
Dynamic contrast
3,000,000:13,000,000:1
Colour gamut
Rec. 709 93% coverage—
Colour bit depth (per channel)
10 bit10 bit
Gamma / EOTF presets
2.2, 2.4, 2.6—
HDR formats
HDR10, HLG—
Tone mapping
Adjustable—
Colour management (CMS)
6-axis—
Picture mode memories
2—
3D
YesYes
3D formats
Frame packing, Side-by-side, Top-bottom, Frame sequentialSide-by-side, Top-bottom, Frame sequential
Light source
Light source
Laser (phosphor)Laser (phosphor)
Emitter
—Blue laser + phosphor
Light-source life
20,000 h normal · 30,000 h eco20,000 h normal · 20,000 h dynamic
Light output control
Continuous—
Optics
Throw ratio
0.5:11.36–2.18:1
Image size
70–300 in30–300 in
Projection offset
114%—
Zoom
DigitalOptical
Zoom ratio
—1.6×Derived
Focal length
17.51 mm—
Aperture (f-number)
2.8—
Focus
ManualManual
Vertical lens shift
None±50%
Horizontal lens shift
None±23%
Vertical keystone
30°40°
Horizontal keystone
30°40°
Auto keystone
Yes—
Corner correction
4-corner4-corner
Grid warp
Yes—
Interchangeable lens
No—
Motion & gaming
Max input refresh
1080p: 120 Hz · 240 Hz · 4K UHD: 60 Hz—
Input lag
1080p: 60 Hz 16.7 ms · 120 Hz 8.3 ms · 240 Hz 4.2 ms · 4K UHD: 60 Hz 16.7 ms—
Inputs & control
HDMI inputs
2 × HDMI 2.0 (HDCP 2.2)2 × HDMI 1.4
Other video inputs
—VGA, Composite, HDBaseT
Max input resolution
4K UHDWUXGA
Audio inputs
—3.5 mm, RCA
Control ports
RS-232RS-232, 12 V trigger
Control-system drivers
AMXCrestron, AMX
Horizontal scan
15–135 kHz15–102 kHz
Vertical scan
23–240 Hz23–120 Hz
Smart platform
Wi-Fi
None—
Ethernet
Yes—
Audio
Speaker power
15 W20 W
Speakers
12
Layout
Mono—
Audio outputs
3.5 mm3.5 mm
HDMI audio return
NoneDerivedNoneDerived
Physical & installation
Dimensions (W × D × H)
279 × 229 × 121 mm404 × 305 × 145 mm
Weight
3,600 g6,400 g
Colours
Black—
Orientations
Ceiling, RearTable, Ceiling, Rear, Portrait, 360°
Ceiling mount
M4M4, 12.8–15.8 mm screws
Ingress protection
IP6X (light engine)—
Sealed optical engine
Yes—
Environment & power
Operating temperature
0–40°C0–40°C
Operating humidity
10–80%RH10–90%RH
Altitude
3,000 m · high-altitude mode3,000 m
Power draw
Max 250 W · Normal 230 W · Eco 130 W430 W
Standby
Up to 0.5 WUp to 0.5 W
Networked standby
Up to 2 W—
Power supply
External adapter—
Mains input
100–240 V · 50/60 Hz100–240 V · 50/60 Hz
DC input
24 V—
Fan noise
Normal 30 dB(A) · Eco 24 dB(A)—
Safety & support
Laser class
Class 1Class 1
Risk group
RG2RG2
Marks
—FCC
Warranty
3 yr5 yr or 20,000 h (light source 5 yr or 20,000 h)
User manual
https://www.audiogeneral.com/BenQ/LK830ST/LK830ST_LH830ST_LW830ST_User_Manual.pdfhttps://www.viewsonicglobal.com/public/products_download/user_guide/Projector/LS750WU_LS850WU_LS860WU/LS750WU_LS850WU_LS860WU_UG_ENG.pdf
In the box
In the box
Power cord, Power adapter, Remote, Remote batteries, Quick start guide, Warranty cardPower cord, Remote, Quick start guide, VGA cable
Remote
Backlit—
BenQ LK830ST$2,599 · Amazon
Buy
ViewSonic LS850WUMSRP $2,992