BenQ LK936ST vs ViewSonic LS900WU

BenQ LK936ST is lighter and in stock. ViewSonic LS900WU is $946 cheaper and brighter.

	BenQ LK936ST$4,899 · Amazon Buy	ViewSonic LS900WUMSRP $3,953

Key differences
White light outputANSI
White light outputANSI	5,100 lm ANSI	6,000 lm ANSI
Native resolution
Native resolution	—	WUXGA (1920 × 1200)
Throw ratio
Throw ratio	0.81–0.89:1	1.2–1.9:1
Lowest input lag
Lowest input lag	16.7 msDerived	—
HDR formats
HDR formats	HDR10, HLG	—
Fan noise
Fan noise	Normal 40 dB(A) · Eco 33 dB(A)	—
MSRP
MSRP	—	$3,953
Best price
Best price	$4,899	—
Room fit80″100″120″150″
Distance to screen
Distance to screen	1.8–2.0 m	2.6–4.1 m
Picture
White light outputANSI
White light outputANSI	5,100 lm ANSI	6,000 lm ANSI
Imaging technology
Imaging technology	DLP	DLP
Native resolution
Native resolution	—	WUXGA (1920 × 1200)
Native aspect
Native aspect	16:9Derived	16:10Derived
Addressable resolution
Addressable resolution	4K UHD (3840 × 2160)	—
Dynamic contrast
Dynamic contrast	3,000,000:1	100,000:1
Colour gamut
Colour gamut	Rec. 709 92% coverage	—
Colour bit depth (per channel)
Colour bit depth (per channel)	10 bit	10 bit
Gamma / EOTF presets
Gamma / EOTF presets	2.2, 2.4, 2.6	—
HDR formats
HDR formats	HDR10, HLG	—
Colour management (CMS)
Colour management (CMS)	6-axis	—
3D
3D	Yes	Yes
3D formats
3D formats	Frame sequential	Side-by-side, Top-bottom, Frame sequential
3D glasses sync
3D glasses sync	DLP-Link	—
Light source
Light source
Light source	Laser (phosphor)	Laser (phosphor)
Emitter
Emitter	—	Blue laser + phosphor
Light-source life
Light-source life	20,000 h	20,000 h normal · 30,000 h dynamic
Warm-up time
Warm-up time	30 s	—
Cool-down time
Cool-down time	90 s	—
Optics
Throw ratio
Throw ratio	0.81–0.89:1	1.2–1.9:1
Image size
Image size	30–300 in	50–300 in
Zoom
Zoom	Optical	Optical
Zoom ratio
Zoom ratio	1.1×Derived	1.58×Derived
Focal length
Focal length	8.6–9.4 mm	—
Aperture (f-number)
Aperture (f-number)	1.83–1.86	—
Focus
Focus	Manual	—
Autofocus
Autofocus	No	—
Vertical lens shift
Vertical lens shift	±60%	-2.4–9.2%
Horizontal lens shift
Horizontal lens shift	±23%	±2.5%
Motorised lens shift
Motorised lens shift	No	—
Vertical keystone
Vertical keystone	40°	25°
Horizontal keystone
Horizontal keystone	40°	30°
Auto keystone
Auto keystone	Yes	—
Corner correction
Corner correction	—	4-corner
Grid warp
Grid warp	Yes	—
Motion & gaming
Input lag
Input lag	1080p: 60 Hz 16.7 ms · 4K UHD: 60 Hz 16.7 ms	—
Inputs & control
HDMI inputs
HDMI inputs	HDMI 2.0 (HDCP 2.2) · HDMI 2.0 (eARC, HDCP 2.2)	3 × HDMI 1.4
Other video inputs
Other video inputs	HDBaseT	VGA, Composite, HDBaseT
Max input resolution
Max input resolution	4K UHD	WUXGA
Audio inputs
Audio inputs	—	3.5 mm, RCA
Control ports
Control ports	RS-232, Wired IR, 12 V trigger	RS-232
Control-system drivers
Control-system drivers	Crestron	Crestron, AMX
Horizontal scan
Horizontal scan	15–135 kHz	15–102 kHz
Vertical scan
Vertical scan	23–240 Hz	23–120 Hz
Smart platform
Ethernet
Ethernet	Yes	—
Audio
Speaker power
Speaker power	10 W	10 W
Speakers
Speakers	1	2
Layout
Layout	Mono	—
Audio formats
Audio formats	Dolby Atmos	—
Audio outputs
Audio outputs	3.5 mm, Optical, HDMI eARC	3.5 mm
HDMI audio return
HDMI audio return	eARCDerived	NoneDerived
Physical & installation
Dimensions (W × D × H)
Dimensions (W × D × H)	416 × 351 × 166 mm	360 × 440 × 161 mm
Weight
Weight	7,000 g	11,000 g
Orientations
Orientations	—	Portrait, 360°
Ceiling mount
Ceiling mount	—	M4, screws ≤ 12 mm
Dust filter
Dust filter	None	—
Ingress protection
Ingress protection	IP5X	—
Sealed optical engine
Sealed optical engine	Yes	—
Environment & power
Operating temperature
Operating temperature	0–40°C	0–40°C
Operating humidity
Operating humidity	10–90%RH	10–90%RH
Altitude
Altitude	3,000 m · high-altitude mode	3,000 m
Power draw
Power draw	Max 520 W · Normal 440 W	430 W
Standby
Standby	Up to 0.5 W	Up to 0.5 W
Networked standby
Networked standby	Up to 2 W	—
Mains input
Mains input	100–240 V · 50/60 Hz	100–240 V · 50/60 Hz
Fan noise
Fan noise	Normal 40 dB(A) · Eco 33 dB(A)	—
Safety & support
Laser class
Laser class	Class 1	Class 1 (US: Class 3R)
Risk group
Risk group	RG2	RG2
FDA laser notice
FDA laser notice	—	Notice 50
Marks
Marks	—	FCC, UL
Warranty
Warranty	3 yr	5 yr or 20,000 h (light source 5 yr or 20,000 h)
User manual
User manual	https://esupportdownload.benq.com/esupport/PROJECTOR%20FOR%20BUSINESS/UserManual/LK936ST/LK936ST_UM_EN_241101130452.pdf	https://www.viewsonicglobal.com/public/products_download/user_guide/Projector/LS900WU/LS900WU_UG_ENG.pdf
In the box
In the box
In the box	Power cord, Remote, Remote batteries, Quick start guide, User manual, Warranty card, HDMI cable	Power cord, Remote, Quick start guide, VGA cable

BenQ LK936ST$4,899 · Amazon

Buy

ViewSonic LS900WUMSRP $3,953