Christie DWU850-GS vs Optoma ProScene ZU920T

	Christie DWU850-GS MSRP $18,995	Optoma ProScene ZU920T MSRP $12,799
Key differences
White light outputANSI	8,400 lm ISO · 7,500 lm ANSI	8,200 lm ANSI
Throw ratio	—	1.25–2:1
Fan noise	Normal 36 dB(A) · Eco 32 dB(A)	Max 38 dB(A) · Eco 36 dB(A)
Price	MSRP $18,995	MSRP $12,799
Room fit80″100″120″150″
Distance to screen	—	2.7–4.3 m
Brightness
Rated brightness	8,400 lmDerived	8,200 lmDerived
White light outputANSI	8,400 lm ISO · 7,500 lm ANSI	8,200 lm ANSI
Claimed brightness (non-standard)	—	9,800 lm
Brightness uniformity	—	95%
Display system
Imaging technology	DLP	DLP
Chip / panel diagonal	0.67 in	—
On-screen resolution	WUXGA (1920 × 1200)Derived	WUXGA (1920 × 1200)Derived
Native resolution	WUXGA (1920 × 1200)	WUXGA (1920 × 1200)
Native aspect	16:10Derived	16:10Derived
Colour wheel segments	4	—
Contrast
Dynamic contrast	6,000:1	3,000,000:1
3D
3D	Yes	Yes
3D formats	Frame packing, Side-by-side, Top-bottom, Frame sequential	Frame packing, Side-by-side, Top-bottom, Frame sequential
Light source
Light source	Laser (phosphor)	Laser (phosphor)
Emitter	—	Blue laser + phosphor
Light engine	—	DuraCore
Light-source life	20,000 h	30,000 h eco
Light output control	—	Continuous
Constant brightness mode	—	Yes
Optics
Throw ratio	—	1.25–2:1
Image size	—	50–300 in
Projection offset	—	50%
Zoom	Optical	Optical
Zoom ratio	—	1.6×Derived
Focal length	—	18.72–29.59 mm
Focus	Motorised	—
Vertical lens shift	±100%	±55%
Horizontal lens shift	±30%	±25%
Motorised lens shift	Yes	Yes
Vertical keystone	—	30°
Horizontal keystone	—	30°
Corner correction	—	4-corner
Grid warp	Yes	Yes
Interchangeable lens	Yes	No
Inputs & control
HDMI inputs	2 × HDMI	2 × HDMI 2.0
HDMI inputs (count)	2Derived	2Derived
Newest HDMI version	—	HDMI 2.0Derived
Other video inputs	VGA, HDBaseT, + SDI	VGA, HDBaseT
Max input resolution	—	DCI 4K
Audio inputs	—	3.5 mm
Control ports	RS-232, Wired IR	RS-232, Wired IR, + 12 V trigger
Control-system drivers	Crestron	Crestron, + AMX
Horizontal scan	15–91 kHz	15.38–91.15 kHz
Vertical scan	24–85 Hz	24–85 Hz
Smart platform
Wi-Fi	—	None
Ethernet	Yes	Yes
Audio
Speaker power	—	10 W
Speakers	—	2
Audio outputs	—	3.5 mm
HDMI audio return	—	NoneDerived
Physical & installation
Dimensions (W × D × H)	—	486 × 433 × 176 mm
Weight	23,700 g	13,997 g
Orientations	Portrait, 360°	Portrait, 360°
Ingress protection	—	IP5X (light engine)
Environment & power
Operating temperature	0–40°C	5–40°C
Operating humidity	10–85%RH	10–85%RH
Altitude	3,048 m · high-altitude mode	—
Power draw	900 W	Max 505 W
Standby	—	0.5 W
Power supply	—	Built in
Mains input	100–240 V · 50/60 Hz	90–264 V · 50/60 Hz
Noise
Fan noise	Normal 36 dB(A) · Eco 32 dB(A)	Max 38 dB(A) · Eco 36 dB(A)
Safety & compliance
Laser class	Class 1	Class 1
Risk group	RG2	RG2
FDA laser notice	Notice 50	Notice 57
Marks	CE, FCC, CCC, KC, PSE, RCM	—
Support & ownership
Warranty	—	3 yr
User manual	https://www.christiedigital.com/globalassets/resources/public/020-001044-03-christie-lit-man-usr-gs-series.pdf	https://region-resource.optoma.com/products/documents/0IpD9LHLfKhvLaojoVAVdxCNA9M3l5rcQIXIfU8B.pdf
In the box
In the box	Power cord, Remote, User manual	—
Remote	IR	—