Christie 4K860-iS vs Christie DWU850-GS

	Christie 4K860-iS	Christie DWU850-GS MSRP $18,995
Key differences
White light outputISO	8,500 lm ISO · 7,200 lm ANSI	8,400 lm ISO · 7,500 lm ANSI
Native resolution	1080p (1920 × 1080)	WUXGA (1920 × 1200)
Throw ratio	1.25–2:1	—
Fan noise	Up to Eco 34 dB(A)	Normal 36 dB(A) · Eco 32 dB(A)
Price	—	MSRP $18,995
Room fit80″100″120″150″
Distance to screen	2.8–4.4 m	—
Brightness
Rated brightness	8,500 lmDerived	8,400 lmDerived
White light outputISO	8,500 lm ISO · 7,200 lm ANSI	8,400 lm ISO · 7,500 lm ANSI
Display system
Imaging technology	DLP	DLP
Chip / panel diagonal	0.65 in	0.67 in
On-screen resolution	4K UHD (3840 × 2160)Derived	WUXGA (1920 × 1200)Derived
Native resolution	1080p (1920 × 1080)	WUXGA (1920 × 1200)
Native aspect	16:9Derived	16:10Derived
Addressable resolution	4K UHD (3840 × 2160)	—
Colour wheel segments	—	4
Contrast
Dynamic contrast	—	6,000:1
Dynamic contrast method	Light-source dimming	—
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-source life	20,000 h max	20,000 h
Life defined as	50% brightness	—
Optics
Throw ratio	1.25–2:1	—
Image size	60–200 in	—
Zoom	Optical	Optical
Zoom ratio	1.6×Derived	—
Focus	Motorised	Motorised
Vertical lens shift	±110%	±100%
Horizontal lens shift	±50%	±30%
Motorised lens shift	Yes	Yes
Lens memory slots	5	—
Corner correction	4-corner	—
Grid warp	Yes	Yes
Interchangeable lens	No	Yes
Inputs & control
HDMI inputs	2 × HDMI 2.0	2 × HDMI
HDMI inputs (count)	2Derived	2Derived
Newest HDMI version	HDMI 2.0Derived	—
Other video inputs	HDBaseT	+ VGA, HDBaseT, + SDI
Control ports	RS-232, Wired IR, + 12 V trigger	RS-232, Wired IR
Control-system drivers	Crestron, + AMX	Crestron
Horizontal scan	15.73–135 kHz	15–91 kHz
Vertical scan	24–240 Hz	24–85 Hz
Smart platform
Ethernet	Yes	Yes
Audio
Speaker power	20 W	—
Speakers	2	—
Layout	Stereo	—
Audio outputs	3.5 mm	—
HDMI audio return	NoneDerived	—
Physical & installation
Weight	15,000 g	23,700 g
Orientations	360°	+ Portrait, 360°
Ceiling mount	4 × M4	—
Ingress protection	IP5X (light engine)	—
Sealed optical engine	Yes	—
Environment & power
Operating temperature	0–40°C	0–40°C
Operating humidity	10–85%RH	10–85%RH
Altitude	3,048 m · high-altitude mode	3,048 m · high-altitude mode
Power draw	—	900 W
Standby	Up to 0.5 W	—
Mains input	100–240 V · 50/60 Hz	100–240 V · 50/60 Hz
Noise
Fan noise	Up to Eco 34 dB(A)	Normal 36 dB(A) · Eco 32 dB(A)
Safety & compliance
Laser class	Class 1	Class 1
Risk group	RG2	RG2
FDA laser notice	Notice 57	Notice 50
Marks	CE, FCC, CCC, KC, PSE, RCM	CE, FCC, CCC, KC, PSE, RCM
Support & ownership
User manual	https://www.christiedigital.com/globalassets/resources/public/020-002098-01-christie-lit-man-usr-inspire-series.pdf	https://www.christiedigital.com/globalassets/resources/public/020-001044-03-christie-lit-man-usr-gs-series.pdf
Spare parts	Air filter 140-148104-XX · Mount 108-506102-XX	—
In the box
In the box	Power cord, Remote, + Remote batteries, + Lens cap	Power cord, Remote, + User manual
Remote	IR	IR