Christie 4K860-iS vs Optoma ProScene ZU820TNL

	Christie 4K860-iS	Optoma ProScene ZU820TNL MSRP $4,999
Key differences
White light outputISO	8,500 lm ISO · 7,200 lm ANSI	8,800 lm ISO · 7,400 lm ANSI
Native resolution	1080p (1920 × 1080)	WUXGA (1920 × 1200)
Throw ratio	1.25–2:1	—
Fan noise	Up to Eco 34 dB(A)	Max 36 dB(A)
Price	—	MSRP $4,999
Room fit80″100″120″150″
Distance to screen	2.8–4.4 m	—
Brightness
Rated brightness	8,500 lmDerived	8,800 lmDerived
White light outputISO	8,500 lm ISO · 7,200 lm ANSI	8,800 lm ISO · 7,400 lm ANSI
Brightness uniformity	—	95%
Display system
Imaging technology	DLP	DLP
Chip / panel diagonal	0.65 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)	—
Contrast
Dynamic contrast	—	3,000,000:1
Dynamic contrast method	Light-source dimming	—
3D
3D	Yes	Yes
3D formats	Frame packing, Side-by-side, Top-bottom, Frame sequential	—
Light source
Light source	Laser (phosphor)	Laser (phosphor)
Emitter	Blue laser + phosphor	—
Light engine	—	DuraCore Laser
Light-source life	20,000 h max	30,000 h eco
Life defined as	50% brightness	—
Constant brightness mode	—	Yes
Optics
Throw ratio	1.25–2:1	—
Image size	60–200 in	—
Zoom	Optical	—
Zoom ratio	1.6×Derived	—
Focus	Motorised	Motorised
Vertical lens shift	±110%	—
Horizontal lens shift	±50%	—
Motorised lens shift	Yes	Yes
Lens memory slots	5	5
Vertical keystone	—	30°
Horizontal keystone	—	30°
Corner correction	4-corner	4-corner
Grid warp	Yes	Yes
Interchangeable lens	No	Yes
Inputs & control
HDMI inputs	2 × HDMI 2.0	2 × HDMI 2.0
HDMI inputs (count)	2Derived	2Derived
Newest HDMI version	HDMI 2.0Derived	HDMI 2.0Derived
Other video inputs	HDBaseT	+ VGA, HDBaseT
Max input resolution	—	DCI 4K
Audio inputs	—	3.5 mm
Control ports	RS-232, Wired IR, 12 V trigger	RS-232, Wired IR, 12 V trigger
PJLink	—	Class 1
Control-system drivers	Crestron, AMX	Crestron, AMX
Horizontal scan	15.73–135 kHz	—
Vertical scan	24–240 Hz	—
Smart platform
Wi-Fi	—	None
Ethernet	Yes	Yes
Audio
Speaker power	20 W	20 W
Speakers	2	2
Layout	Stereo	—
Audio outputs	3.5 mm	3.5 mm
HDMI audio return	NoneDerived	NoneDerived
Physical & installation
Dimensions (W × D × H)	—	486 × 376 × 185 mm
Weight	15,000 g	12,601 g
Orientations	360°	360°
Ceiling mount	4 × M4	—
Ingress protection	IP5X (light engine)	IP5X (light engine)
Sealed optical engine	Yes	—
Environment & power
Operating temperature	0–40°C	—
Operating humidity	10–85%RH	—
Altitude	3,048 m · high-altitude mode	—
Power draw	—	Max 598 W
Standby	Up to 0.5 W	—
Mains input	100–240 V · 50/60 Hz	90–264 V · 50/60 Hz
Noise
Fan noise	Up to Eco 34 dB(A)	Max 36 dB(A)
Safety & compliance
Laser class	Class 1	Class 1
Risk group	RG2	RG2
FDA laser notice	Notice 57	Notice 57
Marks	+ CE, FCC, + CCC, + KC, + PSE, + RCM	FCC
Support & ownership
User manual	https://www.christiedigital.com/globalassets/resources/public/020-002098-01-christie-lit-man-usr-inspire-series.pdf	https://region-resource.optoma.com/products/documents/LB1C8hGZpjkehqqLMF8GtQVYyc4eWqkBhrj9Bny8.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	—
Remote	IR	Backlit