Christie DWU860-iS vs Panasonic PT-REZ80

Christie DWU860-iS is brighter and lighter.

	Christie DWU860-iS	Panasonic PT-REZ80

Key differences
White light outputISO
White light outputISO	8,500 lm ISO · 7,200 lm ANSI	8,000 lm ISO (Normal power) · 8,000 lm ANSI
Throw ratio
Throw ratio	1.25–2:1	1.36–2.1:1
HDR formats
HDR formats	—	HLG
Fan noise
Fan noise	Max 34 dB(A)	Normal 35 dB(A) · Eco 35 dB(A)
Room fit80″100″120″150″
Distance to screen
Distance to screen	2.7–4.3 m	2.9–4.5 m
Picture
White light outputISO
White light outputISO	8,500 lm ISO · 7,200 lm ANSI	8,000 lm ISO (Normal power) · 8,000 lm ANSI
Brightness uniformity
Brightness uniformity	—	90%
Brightness by mode
Brightness by mode	—	Normal 8,000 lm · Eco 6,400 lm
Eco brightness
Eco brightness	—	80%Derived
Imaging technology
Imaging technology	DLP	DLP
Chip / panel diagonal
Chip / panel diagonal	0.67 in	0.8 in
Native resolution
Native resolution	WUXGA (1920 × 1200)	WUXGA (1920 × 1200)
Native aspect
Native aspect	16:10Derived	16:10Derived
Dynamic contrast
Dynamic contrast	—	25,000:1
Dynamic contrast method
Dynamic contrast method	Light-source dimming	—
Gamma / EOTF presets
Gamma / EOTF presets	—	2.2, Custom
Colour temperature presets
Colour temperature presets	—	Custom
HDR formats
HDR formats	—	HLG
3D
3D	Yes	—
3D formats
3D formats	Frame sequential	—
Light source
Light source
Light source	Laser (phosphor)	Laser (phosphor)
Emitter
Emitter	Blue laser + phosphor	—
Light-source life
Light-source life	20,000 h max	20,000 h normal · 24,000 h eco
Life defined as
Life defined as	50% brightness	50% brightness
Constant brightness mode
Constant brightness mode	Yes	—
Optics
Throw ratio
Throw ratio	1.25–2:1	1.36–2.1:1
Image size
Image size	60–200 in	70–1,000 in
Zoom
Zoom	Optical	Optical
Zoom ratio
Zoom ratio	1.6×Derived	1.54×Derived
Focal length
Focal length	—	23.9–37.2 mm
Aperture (f-number)
Aperture (f-number)	—	1.84–2.31
Focus
Focus	Motorised	Motorised
Vertical lens shift
Vertical lens shift	±110%	±60%
Horizontal lens shift
Horizontal lens shift	±50%	±29%
Motorised lens shift
Motorised lens shift	Yes	Yes
Vertical keystone
Vertical keystone	—	40°
Horizontal keystone
Horizontal keystone	—	40°
Grid warp
Grid warp	Yes	Yes
Interchangeable lens
Interchangeable lens	No	Yes
Inputs & control
HDMI inputs
HDMI inputs	HDMI 1.4 · HDMI 2.0	2 × HDMI (HDCP 2.3)
Other video inputs
Other video inputs	VGA, HDBaseT	SDI
Max input resolution
Max input resolution	DCI 4K	DCI 4K
Audio inputs
Audio inputs	3.5 mm	—
Control ports
Control ports	RS-232, Wired IR, 12 V trigger	RS-232
PJLink
PJLink	—	Class 2
Control-system drivers
Control-system drivers	Crestron, AMX	Crestron, AMX
Horizontal scan
Horizontal scan	15.38–91.15 kHz	27–148 kHz
Vertical scan
Vertical scan	24–85 Hz	24–120 Hz
Smart platform
Ethernet
Ethernet	Yes	Yes
Audio
Speaker power
Speaker power	20 W	—
Speakers
Speakers	2	—
Layout
Layout	Stereo	—
Physical & installation
Dimensions (W × D × H)
Dimensions (W × D × H)	—	498 × 648 × 212 mm
Weight
Weight	13,700 g	28,700 g
Colours
Colours	—	Black, White
Orientations
Orientations	360°	Table, Ceiling, Rear, 360°
Ceiling mount
Ceiling mount	—	5 × M6, 12 mm deep, 4 N·m
Dust filter
Dust filter	—	None
Ingress protection
Ingress protection	IP5X (light engine)	IP5X (light engine)
Sealed optical engine
Sealed optical engine	Yes	—
Environment & power
Operating temperature
Operating temperature	5–40°C	0–45°C
Operating humidity
Operating humidity	10–80%RH	10–80%RH
Altitude
Altitude	3,048 m	4,200 m
Power draw
Power draw	Normal 520 W · Eco 415 W	Max 730 W · Normal 570 W · Eco 440 W
Standby
Standby	Up to 0.5 W	0.5 W
Mains input
Mains input	100–240 V · 50/60 Hz	100–240 V · 50/60 Hz
Fan noise
Fan noise	Max 34 dB(A)	Normal 35 dB(A) · Eco 35 dB(A)
Safety & support
Laser class
Laser class	Class 1	Class 1
Risk group
Risk group	RG2	RG2
FDA laser notice
FDA laser notice	Notice 50	Notice 57
Marks
Marks	CE, FCC, CCC, KC, PSE, RCM	FCC
User manual
User manual	https://www.christiedigital.com/globalassets/resources/public/020-001934-03-LIT-MAN-USR-Inspire-Series.pdf	https://eu.connect.panasonic.com/sites/default/files/media/2024-04/PT-REZ12_manual_en_5.pdf
Firmware
Firmware	1.10.0 (Dec 2025)	—
In the box
In the box
In the box	Power cord, Remote, Remote batteries, Lens cap	Power cord, Remote, Remote batteries
Remote
Remote	IR	—