Epson PowerLite 685W vs NEC UM361X

	Epson PowerLite 685W MSRP $1,390	NEC UM361X
Key differences
White light outputISO	3,500 lm ISO (Normal power)	3,600 lm ISO
Native resolution	WXGA (1280 × 800)	1024 × 768
Throw ratio	0.28–0.37:1	0.36:1
Fan noise	Normal 35 dB(A) · Eco 30 dB(A)	Max 38 dB(A) · Normal 29 dB(A) · Eco 28 dB(A)
Price	MSRP $1,390	—
Room fit80″100″120″150″
Distance to screen	0.60–0.80 m	0.73 m
Brightness
Rated brightness	3,500 lmDerived	3,600 lmDerived
White light outputISO	3,500 lm ISO (Normal power)	3,600 lm ISO
Colour light output	3,500 lm (Normal power)	—
Brightness by mode	Normal 3,500 lm · Eco 2,900 lm	—
Eco brightness	83%Derived	—
Display system
Imaging technology	3LCD	3LCD
Chip / panel diagonal	—	0.63 in
On-screen resolution	WXGA (1280 × 800)Derived	1024 × 768Derived
Native resolution	WXGA (1280 × 800)	1024 × 768
Native aspect	16:10Derived	4:3Derived
Contrast
Dynamic contrast	Up to 14,000:1	6,000:1
Dynamic contrast method	Dynamic iris	Dynamic iris
Colour
Colour bit depth (per channel)	10 bit	10 bit
Calibration
Picture mode memories	—	7
Light source
Light source	Lamp	Lamp
Lamp power	250 W	255 W
Replacement lamp	ELPLP91	NP33LP
Light-source life	5,000 h normal · 10,000 h eco	3,800 h max · 5,000 h normal · 6,000 h eco
Light output control	—	Steps
Warm-up time	—	6 s
Cool-down time	0 s	0 s
Optics
Throw ratio	0.28–0.37:1	0.36:1
Throw measured from	—	Front of the case
Image size	60–100 in	61.5–117 in
Projection offset	—	75%
Zoom	Digital	Digital
Focal length	3.7 mm	4.78 mm
Aperture (f-number)	1.6	1.8
Focus	Manual	Manual
Autofocus	—	No
Vertical keystone	3°	10°
Horizontal keystone	3°	10°
Corner correction	—	4-corner
Inputs & control
HDMI inputs	3 × HDMI	2 × HDMI
HDMI inputs (count)	3Derived	2Derived
Other video inputs	VGA, + Composite	VGA
Max input resolution	1080p	WUXGA
Audio inputs	3.5 mm, Microphone	—
USB media playback	Yes	—
Control ports	RS-232	RS-232
PJLink	—	Class 1
Control-system drivers	Crestron	—
Horizontal scan	—	15–100 kHz
Vertical scan	—	50–120 Hz
Smart platform
Ethernet	Yes	Yes
Audio
Speaker power	16 W	20 W
Speakers	1	1
Layout	Mono	Mono
Audio outputs	3.5 mm	3.5 mm
HDMI audio return	NoneDerived	NoneDerived
Physical & installation
Dimensions (W × D × H)	367 × 400 × 149 mm	378 × 428 × 112 mm
Weight	5,700 g	5,600 g
Orientations	Table, Ceiling, Rear	Table, Ceiling, Rear
Dust filter	Replaceable	Replaceable
Environment & power
Operating temperature	5–40°C	5–40°C
Operating humidity	20–80%RH	20–80%RH
Altitude	3,000 m · high-altitude mode	2,600 m · high-altitude mode
Power draw	Normal 373 W · Eco 324 W	Max 337 W · Normal 257 W · Eco 214 W
Standby	0.23 W	0.39 W
Networked standby	2.2 W	2.4 W
Mains input	100–240 V · 50/60 Hz	100–240 V · 50/60 Hz
Noise
Fan noise	Normal 35 dB(A) · Eco 30 dB(A)	Max 38 dB(A) · Normal 29 dB(A) · Eco 28 dB(A)
Safety & compliance
Marks	FCC, UL	FCC, UL
Support & ownership
Warranty	2 yr (light source 3 mo)	3 yr (light source 6 mo or 1,000 h)
User manual	https://files.support.epson.com/docid/cpd5/cpd50650.pdf	https://sharp-displays.jp.sharp/support/webdl/dl_service/data/manual/en/um351w/UM351W_manual_ENG_v3.pdf
Spare parts	Lamp ELPLP91 · Air filter ELPAF49 · Mount ELPMB46	—
In the box
In the box	Power cord, Remote, Remote batteries, Quick start guide, User manual, + Software CD	Power cord, Remote, Remote batteries, Quick start guide, User manual, + VGA cable
Remote	—	IR