Epson BrightLink 1480Fi vs ViewSonic LS831WU

ViewSonic LS831WU is $590 cheaper and sharper.

Key differences
White light output
5,000 lm ISO (Normal power)4,500 lm ANSI
Native resolution
1366 × 768WUXGA (1920 × 1200)
Throw ratio
0.27–0.37:10.25:1
Fan noise
Normal 36 dB(A) · Eco 27 dB(A)—
MSRP
$3,090$2,500
Room fit
Distance to screen
0.60–0.82 m0.54 m
Picture
White light output
5,000 lm ISO (Normal power)4,500 lm ANSI
Colour light output
5,000 lm (Normal power)—
Brightness by mode
Normal 5,000 lm · Eco 3,500 lm—
Eco brightness
70%Derived—
Imaging technology
3LCDDLP
Native resolution
1366 × 768WUXGA (1920 × 1200)
Native aspect
16:9Derived16:10Derived
Pixel shift
Yes (scheme not stated)—
Addressable resolution
1080p (1920 × 1080)—
Dynamic contrast
Up to 2,500,000:13,000,000:1
Picture mode memories
—2
3D
—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-source life
20,000 h normal · 30,000 h eco20,000 h
Life defined as
50% brightness—
Light output control
Continuous—
Constant brightness mode
Yes—
Optics
Throw ratio
0.27–0.37:10.25:1
Image size
65–100 in70–200 in
Zoom
DigitalNone
Focal length
3.9 mm—
Aperture (f-number)
1.5—
Focus
ManualManual
Vertical lens shift
—None
Horizontal lens shift
—None
Vertical keystone
3°5°
Horizontal keystone
3°5°
Corner correction
—4-corner
Grid warp
Yes—
Interchangeable lens
—No
Inputs & control
HDMI inputs
3 × HDMI2 × HDMI 2.0 (HDCP 2.2)
Other video inputs
VGA, CompositeVGA, Composite, HDBaseT
Max input resolution
—4K UHD
Audio inputs
3.5 mm, Microphone3.5 mm, RCA
Control ports
RS-232RS-232, 12 V trigger
Control-system drivers
CrestronCrestron, AMX
Horizontal scan
—15–102 kHz
Vertical scan
—23–120 Hz
Smart platform
Wi-Fi
Wi-Fi 5—
Ethernet
YesYes
Casting
Miracast—
Audio
Speaker power
16 W20 W
Speakers
22
Layout
StereoStereo
Audio outputs
3.5 mm3.5 mm
HDMI audio return
NoneDerivedNoneDerived
Physical & installation
Dimensions (W × D × H)
460 × 462 × 376 mm492 × 387 × 157 mm
Weight
9,700 g9,900 g
Orientations
Table, CeilingTable, Ceiling, Rear
Ceiling mount
—M4, 12.8–15.8 mm screws
Dust filter
Replaceable—
Environment & power
Operating temperature
0–40°C0–40°C
Operating humidity
20–80%RH10–90%RH
Altitude
3,048 m · high-altitude mode3,000 m · high-altitude mode
Power draw
Normal 381 W · Eco 270 W504 W
Standby
0.5 WUp to 0.5 W
Networked standby
2 W—
Mains input
100–240 V · 50/60 Hz100–240 V · 50/60 Hz
Fan noise
Normal 36 dB(A) · Eco 27 dB(A)—
Safety & support
Laser class
Class 1Class 1
Marks
FCC, ULFCC
Warranty
🇺🇸 US 3 yr · 🇨🇦 CA 3 yr3 yr
User manual
https://files.support.epson.com/docid/cpd5/cpd57752.pdfhttps://www.viewsonicglobal.com/public/products_download/user_guide/Projector/LS831WU/LS831WU_UG_ENG.pdf
Spare parts
Air filter V13H134A56 · Mount V12HA06A05—
In the box
In the box
Power cord, Remote, Remote batteries, Quick start guide, USB cable, Lens capPower cord, Remote, Quick start guide, VGA cable
Remote
—IR