Product comparison · 2 data projectors

BenQ MX823ST data projector Short throw projector 3200 ANSI lumens DLP XGA (1024x768) 3D Silver vs Epson PowerLite X21

46specifications compared
27differ
19identical
35known for one product only

Key differences

Projector brightness
- MX823ST data projector Short throw projector 3200 ANSI lumens DLP XGA (1024x768) 3D Silver:3200 ANSI lumens
- PowerLite X21:3000 ANSI lumens
Projection technology
- MX823ST data projector Short throw projector 3200 ANSI lumens DLP XGA (1024x768) 3D Silver:DLP
- PowerLite X21:3LCD
Contrast ratio (typical)
- MX823ST data projector Short throw projector 3200 ANSI lumens DLP XGA (1024x768) 3D Silver:13000:1
- PowerLite X21:10000:1
Screen size compatibility
- MX823ST data projector Short throw projector 3200 ANSI lumens DLP XGA (1024x768) 3D Silver:1524 - 7620 mm (60 - 300")
- PowerLite X21:762 - 7620 mm (30 - 300")
Service life of light source
- MX823ST data projector Short throw projector 3200 ANSI lumens DLP XGA (1024x768) 3D Silver:4000 h
- PowerLite X21:5000 h
Service life of light source (economic mode)
- MX823ST data projector Short throw projector 3200 ANSI lumens DLP XGA (1024x768) 3D Silver:5000 h
- PowerLite X21:6000 h
Lamp power
- MX823ST data projector Short throw projector 3200 ANSI lumens DLP XGA (1024x768) 3D Silver:210 W
- PowerLite X21:200 W
Focal length range
- MX823ST data projector Short throw projector 3200 ANSI lumens DLP XGA (1024x768) 3D Silver:0 - 6.9 mm
- PowerLite X21:16.9 - 20.28 mm

Side by side

Differences highlightedShow differences only

Comparison of MX823ST, PowerLite X21
81 specifications	A BenQ MX823ST data projector Short throw projector 3200 ANSI lumens DLP XGA (1024x768) 3D Silver Model MX823ST View product	B Epson PowerLite X21 View product
Projector4 differ
Projector brightnessDiffers	3200 ANSI lumens	3000 ANSI lumens
Projection technologyDiffers	DLP	3LCD
Projector native resolution	XGA (1024x768)	XGA (1024x768)
Contrast ratio (typical)Differs	13000:1	10000:1
Native aspect ratio	4:3	4:3
Supported aspect ratiosKnown for one	4:3	Unknown — not stated by the source
Screen size compatibilityDiffers	1524 - 7620 mm (60 - 300")	762 - 7620 mm (30 - 300")
Number of coloursKnown for one	1.073 billion colours	Unknown — not stated by the source
Horizontal scan rangeKnown for one	15 - 102 kHz	Unknown — not stated by the source
Vertical scan rangeKnown for one	23 - 120 Hz	Unknown — not stated by the source
Keystone correction, verticalKnown for one	± 30°	Unknown — not stated by the source
Projection distanceKnown for one	Unknown — not stated by the source	0.7 - 7.6 m
Colour light outputKnown for one	Unknown — not stated by the source	3000 ANSI lumens
White light outputKnown for one	Unknown — not stated by the source	3000 ANSI lumens
Light source3 differ
Light source type	Lamp	Lamp
Service life of light sourceDiffers	4000 h	5000 h
Service life of light source (economic mode)Differs	5000 h	6000 h
Lamp powerDiffers	210 W	200 W
Lamp typeKnown for one	Unknown — not stated by the source	UHE
Lamps quantityKnown for one	Unknown — not stated by the source	1 lamp(s)
Lens system2 differ
Focal length rangeDiffers	0 - 6.9 mm	16.9 - 20.28 mm
Aperture range (F-F)Differs	0 - 2.6	1.58 - 1.72
Zoom ratioKnown for one	Fixed	Unknown — not stated by the source
Throw ratioKnown for one	0.61:1	Unknown — not stated by the source
OffsetKnown for one	130%	Unknown — not stated by the source
FocusKnown for one	Unknown — not stated by the source	Manual
Video1 differ
Analog signal format systemDiffers	NTSC, PAL, SECAM	NTSC, NTSC 4.43, PAL, PAL 60, PAL M, PAL N, SECAM
Full HD	No	No
3DKnown for one	Yes	Unknown — not stated by the source
Colour modes (3D)Known for one	Cinema	Unknown — not stated by the source
Supported graphics resolutionsKnown for one	1600 x 1200 (UXGA), 640 x 480 (VGA)	Unknown — not stated by the source
Supported video modes	1080i, 1080p, 480i, 480p, 576i, 576p, 720p	1080i, 1080p, 480i, 480p, 576i, 576p, 720p
Video colour modesKnown for one	Dynamic, Presentation, sRGB	Unknown — not stated by the source
Ports & interfaces4 differ
VGA (D-Sub) ports quantity	3	3
HDMI ports quantity	1	1
Component video (YPbPr/YCbCr) in	0	0
Composite video inDiffers	1	0
DVI port	No	No
S-Video inputs quantity	1	1
USB 2.0 ports quantityDiffers	1	2
Audio (L/R) inDiffers	1	0
Serial interface type	RS-232	RS-232
PC Audio inKnown for one	Yes	Unknown — not stated by the source
PC Audio outKnown for one	Yes	Unknown — not stated by the source
USB connector typeDiffers	Mini-USB B	USB Type-A, USB Type-B
Network2 differ
Ethernet LANDiffers	Yes	No
Ethernet LAN (RJ-45) portsDiffers	1	0
Features2 differ
Noise levelDiffers	33 dB	37 dB
Noise level (economic mode)Differs	28 dB	29 dB
On Screen Display (OSD)Known for one	Yes	Unknown — not stated by the source
On Screen Display (OSD) languagesKnown for one	Arabic, Bulgarian, Simplified Chinese, Traditional Chinese, Croatian, Czech, Danish, German, Dutch, English, Spanish, Finnish, French, Greek, Hungarian, Indonesian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Romanian, Russian, Swedish, Thai, Turkish	Unknown — not stated by the source
HDCPKnown for one	Unknown — not stated by the source	No
Multimedia1 differ
Built-in speaker(s)	Yes	Yes
Number of built-in speakers	1	1
RMS rated powerDiffers	10 W	5 W
Design2 differ
Product typeDiffers	Short throw projector	Standard throw projector
Market positioningKnown for one	Short throw	Unknown — not stated by the source
Product colourDiffers	Silver	White
Placement	Desktop	Desktop
Cable lock slotKnown for one	Unknown — not stated by the source	Yes
Cable lock slot typeKnown for one	Unknown — not stated by the source	Kensington
Displayidentical
Built-in display	No	No
Power1 differ
Power source	AC	AC
Power consumption (typical)Differs	290 W	284 W
Power consumption (standby)Known for one	0.5 W	Unknown — not stated by the source
Power consumption (PowerSave)Known for one	240 W	Unknown — not stated by the source
AC input voltage	100 - 240 V	100 - 240 V
AC input frequency	50 - 60 Hz	50 - 60 Hz
Weight & dimensions4 differ
WeightDiffers	2.6 kg	2.5 kg
WidthDiffers	287.3 mm	295 mm
DepthDiffers	232.6 mm	244 mm
HeightDiffers	114.4 mm	89 mm
Packaging content1 differ
Remote control includedDiffers	Yes	No
Batteries includedKnown for one	Yes	Unknown — not stated by the source
Cables includedKnown for one	VGA	Unknown — not stated by the source
ManualKnown for one	Yes	Unknown — not stated by the source
Quick start guideKnown for one	Yes	Unknown — not stated by the source
Warranty cardKnown for one	Yes	Unknown — not stated by the source
Other featuresidentical
RS-232 ports	1	1
Storageidentical
Card reader integratedKnown for one	Unknown — not stated by the source	No
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	5 - 35 °C

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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