Product comparison · 2 data projectors

Acer Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White vs Acer Professional and Education U5520B Short throw projector 3000 ANSI lumens DLP 1080p (1920x1080) 3D White

44specifications compared
27differ
17identical
36known for one product only

Key differences

Projector brightness
- Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White:800 ANSI lumens
- Professional and Education U5520B Short throw projector 3000 ANSI lumens DLP 1080p (1920x1080) 3D White:3000 ANSI lumens
Projector native resolution
- Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White:WXGA (1280x800)
- Professional and Education U5520B Short throw projector 3000 ANSI lumens DLP 1080p (1920x1080) 3D White:1080p (1920x1080)
Contrast ratio (typical)
- Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White:100000:1
- Professional and Education U5520B Short throw projector 3000 ANSI lumens DLP 1080p (1920x1080) 3D White:10000:1
Native aspect ratio
- Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White:16:10
- Professional and Education U5520B Short throw projector 3000 ANSI lumens DLP 1080p (1920x1080) 3D White:16:9
Supported aspect ratios
- Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White:4:3, 16:10, 16:9
- Professional and Education U5520B Short throw projector 3000 ANSI lumens DLP 1080p (1920x1080) 3D White:4:3, 16:9
Projection distance
- Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White:0.4 - 1.7 m
- Professional and Education U5520B Short throw projector 3000 ANSI lumens DLP 1080p (1920x1080) 3D White:0.21 - 0.61 m
Horizontal synchronization (min)
- Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White:30 kHz
- Professional and Education U5520B Short throw projector 3000 ANSI lumens DLP 1080p (1920x1080) 3D White:15 kHz
Keystone correction, vertical
- Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White:-20 - 20°
- Professional and Education U5520B Short throw projector 3000 ANSI lumens DLP 1080p (1920x1080) 3D White:-15 - 15°

Side by side

Differences highlightedShow differences only

Comparison of K138ST, U5520B
80 specifications	A Acer Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White Model K138ST View product	B Acer Professional and Education U5520B Short throw projector 3000 ANSI lumens DLP 1080p (1920x1080) 3D White Model U5520B View product
Projector8 differ
Projector brightnessDiffers	800 ANSI lumens	3000 ANSI lumens
Projection technology	DLP	DLP
Projector native resolutionDiffers	WXGA (1280x800)	1080p (1920x1080)
Contrast ratio (typical)Differs	100000:1	10000:1
Native aspect ratioDiffers	16:10	16:9
Supported aspect ratiosDiffers	4:3, 16:10, 16:9	4:3, 16:9
Projection distanceDiffers	0.4 - 1.7 m	0.21 - 0.61 m
Number of colours	1.073 billion colours	1.073 billion colours
Horizontal synchronization (max)	100 kHz	100 kHz
Horizontal synchronization (min)Differs	30 kHz	15 kHz
Keystone correction, horizontalKnown for one	Unknown — not stated by the source	-15 - 15°
Keystone correction, verticalDiffers	-20 - 20°	-15 - 15°
Vertical synchronization (max)Known for one	Unknown — not stated by the source	0.12 kHz
Vertical synchronization (min)Known for one	Unknown — not stated by the source	0.024 kHz
Screen size compatibilityKnown for one	635 - 2540 mm (25 - 100")	Unknown — not stated by the source
Vertical scan rangeKnown for one	50 - 120 Hz	Unknown — not stated by the source
Light source2 differ
Light source typeKnown for one	Unknown — not stated by the source	Lamp
Service life of light sourceDiffers	20000 h	3000 h
Service life of light source (economic mode)Differs	30000 h	4000 h
Lamp typeKnown for one	Unknown — not stated by the source	OSRAM
Lamp powerKnown for one	Unknown — not stated by the source	280 W
Lamps quantity	1 lamp(s)	1 lamp(s)
Lens system2 differ
Focus	Manual	Manual
Digital zoomDiffers	1.7x	2x
Optical zoomKnown for one	Unknown — not stated by the source	1x
Throw ratioDiffers	0.8:1	0.36:1
Video1 differ
Analog signal format systemKnown for one	Unknown — not stated by the source	NTSC, PAL, SECAM
Full HDDiffers	No	Yes
3D	Yes	Yes
3D ReadyKnown for one	Yes	Unknown — not stated by the source
Ports & interfaces2 differ
VGA (D-Sub) ports quantityDiffers	1	2
HDMI ports quantityDiffers	1	2
Component video (YPbPr/YCbCr) inKnown for one	Unknown — not stated by the source	0
Composite video inKnown for one	Unknown — not stated by the source	1
DVI portKnown for one	Unknown — not stated by the source	No
S-Video inputs quantityKnown for one	Unknown — not stated by the source	1
USB 2.0 ports quantity	1	1
Audio (L/R) inKnown for one	Unknown — not stated by the source	1
Audio (L/R) outKnown for one	Unknown — not stated by the source	1
USB connector typeKnown for one	Unknown — not stated by the source	Mini-USB B
AC (power) in	Yes	Yes
Network2 differ
Ethernet LANDiffers	No	Yes
Ethernet LAN (RJ-45) portsDiffers	0	1
Wi-FiKnown for one	Unknown — not stated by the source	No
Storageidentical
Card reader integratedKnown for one	Unknown — not stated by the source	No
Features2 differ
Noise levelDiffers	33 dB	29 dB
Noise level (economic mode)Differs	29 dB	35 dB
Multimedia1 differ
Built-in speaker(s)	Yes	Yes
Number of built-in speakers	2	2
RMS rated powerDiffers	3 W	20 W
Video formats supportedKnown for one	Unknown — not stated by the source	H.264, MPEG1, MPEG2, MPEG4, VC-1, XVID
Audio formats supportedKnown for one	Unknown — not stated by the source	AAC, MP1, MP2, MP3, PCM, WAV, WMA
Design3 differ
Product typeDiffers	Standard throw projector	Short throw projector
Market positioningDiffers	Portable	Short throw
Product colour	White	White
PlacementDiffers	Desktop, Ceiling	Desktop
Displayidentical
Built-in display	No	No
Power1 differ
Power source	AC	AC
Power consumption (typical)Differs	80 W	351 W
Power consumption (PowerSave)Known for one	Unknown — not stated by the source	289 W
Power consumption (economy mode)Known for one	38 W	Unknown — not stated by the source
AC input voltageKnown for one	100 - 240 V	Unknown — not stated by the source
Operational conditions1 differ
Operating temperature (T-T)Differs	5 - 40 °C	0 - 40 °C
Operating relative humidity (H-H)Known for one	0 - 80%	Unknown — not stated by the source
Weight & dimensions1 differ
WeightDiffers	750 g	5.5 kg
WidthKnown for one	240 mm	Unknown — not stated by the source
DepthKnown for one	147 mm	Unknown — not stated by the source
HeightKnown for one	59 mm	Unknown — not stated by the source
Packaging contentidentical
Remote control included	Yes	Yes
Batteries included	Yes	Yes
Cables includedKnown for one	Unknown — not stated by the source	AC, VGA
Manual	Yes	Yes
Quick start guide	Yes	Yes
AC adapter includedKnown for one	Yes	Unknown — not stated by the source
Carrying caseKnown for one	Yes	Unknown — not stated by the source
Other features1 differ
Digital Living Network Alliance (DLNA) certifiedKnown for one	Unknown — not stated by the source	Yes
Maximum digital resolutionDiffers	1920 x 1080 pixels	1920 x 1200 pixels
RS-232 portsKnown for one	Unknown — not stated by the source	0
Softwareidentical
Windows operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Mac operating systems supportedKnown for one	Yes	Unknown — not stated by the source

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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