Product comparison · 2 data projectors

Acer Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White vs Acer P1285B Standard throw projector 3200 ANSI lumens DLP XGA (1024x768) 3D Black

46specifications compared
30differ
16identical
34known for one product only

Key differences

Projector brightness
- Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White:800 ANSI lumens
- P1285B Standard throw projector 3200 ANSI lumens DLP XGA (1024x768) 3D Black:3200 ANSI lumens
Projector native resolution
- Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White:WXGA (1280x800)
- P1285B Standard throw projector 3200 ANSI lumens DLP XGA (1024x768) 3D Black:XGA (1024x768)
Contrast ratio (typical)
- Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White:100000:1
- P1285B Standard throw projector 3200 ANSI lumens DLP XGA (1024x768) 3D Black:20000:1
Native aspect ratio
- Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White:16:10
- P1285B Standard throw projector 3200 ANSI lumens DLP XGA (1024x768) 3D Black:4:3
Supported aspect ratios
- Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White:4:3, 16:10, 16:9
- P1285B Standard throw projector 3200 ANSI lumens DLP XGA (1024x768) 3D Black:4:3, 16:9
Projection distance
- Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White:0.4 - 1.7 m
- P1285B Standard throw projector 3200 ANSI lumens DLP XGA (1024x768) 3D Black:1 - 11.3 m
Horizontal synchronization (min)
- Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White:30 kHz
- P1285B Standard throw projector 3200 ANSI lumens DLP XGA (1024x768) 3D Black:15 kHz
Keystone correction, vertical
- Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White:-20 - 20°
- P1285B Standard throw projector 3200 ANSI lumens DLP XGA (1024x768) 3D Black:-40 - 40°

Side by side

Differences highlightedShow differences only

Comparison of K138ST, P1285B
80 specifications	A Acer Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White Model K138ST View product	B Acer P1285B Standard throw projector 3200 ANSI lumens DLP XGA (1024x768) 3D Black Model P1285B View product
Projector8 differ
Projector brightnessDiffers	800 ANSI lumens	3200 ANSI lumens
Projection technology	DLP	DLP
Projector native resolutionDiffers	WXGA (1280x800)	XGA (1024x768)
Contrast ratio (typical)Differs	100000:1	20000:1
Native aspect ratioDiffers	16:10	4:3
Supported aspect ratiosDiffers	4:3, 16:10, 16:9	4:3, 16:9
Projection distanceDiffers	0.4 - 1.7 m	1 - 11.3 m
Number of colours	1.073 billion colours	1.073 billion colours
Horizontal synchronization (min)Differs	30 kHz	15 kHz
Keystone correction, verticalDiffers	-20 - 20°	-40 - 40°
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
Horizontal synchronization (max)Known for one	100 kHz	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	4000 h
Service life of light source (economic mode)Differs	30000 h	6000 h
Lamp typeKnown for one	Unknown — not stated by the source	UHP
Lamp powerKnown for one	Unknown — not stated by the source	200 W
Lamps quantity	1 lamp(s)	1 lamp(s)
Lens system2 differ
Focus	Manual	Manual
Focal length rangeKnown for one	Unknown — not stated by the source	21 - 23.1 mm
Aperture range (F-F)Known for one	Unknown — not stated by the source	2.56 - 2.8
Zoom capabilityKnown for one	Unknown — not stated by the source	Yes
Zoom typeKnown for one	Unknown — not stated by the source	Manual
Digital zoomDiffers	1.7x	2x
Optical zoomKnown for one	Unknown — not stated by the source	1.1x
Throw ratioDiffers	0.8:1	1.86 - 2.04:1
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
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
AC (power) in	Yes	Yes
USB 2.0 ports quantityKnown for one	1	Unknown — not stated by the source
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	26 dB
Noise level (economic mode)Differs	29 dB	30 dB
Multimedia2 differ
Built-in speaker(s)	Yes	Yes
Number of built-in speakersDiffers	2	1
RMS rated powerDiffers	3 W	10 W
Design2 differ
Product type	Standard throw projector	Standard throw projector
Market positioningDiffers	Portable	Presentation
Product colourDiffers	White	Black
Placement	Desktop, Ceiling	Desktop, Ceiling
Displayidentical
Built-in display	No	No
Power1 differ
Power source	AC	AC
Power consumption (typical)Differs	80 W	256 W
Power consumption (PowerSave)Known for one	Unknown — not stated by the source	202 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 & dimensions4 differ
WeightDiffers	750 g	2.3 kg
WidthDiffers	240 mm	308 mm
DepthDiffers	147 mm	211 mm
HeightDiffers	59 mm	86 mm
Packaging contentidentical
Remote control included	Yes	Yes
Batteries included	Yes	Yes
Cables includedKnown for one	Unknown — not stated by the source	AC, VGA
Carrying case	Yes	Yes
Manual	Yes	Yes
Quick start guide	Yes	Yes
AC adapter includedKnown 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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