Product comparison · 2 data projectors

Viewsonic Digital Projector PJ656 vs Viewsonic PJ452 Lightweight Digital Projector

14specifications compared
10differ
4identical
18known for one product only

Key differences

Projector brightness
- Digital Projector PJ656:2100 ANSI lumens
- PJ452 Lightweight Digital Projector:1600 ANSI lumens
Contrast ratio (typical)
- Digital Projector PJ656:400:1
- PJ452 Lightweight Digital Projector:500:1
Lamp power
- Digital Projector PJ656:180 W
- PJ452 Lightweight Digital Projector:165 W
Weight
- Digital Projector PJ656:2.8 kg
- PJ452 Lightweight Digital Projector:2.3 kg
Aspect ratio
- Digital Projector PJ656:4:3
- PJ452 Lightweight Digital Projector:4:3, 16:9
Audio input
- Digital Projector PJ656:3.5mm stereo mini jack
- PJ452 Lightweight Digital Projector:1 x Stereo mini-jack
Audio output
- Digital Projector PJ656:3.5mm stereo mini jack
- PJ452 Lightweight Digital Projector:1 x Stereo mini-jack
Dimensions (WxDxH)
- Digital Projector PJ656:306 x 249 x 97 mm
- PJ452 Lightweight Digital Projector:284.5 x 203.2 x 73.7 mm

Side by side

Differences highlightedShow differences only

Comparison of Digital Projector PJ656, PJ452 Lightweight Digital Projector
32 specifications	A Viewsonic Digital Projector PJ656 View product	B Viewsonic PJ452 Lightweight Digital Projector View product
Projector2 differ
Projector brightnessDiffers	2100 ANSI lumens	1600 ANSI lumens
Contrast ratio (typical)Differs	400:1	500:1
Horizontal scan rangeKnown for one	31 - 106 kHz	Unknown — not stated by the source
Vertical scan rangeKnown for one	56 - 120 Hz	Unknown — not stated by the source
Light source1 differ
Lamp typeKnown for one	UHB	Unknown — not stated by the source
Lamp powerDiffers	180 W	165 W
Lens systemidentical
FocusKnown for one	Manual	Unknown — not stated by the source
Digital zoomKnown for one	1.2x	Unknown — not stated by the source
Throw ratioKnown for one	1.5 - 1.8:1	Unknown — not stated by the source
Featuresidentical
Noise levelKnown for one	38 dB	Unknown — not stated by the source
Multimediaidentical
Number of built-in speakersKnown for one	1	Unknown — not stated by the source
Displayidentical
Display resolutionKnown for one	1600 x 1200 pixels	Unknown — not stated by the source
DisplayKnown for one	Unknown — not stated by the source	LCD
Poweridentical
Power consumption (typical)Known for one	290 W	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	5 - 35 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	10 - 85%	Unknown — not stated by the source
Weight & dimensions1 differ
WeightDiffers	2.8 kg	2.3 kg
Other features6 differ
Aspect ratioDiffers	4:3	4:3, 16:9
Audio inputDiffers	3.5mm stereo mini jack	1 x Stereo mini-jack
Audio outputDiffers	3.5mm stereo mini jack	1 x Stereo mini-jack
Dimensions (WxDxH)Differs	306 x 249 x 97 mm	284.5 x 203.2 x 73.7 mm
Lens systemKnown for one	F1.7 - 1.9, f=18.9 - 22.6	Unknown — not stated by the source
Power requirementsKnown for one	AC 100 - 120 / 200 - 240 V, 50 / 60Hz	Unknown — not stated by the source
Video inDiffers	RCA jack	RGB analog, NTSCM, NTSC 4.43, PAL, SECAM
Digital keystone correctionKnown for one	± 15°	Unknown — not stated by the source
I/O portsDiffers	RGB-PC In(15-pin mini D-sub (x2)) / Out(15-pin mini D-sub), RCA jack (set), USB, 9-pin D-sub RS-232	RGB input 15-pin HD, 1 x D-sub cable; 1 x RGB output; 1 x Composite Video InputRCA jack; Component Video InputVGA DB-15 to HDTV; 1 x S-Video InputMini-DIN 4-pin; Audio InputStereo mini-jack (1 input, 1 output)
Videoidentical
Full HDKnown for one	Unknown — not stated by the source	Yes
Packaging contentidentical
Remote control includedKnown for one	Unknown — not stated by the source	Yes

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.

More data projector comparisons

All data projector comparisons