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  3. INL156 vs 4K400STx

InFocus INL156 vs Optoma 4K400STx

What INL156 does better (4) and where 4K400STx wins (5) — every spec side by side.

InFocus INL156
InFocus · 2023INL156
6.1Score
4 advantages
vs
Optoma 4K400STx
Optoma · 20234K400STx
6.3Score
5 advantages≈ US$2,100
Higher score
4.4Picture8.7
2.6Setup & placement4.3
8.5Noise, lifetime & portability4.1
Dimensions

Size comparison

INL1564K400STx
337 × 265119315 × 118270
INL1564K400STxDifference
Height265 mm118 mm+147 mm
Width337 mm315 mm+22 mm
Depth119 mm270 mm−151 mm
Weight3.9 kg3.9 kg=

Drawn to the same scale from the official dimensions (front and side).

Why is INL156 better than 4K400STx?

  1. Light source life30,000 h vs 4,000 h7.5×
  2. Built-in speakers (total output)15 W vs 10 W+50%
  3. Contrast ratio (dynamic / claimed)2,000,000:1 vs 1,000,000:12×
  4. Power consumption161 W vs 320 W+99%

Why is 4K400STx better than INL156?

  1. Resolution (on screen)1920 × 1080 (Full HD) vs 3840 × 2160 (4K UHD)
  2. Brightness (ANSI / ISO lumens)3,500 lm vs 4,000 lm+14%
  3. HDR supportNo · INL156: Yes
  4. Fan noise30 dB vs 28 dB+7%
  5. HDMI version1.4 vs 2+43%
Specifications

Side by side

Optoma 4K400STxOptoma 4K400STx≈ US$2,1006.3
Picture
Resolution (on screen)1920 × 1080 (Full HD)3840 × 2160 (4K UHD)
Native panel resolution1920 × 1080 (Full HD)1920 × 1080 (Full HD)
4K method—4K by pixel shifting
Display technologyDLPDLP
Light sourceLaser—
Brightness (ANSI / ISO lumens)3,500 lm4,000 lm
Contrast ratio (dynamic / claimed)2,000,000:11,000,000:1
HDR supportNoYes
Motion interpolation (MEMC)—Yes
3D playback—Yes
Gaming
Maximum refresh rate120 Hz120 Hz
Game / low-latency mode—Yes
Lens & placement
Throw ratio1.19:10.5:1
Throw ratio (zoomed in)1.54:1—
Throw typeStandard throw (1.0:1 and longer)Short throw (0.4–1.0:1)
Distance for a 100″ 16:9 image2.63 m1.11 m
Smallest image size—33″
Largest image size—300″
Lens shiftNoneNone
AutofocusNo—
Keystone correctionYesYes
Automatic keystone correctionNoNo
Sound
Built-in speakers (total output)15 W10 W
Connectivity
HDMI inputs22
HDMI version1.42
USB portYesYes
Ethernet (LAN)NoNo
VGA inputYesNo
Audio outputYesYes
Battery, power & lifetime
Power consumption161 W320 W
Light source life30,000 h4,000 h
Light source life (eco mode)—15,000 h
Design & noise
Fan noise30 dB28 dB
Fan noise (eco mode)—24 dB
Weight3.9 kg3.9 kg
Width337 mm315 mm
Height265 mm118 mm
Depth119 mm270 mm
ColoursWhiteWhite
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