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  3. H6541BDi vs 4K400x

Acer H6541BDi vs Optoma 4K400x

What H6541BDi does better (2) and where 4K400x wins (4) — every spec side by side.

Acer H6541BDi
Acer · 2020H6541BDi
4.1Score
2 advantages
vs
Optoma 4K400x
Optoma · 20224K400x
6.5Score
4 advantages≈ US$1,350
Higher score
4.4Picture8.7
4.9Setup & placement4.3
2.8Noise, lifetime & portability4.7
Dimensions

Size comparison

H6541BDi4K400x
313 × 114240315 × 118270
H6541BDi4K400xDifference
Height114 mm118 mm−4 mm
Width313 mm315 mm−2 mm
Depth240 mm270 mm−30 mm
Weight2.9 kg3.5 kg−0.6 kg

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

Why is H6541BDi better than 4K400x?

  1. Weight2.9 kg vs 3.5 kg+21%
  2. Power consumption290 W vs 305 W+5%

Why is 4K400x better than H6541BDi?

  1. Resolution (on screen)1920 × 1080 (Full HD) vs 3840 × 2160 (4K UHD)
  2. Contrast ratio (dynamic / claimed)10,000:1 vs 1,000,000:1100×
  3. Fan noise36 dB vs 28 dB+29%
  4. HDR supportNo · H6541BDi: Yes
Specifications

Side by side

Optoma 4K400xOptoma 4K400x≈ US$1,3506.5
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 sourceLamp—
Brightness (ANSI / ISO lumens)4,000 lm4,000 lm
Contrast ratio (dynamic / claimed)10,000:11,000,000:1
HDR supportNoYes
Motion interpolation (MEMC)—Yes
3D playbackYesYes
Gaming
Maximum refresh rate120 Hz120 Hz
Game / low-latency mode—Yes
Lens & placement
Throw ratio1.5:11.5:1
Throw ratio (zoomed in)1.66:11.66:1
Throw typeStandard throw (1.0:1 and longer)Standard throw (1.0:1 and longer)
Distance for a 100″ 16:9 image3.32 m3.32 m
Smallest image size27″33″
Largest image size300″300″
Optical zoom2×—
Lens shiftNoneNone
AutofocusNo—
Keystone correctionYesYes
Automatic keystone correctionNoNo
Sound
Built-in speakers (total output)10 W10 W
Connectivity
HDMI inputs22
HDMI version—2
USB portYesYes
Ethernet (LAN)NoNo
VGA inputYesNo
Audio outputYesYes
Battery, power & lifetime
Power consumption290 W305 W
Light source life4,000 h4,000 h
Light source life (eco mode)10,000 h15,000 h
Design & noise
Fan noise36 dB28 dB
Fan noise (eco mode)27 dB26 dB
Weight2.9 kg3.5 kg
Width313 mm315 mm
Height114 mm118 mm
Depth240 mm270 mm
ColoursWhiteWhite
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