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  3. H6815P vs LSD400HD

Acer H6815P vs ViewSonic LSD400HD

What H6815P does better (2) and where LSD400HD wins (3) — every spec side by side.

Acer H6815P
Acer · 2023H6815P
7.6Score
2 advantages≈ US$700
vs
ViewSonic LSD400HD
ViewSonic · 2026LSD400HD
8.0Score
3 advantages≈ US$800
Higher score
8.3Picture7.7
4.9Setup & placement4.3
8.2Noise, lifetime & portability7.8
Dimensions

Size comparison

H6815PLSD400HD
313 × 114240280 × 129216
H6815PLSD400HDDifference
Height114 mm129 mm−15 mm
Width313 mm280 mm+33 mm
Depth240 mm216 mm+24 mm
Weight3.1 kg3 kg+0.1 kg

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

Why is H6815P better than LSD400HD?

  1. Resolution (on screen)3840 × 2160 (4K UHD) vs 1920 × 1080 (Full HD)
  2. Fan noise26 dB vs 32 dB+23%

Why is LSD400HD better than H6815P?

  1. Brightness (ANSI / ISO lumens)4,000 lm vs 4,400 lm+10%
  2. Contrast ratio (dynamic / claimed)10,000:1 vs 3,000,000:1300×
  3. Weight3.1 kg vs 3 kg+3%
Specifications

Side by side

Acer H6815PAcer H6815P≈ US$7007.6
ViewSonic LSD400HDViewSonic LSD400HD≈ US$8008.0
Picture
Resolution (on screen)3840 × 2160 (4K UHD)1920 × 1080 (Full HD)
Native panel resolution1920 × 1080 (Full HD)1920 × 1080 (Full HD)
4K method4K by pixel shifting—
Display technologyDLPDLP
Light sourceLampLaser
Brightness (ANSI / ISO lumens)4,000 lm4,400 lm
Contrast ratio (dynamic / claimed)10,000:13,000,000:1
HDR supportYes—
HDR formatsHDR10—
3D playbackYes—
Gaming
Maximum refresh rate120 Hz120 Hz
Lens & placement
Throw ratio1.5:11.48:1
Throw ratio (zoomed in)1.66:11.62:1
Throw typeStandard throw (1.0:1 and longer)Standard throw (1.0:1 and longer)
Distance for a 100″ 16:9 image3.32 m3.28 m
Smallest image size28″30″
Largest image size300″300″
Optical zoom2×—
Lens shiftNoneNone
AutofocusNo—
Keystone correctionYesYes
Automatic keystone correctionNoNo
Sound
Built-in speakers (total output)10 W—
Smart & streaming
Smart platformAndroid (not TV-certified)—
Built-in smart platformYes—
Wi-FiYes—
Connectivity
HDMI inputs22
HDMI version22
USB portYesYes
Ethernet (LAN)NoNo
VGA inputYesNo
Audio outputYesYes
Battery, power & lifetime
Power consumption310 W—
Light source life—30,000 h
Light source life (eco mode)—20,000 h
Design & noise
Fan noise26 dB32 dB
Fan noise (eco mode)26 dB27 dB
Weight3.1 kg3 kg
Width313 mm280 mm
Height114 mm129 mm
Depth240 mm216 mm
ColoursWhiteWhite
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