How we score Blog Advertise
  1. Attenborough.film
  2. Compare
  3. H6828BD vs LSD400W

Acer H6828BD vs ViewSonic LSD400W

What H6828BD does better (3) and where LSD400W wins (3) — every spec side by side.

Acer H6828BD
Acer · 2026H6828BD
8.7Score
3 advantages≈ US$680
Higher score
vs
ViewSonic LSD400W
ViewSonic · 2026LSD400W
7.8Score
3 advantages≈ US$570
8.8Picture6.8
8.5Setup & placement6.6
4.5Noise, lifetime & portability6.5
Dimensions

Size comparison

H6828BDLSD400W
322 × 94225286 × 129216
H6828BDLSD400WDifference
Height94 mm129 mm−35 mm
Width322 mm286 mm+36 mm
Depth225 mm216 mm+9 mm
Weight2.9 kg3.1 kg−0.2 kg

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

Why is H6828BD better than LSD400W?

  1. Resolution (on screen)3840 × 2160 (4K UHD) vs 1920 × 1080 (Full HD)
  2. Automatic keystone correctionYes · LSD400W: No
  3. Weight2.88 kg vs 3.1 kg+8%

Why is LSD400W better than H6828BD?

  1. Light source life5,000 h vs 20,000 h4×
  2. Contrast ratio (dynamic / claimed)50,000:1 vs 3,000,000:160×
  3. Fan noise33 dB vs 30 dB+10%
Specifications

Side by side

Acer H6828BDAcer H6828BD≈ US$6808.7
ViewSonic LSD400WViewSonic LSD400W≈ US$5707.8
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 source—Laser
Brightness (ANSI / ISO lumens)4,000 lm4,000 lm
Contrast ratio (dynamic / claimed)50,000:13,000,000:1
HDR supportYes—
3D playbackYes—
Gaming
Maximum refresh rate240 Hz—
Lens & placement
Throw ratio1.5:1—
Throw ratio (zoomed in)1.65:1—
Throw typeStandard throw (1.0:1 and longer)—
Distance for a 100″ 16:9 image3.32 m—
Smallest image size27″—
Largest image size300″300″
Optical zoom2×2×
Lens shiftNone—
Keystone correctionYesYes
Automatic keystone correctionYesNo
Sound
Built-in speakers (total output)3 W—
Connectivity
HDMI inputs22
HDMI version1.41.4
USB portYesYes
Ethernet (LAN)NoNo
VGA inputNoNo
Audio outputYesYes
Battery, power & lifetime
Power consumption245 W—
Light source life5,000 h20,000 h
Light source life (eco mode)10,000 h30,000 h
Design & noise
Fan noise33 dB30 dB
Fan noise (eco mode)30 dB25 dB
Weight2.88 kg3.1 kg
Width322 mm286 mm
Height94 mm129 mm
Depth225 mm216 mm
ColoursWhiteWhite
To compare: 0up to 4 models
Compare