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  3. UZ38X vs LS630HD

Optoma UZ38X vs ViewSonic LS630HD

What UZ38X does better (3) and where LS630HD wins (5) — every spec side by side.

Optoma UZ38X
Optoma · 2026UZ38X
7.9Score
3 advantages≈ US$1,050
Higher score
vs
ViewSonic LS630HD
ViewSonic · 2025LS630HD
6.5Score
5 advantages≈ US$1,050
8.6Picture5.1
4.6Setup & placement6.0
6.4Noise, lifetime & portability6.3
Dimensions

Size comparison

UZ38XLS630HD
238 × 130215286 × 129216
UZ38XLS630HDDifference
Height130 mm129 mm+1 mm
Width238 mm286 mm−48 mm
Depth215 mm216 mm−1 mm
Weight3.4 kg3 kg+0.4 kg

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

Why is UZ38X better than LS630HD?

  1. Resolution (on screen)3840 × 2160 (4K UHD) vs 1920 × 1080 (Full HD)
  2. Light source life30,000 h vs 20,000 h+50%
  3. Contrast ratio (dynamic / claimed)1,500,000:1 vs 300,000:15×

Why is LS630HD better than UZ38X?

  1. Brightness (ANSI / ISO lumens)3,800 lm vs 4,000 lm+5%
  2. Ethernet (LAN)No · UZ38X: Yes
  3. Fan noise33 dB vs 32 dB+3%
  4. Optical zoom1.3× vs 2×+54%
  5. Weight3.4 kg vs 3 kg+13%
Specifications

Side by side

Optoma UZ38XOptoma UZ38X≈ US$1,0507.9
ViewSonic LS630HDViewSonic LS630HD≈ US$1,0506.5
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 sourceLaserLaser
Brightness (ANSI / ISO lumens)3,800 lm4,000 lm
Contrast ratio (dynamic / claimed)1,500,000:1300,000:1
HDR support—No
3D playback—Yes
Gaming
Maximum refresh rate—120 Hz
Lens & placement
Throw ratio1.21:11.13:1
Throw ratio (zoomed in)1.59:11.47:1
Throw typeStandard throw (1.0:1 and longer)Standard throw (1.0:1 and longer)
Distance for a 100″ 16:9 image2.68 m2.5 m
Smallest image size28″30″
Largest image size300″300″
Optical zoom1.3×2×
Lens shift—None
Keystone correctionYesYes
Automatic keystone correctionNoNo
Sound
Built-in speakers (total output)15 W15 W
Smart & streaming
Wi-Fi—Yes
Connectivity
HDMI inputs22
HDMI version2—
USB portYesYes
Ethernet (LAN)NoYes
VGA inputNoNo
Audio outputYesYes
Battery, power & lifetime
Power consumption—175 W
Light source life30,000 h20,000 h
Light source life (eco mode)—30,000 h
Design & noise
Fan noise33 dB32 dB
Fan noise (eco mode)28 dB27 dB
Weight3.4 kg3 kg
Width238 mm286 mm
Height130 mm129 mm
Depth215 mm216 mm
ColoursBlackWhite
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