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  3. HZ151X vs UZ38X

Optoma HZ151X vs Optoma UZ38X

What HZ151X does better (3) and where UZ38X wins (1) — every spec side by side.

Optoma HZ151X
Optoma · 2026HZ151X
7.4Score
3 advantages≈ US$1,000
vs
Optoma UZ38X
Optoma · 2026UZ38X
7.9Score
1 advantage≈ US$1,050
Higher score
8.0Picture8.6
3.9Setup & placement4.6
Dimensions

Size comparison

HZ151XUZ38X
274 × 108216238 × 130215
HZ151XUZ38XDifference
Height108 mm130 mm−22 mm
Width274 mm238 mm+36 mm
Depth216 mm215 mm+1 mm
Weight3.4 kg3.4 kg=

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

Why is HZ151X better than UZ38X?

  1. Brightness (ANSI / ISO lumens)5,000 lm vs 3,800 lm+32%
  2. Ethernet (LAN)Yes · UZ38X: No
  3. Contrast ratio (dynamic / claimed)2,000,000:1 vs 1,500,000:1+33%

Why is UZ38X better than HZ151X?

  1. Resolution (on screen)1920 × 1080 (Full HD) vs 3840 × 2160 (4K UHD)
Specifications

Side by side

Optoma HZ151XOptoma HZ151X≈ US$1,0007.4
Optoma UZ38XOptoma UZ38X≈ US$1,0507.9
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 sourceLaserLaser
Brightness (ANSI / ISO lumens)5,000 lm3,800 lm
Contrast ratio (dynamic / claimed)2,000,000:11,500,000:1
HDR supportYes—
HDR formatsHDR10+, HDR10—
3D playbackYes—
Lens & placement
Throw ratio1.13:11.21:1
Throw ratio (zoomed in)1.47:11.59:1
Throw typeStandard throw (1.0:1 and longer)Standard throw (1.0:1 and longer)
Distance for a 100″ 16:9 image2.5 m2.68 m
Smallest image size39″28″
Largest image size300″300″
Optical zoom1.3×1.3×
Lens shiftNone—
Keystone correctionYesYes
Automatic keystone correctionNoNo
Sound
Built-in speakers (total output)15 W15 W
Connectivity
HDMI inputs22
HDMI version22
USB portYesYes
Ethernet (LAN)YesNo
VGA inputYesNo
Audio outputYesYes
Battery, power & lifetime
Light source life30,000 h30,000 h
Design & noise
Fan noise—33 dB
Fan noise (eco mode)29 dB28 dB
Weight3.4 kg3.4 kg
Width274 mm238 mm
Height108 mm130 mm
Depth216 mm215 mm
ColoursWhiteBlack
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