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  3. UHZ35ST vs X2-4K

Optoma UHZ35ST vs ViewSonic X2-4K

What UHZ35ST does better (6) and where X2-4K wins (2) — every spec side by side.

Optoma UHZ35ST
Optoma · 2023UHZ35ST
9.1Score
6 advantages≈ US$1,850
Higher score
vs
ViewSonic X2-4K
ViewSonic · 2023X2-4K
8.5Score
2 advantages≈ US$1,950
8.0Picture6.4
8.9Gaming & inputs9.2
4.3Setup & placement6.8
8.8Noise, lifetime & portability6.7
Dimensions

Size comparison

UHZ35STX2-4K
274 × 114216355 × 121244
UHZ35STX2-4KDifference
Height114 mm121 mm−7 mm
Width274 mm355 mm−81 mm
Depth216 mm244 mm−28 mm
Weight3 kg3.6 kg−0.6 kg

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

Why is UHZ35ST better than X2-4K?

  1. Brightness (ANSI / ISO lumens)3,500 lm vs 2,150 lm+63%
  2. Built-in speakers (total output)15 W vs 12 W+25%
  3. Largest image size300″ vs 150″2×
  4. Fan noise30 dB vs 33 dB+10%
  5. Power consumption185 W vs 236 W+28%
  6. Weight3 kg vs 3.6 kg+20%

Why is X2-4K better than UHZ35ST?

  1. Lens shiftNone vs Vertical
  2. Contrast ratio (dynamic / claimed)500,000:1 vs 3,000,000:16×
Specifications

Side by side

Optoma UHZ35STOptoma UHZ35ST≈ US$1,8509.1
ViewSonic X2-4KViewSonic X2-4K≈ US$1,9508.5
Picture
Resolution (on screen)3840 × 2160 (4K UHD)3840 × 2160 (4K UHD)
Native panel resolution1920 × 1080 (Full HD)1920 × 1080 (Full HD)
4K method4K by pixel shifting4K by pixel shifting
Display technologyDLPDLP
Light sourceLaserLED
Brightness (ANSI / ISO lumens)3,500 lm2,150 lm
Contrast ratio (dynamic / claimed)500,000:13,000,000:1
HDR supportYesYes
3D playbackYes—
Gaming
Maximum refresh rate240 Hz240 Hz
Game / low-latency mode—Yes
Lens & placement
Throw ratio0.5:10.69:1
Throw ratio (zoomed in)—0.83:1
Throw typeShort throw (0.4–1.0:1)Short throw (0.4–1.0:1)
Distance for a 100″ 16:9 image1.11 m1.53 m
Smallest image size36″60″
Largest image size300″150″
Optical zoom—2×
Lens shiftNoneVertical
Keystone correctionYesYes
Automatic keystone correctionNoNo
Sound
Built-in speakers (total output)15 W12 W
Smart & streaming
Built-in smart platform—Yes
Wi-FiYesYes
Bluetooth—Yes
Internal storage—16 GB
Connectivity
HDMI inputs22
HDMI version22
HDMI eARCYes—
USB portYesYes
Ethernet (LAN)NoNo
VGA inputNoNo
Audio outputYesYes
Battery, power & lifetime
Power consumption185 W236 W
Light source life30,000 h30,000 h
Design & noise
Fan noise30 dB33 dB
Fan noise (eco mode)28 dB29 dB
Weight3 kg3.6 kg
Width274 mm355 mm
Height114 mm121 mm
Depth216 mm244 mm
ColoursWhiteBlack
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