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  3. HL6521G vs HZ151X

Acer HL6521G vs Optoma HZ151X

What HL6521G does better (0) and where HZ151X wins (5) — every spec side by side.

Acer HL6521G
Acer · 2026HL6521G
0 advantages≈ US$830
vs
Optoma HZ151X
Optoma · 2026HZ151X
7.4Score
5 advantages≈ US$1,000
Higher score
5.8Picture8.0

Why is HL6521G better than HZ151X?

HL6521G has no measurable advantages in this pair.

Why is HZ151X better than HL6521G?

  1. Light source life4,000 h vs 30,000 h7.5×
  2. Brightness (ANSI / ISO lumens)4,000 lm vs 5,000 lm+25%
  3. HDMI inputs1 vs 22×
  4. Ethernet (LAN)No · HL6521G: Yes
  5. Audio outputNo · HL6521G: Yes
Specifications

Side by side

Acer HL6521GAcer HL6521G≈ US$830
Optoma HZ151XOptoma HZ151X≈ US$1,0007.4
Picture
Resolution (on screen)1920 × 1080 (Full HD)1920 × 1080 (Full HD)
Native panel resolution1920 × 1080 (Full HD)1920 × 1080 (Full HD)
Display technologyDLPDLP
Light source—Laser
Brightness (ANSI / ISO lumens)4,000 lm5,000 lm
Contrast ratio (dynamic / claimed)—2,000,000:1
HDR support—Yes
HDR formats—HDR10+, HDR10
3D playback—Yes
Lens & placement
Throw ratio—1.13:1
Throw ratio (zoomed in)—1.47:1
Throw type—Standard throw (1.0:1 and longer)
Distance for a 100″ 16:9 image—2.5 m
Smallest image size—39″
Largest image size—300″
Optical zoom—1.3×
Lens shift—None
Keystone correction—Yes
Automatic keystone correction—No
Sound
Built-in speakers (total output)—15 W
Connectivity
HDMI inputs12
HDMI version—2
USB portNoYes
Ethernet (LAN)NoYes
VGA inputNoYes
Audio outputNoYes
Battery, power & lifetime
Light source life4,000 h30,000 h
Design & noise
Fan noise (eco mode)—29 dB
Weight—3.4 kg
Width—274 mm
Height—108 mm
Depth—216 mm
ColoursWhiteWhite
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