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  3. HL6511i vs HZ41HDR

Acer HL6511i vs Optoma HZ41HDR

What HL6511i does better (1) and where HZ41HDR wins (5) — every spec side by side.

Acer HL6511i
Acer · 2026HL6511i
6.8Score
1 advantage≈ US$810
Higher score
vs
Optoma HZ41HDR
Optoma · 2026HZ41HDR
5 advantages≈ US$860
7.1Picture7.6
Dimensions

Size comparison

HL6511iHZ41HDR
286 × 216115274 × 114216
HL6511iHZ41HDRDifference
Height216 mm114 mm+102 mm
Width286 mm274 mm+12 mm
Depth115 mm216 mm−101 mm
Weight3.4 kg2.9 kg+0.5 kg

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

Why is HL6511i better than HZ41HDR?

  1. Contrast ratio (dynamic / claimed)3,500,000:1 vs 2,500,000:1+40%

Why is HZ41HDR better than HL6511i?

  1. Brightness (ANSI / ISO lumens)4,000 lm vs 4,400 lm+10%
  2. Built-in speakers (total output)10 W vs 15 W+50%
  3. Light source life20,000 h vs 30,000 h+50%
  4. Ethernet (LAN)No · HL6511i: Yes
  5. Weight3.4 kg vs 2.9 kg+17%
Specifications

Side by side

Acer HL6511iAcer HL6511i≈ US$8106.8
Optoma HZ41HDROptoma HZ41HDR≈ US$860
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 sourceLaserLaser
Brightness (ANSI / ISO lumens)4,000 lm4,400 lm
Contrast ratio (dynamic / claimed)3,500,000:12,500,000:1
HDR supportYes—
Gaming
Maximum refresh rate—120 Hz
Lens & placement
Throw ratio1.5:11.48:1
Throw ratio (zoomed in)1.65:11.62:1
Throw typeStandard throw (1.0:1 and longer)Standard throw (1.0:1 and longer)
Distance for a 100″ 16:9 image3.32 m3.28 m
Smallest image size30″30″
Largest image size300″300″
Lens shiftNone—
AutofocusNo—
Keystone correctionYes—
Automatic keystone correctionNo—
Sound
Built-in speakers (total output)10 W15 W
Smart & streaming
Wi-FiYes—
Connectivity
HDMI inputs22
HDMI version22
USB portYesYes
Ethernet (LAN)NoYes
VGA inputNoYes
Audio outputYesYes
Battery, power & lifetime
Power consumption195 W—
Light source life20,000 h30,000 h
Light source life (eco mode)30,000 h—
Design & noise
Fan noise (eco mode)28 dB—
Weight3.4 kg2.9 kg
Width286 mm274 mm
Height216 mm114 mm
Depth115 mm216 mm
ColoursWhiteBlack
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