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  3. H6518STi vs H6555AKi

Acer H6518STi vs Acer H6555AKi

What H6518STi does better (2) and where H6555AKi wins (2) — every spec side by side.

Acer H6518STi
Acer · 2020H6518STi
4.5Score
2 advantages≈ US$670
vs
Acer H6555AKi
Acer · 2022H6555AKi
5.5Score
2 advantages≈ US$640
Higher score
3.9Picture5.4
7.7Setup & placement6.6
2.7Noise, lifetime & portability4.0
Dimensions

Size comparison

H6518STiH6555AKi
313 × 100255322 × 91225
H6518STiH6555AKiDifference
Height100 mm91 mm+9 mm
Width313 mm322 mm−9 mm
Depth255 mm225 mm+30 mm
Weight3 kg2.9 kg+0.1 kg

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

Why is H6518STi better than H6555AKi?

  1. Automatic keystone correctionYes · H6555AKi: No
  2. Power consumption290 W vs 309 W+7%

Why is H6555AKi better than H6518STi?

  1. Brightness (ANSI / ISO lumens)3,500 lm vs 4,500 lm+29%
  2. Light source life4,000 h vs 5,000 h+25%
Specifications

Side by side

Acer H6518STiAcer H6518STi≈ US$6704.5
Acer H6555AKiAcer H6555AKi≈ US$6405.5
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 sourceLampLamp
Brightness (ANSI / ISO lumens)3,500 lm4,500 lm
Contrast ratio (dynamic / claimed)10,000:110,000:1
HDR supportNoNo
3D playbackYes—
Gaming
Maximum refresh rate120 Hz120 Hz
Lens & placement
Throw ratio0.5:11.13:1
Throw ratio (zoomed in)—1.46:1
Throw typeShort throw (0.4–1.0:1)Standard throw (1.0:1 and longer)
Distance for a 100″ 16:9 image1.11 m2.5 m
Smallest image size45″31″
Largest image size303″300″
Optical zoom2×2×
Lens shiftNone—
AutofocusNo—
Keystone correctionYesYes
Automatic keystone correctionYesNo
Sound
Built-in speakers (total output)3 W3 W
Smart & streaming
Wi-FiYesYes
Connectivity
HDMI inputs22
USB portYesYes
Ethernet (LAN)NoNo
VGA inputYesNo
Audio outputYesYes
Battery, power & lifetime
Power consumption290 W309 W
Light source life4,000 h5,000 h
Light source life (eco mode)10,000 h10,000 h
Design & noise
Fan noise36 dB—
Fan noise (eco mode)27 dB27 dB
Weight2.95 kg2.9 kg
Width313 mm322 mm
Height100 mm91 mm
Depth255 mm225 mm
ColoursWhiteWhite
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