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LG B4 OLED 55" — OLED · 55" · 2024
LG

LG B4 OLED 55"

OLED · 55" · 2024

88
/ 100
From $1,999
VS
LG CX OLED 43" — OLED · 43" · 2020
LG

LG CX OLED 43"

OLED · 43" · 2020

88
/ 100
From $1,279
Specdex verdict

Dead heat — it comes down to priorities.

In our weighted Specdex score, LG B4 OLED 55" lands at 88 and LG CX OLED 43" at 88. With scores tied, the decision hinges on which sub-scores matter most to you.

Pick LG B4 OLED 55" if…

  • ✓Strong HDR performance
  • ✓Current smart platform
  • ✓HDMI 2.1 on most HDMI ports

Pick LG CX OLED 43" if…

  • ✓Mature firmware by now
  • ✓Often discounted on close-out
  • ✓Current smart platform
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Winner by scenario

Derived from the sub-score breakdown · not a separate test

Picture quality

Tie

Panel, processing, and HDR performance

Effectively tied — neither pulls a 2-point weighted lead.

Gaming

Tie

Input lag, VRR, 120 Hz support

Effectively tied — neither pulls a 2-point weighted lead.

Smart platform

LG B4 OLED 55"

OS speed, app support, ecosystem

LG B4 OLED 55" leads on smart (82 vs 78).

Value for money

LG CX OLED 43"

Specdex score per dollar at MSRP

LG CX OLED 43" more score per dollar ($1,279 vs $1,999).

LG B4 OLED 55" 88
vs
88 LG CX OLED 43"

Score breakdown

LG B4 OLED 55"
88
picture 88
motion 86
gaming 84
smart 82
sound 78
LG CX OLED 43"
88
picture 88
motion 85
gaming 83
smart 78
sound 76

Specs side-by-side

LG B4 OLED 55" versus LG CX OLED 43" — full spec comparison
Spec LG B4 OLED 55" LG CX OLED 43"
Panel
OLED
OLED
Size
55"
43"
Refresh
120Hz
—
Release year
2024
2020

LG B4 OLED 55"

Pros
  • +Strong HDR performance
  • +Current smart platform
  • +HDMI 2.1 on most HDMI ports
Cons
  • −Ads on smart platform
  • −Sound trails dedicated audio
  • −Large footprint

LG CX OLED 43"

Pros
  • +Mature firmware by now
  • +Often discounted on close-out
  • +Current smart platform
Cons
  • −Superseded by newer models
  • −HDR peak lower than new mini-LED
  • −Platform ads

FAQ: LG B4 OLED 55" vs LG CX OLED 43"

Which is better, LG B4 OLED 55" or LG CX OLED 43"? +

Both score 88 on our weighted rubric — tied. Your best pick depends on the sub-scores above.

Is LG B4 OLED 55" worth the price? +

At $1,999, LG B4 OLED 55" delivers a Specdex score of 88 — strongest in picture.

Is LG CX OLED 43" worth the price? +

At $1,279, LG CX OLED 43" delivers a Specdex score of 88 — strongest in picture.

Does LG B4 OLED 55" or LG CX OLED 43" last longer? +

Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.

Which is better for smart platform, LG B4 OLED 55" or LG CX OLED 43"? +

LG B4 OLED 55" — leads on smart (82 vs 78). OS speed, app support, ecosystem.

Which is the better value, LG B4 OLED 55" or LG CX OLED 43"? +

LG CX OLED 43" — more score per dollar ($1,279 vs $1,999). Specdex score per dollar at MSRP.