LG C4 OLED 55 vs Samsung S90D OLED 55

By Billy G. · Founder & Lead EditorVerified Jun 13 by Billy G.

LG C4 OLED 55
LG C4 OLED 55
Samsung S90D OLED 55
Samsung S90D OLED 55
Verified Confidence: 86%

Verdict: The Samsung S90D OLED 55 outperforms the LG C4 OLED 55 in brightness (1400 nits vs 800 nits per RTINGS) and motion clarity with its 144Hz panel, making it the stronger pick for bright rooms and gaming. The LG C4 counters with native Dolby Vision support and a more polished webOS interface. Both are 2024 models now superseded by 2025 lines like the LG C5 and Samsung S95F.

Winner: Samsung S90D OLED 55

LG C4 OLED 55: 7.5/10

Samsung S90D OLED 55: 8/10

Spec-by-spec comparison

LG C4 OLED 55Samsung S90D OLED 55
Screen Size55 inches55 inches
Panel TypeWOLEDQD-OLED
Refresh Rate120Hz144Hz
HDR FormatsDolby Vision, HDR10, HLGHDR10+, HLG

LG C4 OLED 55

What works

  • Excellent Dolby Vision support with 120Hz panel
  • Strong webOS smart platform with Magic Remote
  • Accurate color reproduction out of box (per RTINGS)

What doesn't

  • Lower peak brightness than QD-OLED rivals at 800 nits (per RTINGS)
  • Only 120Hz native refresh rate

Samsung S90D OLED 55

What works

  • Higher peak brightness up to 1400 nits in HDR (per RTINGS)
  • 144Hz refresh rate with superior motion handling
  • Vivid color volume from QD-OLED panel (per RTINGS)

What doesn't

  • No Dolby Vision support, relies on HDR10+
  • Tizen OS less intuitive for some users than webOS

Bottom line

Our pick: Samsung S90D OLED 55.

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