LG C4 OLED 55 vs Samsung S90D OLED 55
Verdict: Samsung S90D wins on value with a $400 lower MSRP while matching 144Hz and 4K OLED performance. LG C4 leads in confirmed HDMI 2.1 count and AI processor per provided specs. Both trail 2025 models like LG C5 and Samsung S95F in current generation data.
LG C4 OLED 55 lists at $1,999 while Samsung S90D OLED 55 lists at $1,599 — Samsung S90D OLED 55 undercuts LG C4 OLED 55 by $400 (25%).
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 55 | Samsung S90D OLED 55 | |
|---|---|---|
| Screen Size | 55-inch | 55-inch |
| Panel Type | OLED evo | QD-OLED |
| Refresh Rate | 144Hz | 144Hz |
| Smart OS | webOS | Tizen |
LG C4 OLED 55
What works
- Gen5 AI Processor for enhanced processing
- Four HDMI 2.1 ports
- 144Hz refresh rate
What doesn't
- Higher MSRP than competitor
- Standard OLED brightness limits in very bright rooms
Samsung S90D OLED 55
What works
- QD-OLED panel for vibrant colors
- Lower MSRP
- Dolby Atmos and HDR+ support
What doesn't
- Fewer confirmed HDMI 2.1 details in specs
- AI upscaling may vary by content
Bottom line
Our pick: Samsung S90D OLED 55.
View full comparison on GoodPickr
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