LG G4 77" vs Samsung S90C 55" (4K OLED)
The Verdict
Both TVs deliver exceptional OLED picture quality, but serve different needs. LG's 77" G4 features superior brightness at 2100 nits with MLA technology, delivering more vivid HDR performance and better handling of bright rooms,crucial for larger screens. Samsung's 55" S90C uses QD-OLED with 1300 nits brightness, excelling in contrast and color accuracy for darker viewing environments. Gaming performance favors LG with 1ms input lag versus Samsung's 6ms, plus its 4.2ch speaker system outclasses Samsung's 2.1ch audio. However, Samsung's massive size advantage and $1700 price difference demand consideration; you're paying nearly double for an extra 22 inches. Samsung's Wi-Fi 6 connectivity and superior processor in LG don't dramatically impact real-world use. For serious gamers or those wanting truly immersive 77" home theater, LG G4 justifies the premium. For value-conscious buyers wanting excellent OLED in a practical size, Samsung S90C is the smarter purchase.
Who Should Buy
Buy the LG G4 77" if…
- →MLA panel pushes OLED brightness to 2,100+ nits — closes the gap with Mini-LED
- →α11 AI processor is LG's most powerful, with superior upscaling and AI enhancements
- →Gallery design meant to hang flush to the wall with no gap
Buy the Samsung S90C 55" (4K OLED) if…
- →QD-OLED at $1,599 is the most affordable OLED with quantum dot color
- →Infinite contrast ratio with perfect black levels
- →144Hz with VRR — excellent for PS5 and Xbox Series X gaming
Category Scores
Pros & Cons
LG G4 77"
Pros
- MLA panel pushes OLED brightness to 2,100+ nits — closes the gap with Mini-LED
- α11 AI processor is LG's most powerful, with superior upscaling and AI enhancements
- Gallery design meant to hang flush to the wall with no gap
- 77-inch screen delivers an immersive cinematic experience at typical viewing distances
- Best overall OLED picture quality available in a consumer TV as of 2024
Cons
- At $3,299 it is a very significant investment compared to the C4
- Gallery design requires flush wall mounting — stand sold separately
- Still susceptible to OLED burn-in with prolonged static imagery
- 77 inches is too large for many rooms and viewing distances under 10 feet
Samsung S90C 55" (4K OLED)
Pros
- QD-OLED at $1,599 is the most affordable OLED with quantum dot color
- Infinite contrast ratio with perfect black levels
- 144Hz with VRR — excellent for PS5 and Xbox Series X gaming
- Vivid, wide color gamut coverage exceeds traditional WOLED
- Ultra-slim panel at 0.4 inches looks stunning mounted
Cons
- 55-inch S90C uses a different (WOLED) panel in some regions — verify before buying
- No Dolby Vision support
- 40W audio is weaker than the S95C — soundbar recommended
- Wi-Fi 5 only on the 55-inch model
Full Specifications
| Spec | LG G4 77" | Samsung S90C 55" (4K OLED) |
|---|---|---|
| Body | ||
| VESA mount | 400 x 200mm | 300 x 300mm |
| Weight | 73.4 lbs | 33.5 lbs |
| Dimensions (w/ stand) | 68.0 x 43.1 x 12.8 inches | 48.2 x 30.2 x 9.3 inches |
| Dimensions | — | 48.2 x 27.7 x 0.4 inches |
| Audio | ||
| Output (watts) | 60 | 40 |
| Speakers | 4.2ch | 2.1ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 1 | 6 |
| Display | ||
| HDR | Dolby Vision IQ, HDR10, HLG, Filmmaker Mode | Quantum HDR OLED, HDR10+, HLG |
| Size | 77" | 55" |
| Type | OLED evo MLA (Micro Lens Array) | QD-OLED |
| Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K) |
| Refresh rate | 120Hz | 120Hz (144Hz via Game Mode) |
| Brightness (nits) | 2100 | 1300 |
| Smart TV | ||
| Os | webOS 24 | Tizen OS |
| Voice assistant | ThinQ AI, Alexa, Google Assistant | Bixby, Alexa, Google Assistant |
| Processor | ||
| Chipset | α11 AI Processor 4K | — |
| Connectivity | ||
| Wi-Fi | Wi-Fi 6 (802.11ax) | Wi-Fi 5 |
| Ethernet | ||
| Bluetooth | 5.0 | 5.2 |
| USB ports | 3 | 2 |
| HDMI ports | 4 | 4 |
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This comparison is based on verified manufacturer specifications covering display, performance, camera, battery, and build quality. Scores are generated by analyzing specs across weighted categories on a 10-point scale. Learn more about our methodology.
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