Samsung S90C 55" (4K OLED) vs Sony X85K 65" (LED)
The Verdict
Samsung's S90C leverages QD-OLED technology with 1300 nits peak brightness and perfect black levels that the Sony X85K's Direct LED panel cannot match. Picture quality is exceptional with superior contrast, color accuracy, and viewing angles across the board. Gaming advantages favor Samsung with 6ms input lag versus Sony's 10ms, plus 144Hz Game Mode support. Audio output doubles at 40 watts with 2.1 channels and Atmos support versus Sony's 20-watt 2.0 setup. Sony counters with a larger 65-inch screen, Google TV integration, and aggressive $999 pricing,$600 less than the S90C. Both TVs handle 4K/120Hz gaming with variable refresh rate, though Samsung's OLED response times are noticeably faster. For cinephiles and serious gamers, Samsung's superior OLED technology justifies the premium. Budget-conscious buyers seeking larger screen real estate will appreciate Sony's value proposition, but overall picture quality and gaming performance clearly favor the S90C.
Who Should Buy
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
Buy the Sony X85K 65" (LED) if…
- →120Hz with VRR at $999 makes it a capable mid-range gaming TV
- →Wide viewing angles from IPS panel suit family viewing
- →Dolby Vision and Dolby Atmos for full HDR support
Category Scores
Pros & Cons
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
Sony X85K 65" (LED)
Pros
- 120Hz with VRR at $999 makes it a capable mid-range gaming TV
- Wide viewing angles from IPS panel suit family viewing
- Dolby Vision and Dolby Atmos for full HDR support
- Sony X1 processor handles upscaling and motion well
- Google TV platform with Chromecast built-in
Cons
- IPS panel has poor black levels — contrast is a weakness
- No local dimming — black uniformity suffers in dark scenes
- 700 nits brightness is modest for HDR performance
- 20W speakers need external audio support
- Bluetooth 4.2 is dated for a 2022 TV
Full Specifications
| Spec | Samsung S90C 55" (4K OLED) | Sony X85K 65" (LED) |
|---|---|---|
| Body | ||
| VESA mount | 300 x 300mm | 300 x 300mm |
| Weight | 33.5 lbs | 43.2 lbs |
| Dimensions | 48.2 x 27.7 x 0.4 inches | 57.1 x 33.1 x 3.0 inches |
| Dimensions (w/ stand) | 48.2 x 30.2 x 9.3 inches | 57.1 x 35.8 x 13.4 inches |
| Audio | ||
| Output (watts) | 40 | 20 |
| Speakers | 2.1ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 6 | 10 |
| Display | ||
| HDR | Quantum HDR OLED, HDR10+, HLG | Dolby Vision, HDR10, HLG |
| Size | 55" | 65" |
| Type | QD-OLED | Direct LED (IPS panel) |
| Resolution | 3840 x 2160 (4K) | 3840 x 2160 (4K) |
| Refresh rate | 120Hz (144Hz via Game Mode) | 120Hz |
| Brightness (nits) | 1300 | 700 |
| Smart TV | ||
| Os | Tizen OS | Google TV |
| Voice assistant | Bixby, Alexa, Google Assistant | Google Assistant, Alexa |
| Connectivity | ||
| Wi-Fi | Wi-Fi 5 | Wi-Fi 5 |
| Ethernet | ||
| Bluetooth | 5.2 | 4.2 |
| USB ports | 2 | 2 |
| HDMI ports | 4 | 4 |
Related Comparisons
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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