LG QNED80 55" vs Samsung S90C 65" (4K OLED)
The Verdict
LG's QNED80 delivers exceptional value for budget-conscious buyers, offering 4K resolution, 120Hz refresh, and Quantum Dot technology at $699. However, Samsung's S90C represents a generational leap with QD-OLED technology, superior brightness (1500 vs 700 nits), faster gaming response (6ms vs 10ms), and Dolby Atmos audio,though the 65-inch size and $1999 price tag demand serious commitment. Picture quality differences are substantial; OLED's perfect blacks and infinite contrast vastly outperform LCD backlighting. Gaming enthusiasts benefit from the S90C's 144Hz Game Mode and minimal input lag. For living room centerpieces prioritizing cinematic experience, Samsung wins decisively. Budget shoppers unwilling to exceed $700 will appreciate the LG's impressive feature set, though compromises in brightness and audio become apparent. Recommend Samsung S90C for premium home theater demands; LG QNED80 for value-focused 4K gamers and streamers.
Who Should Buy
Buy the LG QNED80 55" if…
- →120Hz native panel with VRR at a mid-range price
- →Dolby Vision support for superior HDR compared to HDR10+ only TVs
- →webOS 24 is one of the best smart TV platforms available
Buy the Samsung S90C 65" (4K OLED) if…
- →65-inch QD-OLED at $1,999 undercuts LG C3 OLED while being brighter
- →Wider color gamut and higher brightness than traditional WOLED panels
- →Infinite contrast with no light bleed or blooming
Category Scores
Pros & Cons
LG QNED80 55"
Pros
- 120Hz native panel with VRR at a mid-range price
- Dolby Vision support for superior HDR compared to HDR10+ only TVs
- webOS 24 is one of the best smart TV platforms available
- Four HDMI ports with ALLM for multi-device setups
- Quantum Dot + NanoCell technology improves color accuracy
Cons
- Not OLED — contrast and black levels are significantly behind
- 700-nit brightness is modest for HDR highlights
- 20W speakers are underwhelming — needs a soundbar
- Edge-lit LED can show uneven backlighting in dark scenes
Samsung S90C 65" (4K OLED)
Pros
- 65-inch QD-OLED at $1,999 undercuts LG C3 OLED while being brighter
- Wider color gamut and higher brightness than traditional WOLED panels
- Infinite contrast with no light bleed or blooming
- Excellent for gaming with 4K@144Hz, VRR, and low input lag
- Anti-glare coating reduces reflections in bright rooms
Cons
- No Dolby Vision — HDR10+ only
- 40W speakers are underwhelming for a $2,000 TV — needs a soundbar
- Potential OLED burn-in risk with static content
- Wi-Fi 5 on a premium 2023 TV feels like a cost-cutting measure
Full Specifications
| Spec | LG QNED80 55" | Samsung S90C 65" (4K OLED) |
|---|---|---|
| Body | ||
| VESA mount | 300 x 300mm | 300 x 300mm |
| Weight | 28.4 lbs | 40.6 lbs |
| Dimensions (w/ stand) | 48.5 x 30.7 x 9.3 inches | 56.8 x 34.5 x 10.1 inches |
| Dimensions | — | 56.8 x 32.5 x 0.5 inches |
| Audio | ||
| Output (watts) | 20 | 40 |
| Speakers | 2.0ch | 2.1ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 10 | 6 |
| Display | ||
| HDR | HDR10, HLG, Dolby Vision | Quantum HDR OLED, HDR10+, HLG |
| Size | 55" | 65" |
| Type | QNED (Quantum Dot NanoCell) | QD-OLED |
| Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K) |
| Refresh rate | 120Hz (native) | 120Hz (144Hz via Game Mode) |
| Brightness (nits) | 700 | 1500 |
| Smart TV | ||
| Os | webOS 24 | Tizen OS |
| Voice assistant | ThinQ AI, Alexa, Google Assistant | Bixby, Alexa, Google Assistant |
| Processor | ||
| Chipset | α8 AI Processor 4K | — |
| Connectivity | ||
| Wi-Fi | Wi-Fi 5 (802.11ac) | Wi-Fi 5 |
| Ethernet | ||
| Bluetooth | 5.1 | 5.2 |
| 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.
Explore more in tvs, see all LG products or all Samsung products. View full details for the LG QNED80 55" or the Samsung S90C 65" (4K OLED).

