Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | LG - C4 OLED 65 | Samsung - S95F QD-OLED 77 |
|---|---|---|
| Peak brightness | 1000 nits | 3800 nits |
| Screen size | 65 " | 77 " |
| Refresh rate | 144 Hz | 165 Hz |
| Dolby Vision | true | false |
| Smart OS | webOS | Tizen |
| Panel type | OLED | QD-OLED |
Between the C4 OLED 65 and S95F QD-OLED 77, the C4 OLED 65 comes out ahead in dolby vision / smart os, while the S95F QD-OLED 77 wins on peak brightness / screen size. Overall, the C4 OLED 65 scores 67.8 and the S95F QD-OLED 77 scores 84.8 on our Mars Score.
Which should you buy?
The S95F QD-OLED 77 is the clear pick on raw spec strength, leading by 17.0 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the C4 OLED 65 if you care most about dolby vision / smart os. The biggest gaps in its favor are dolby vision, smart os. The single most decisive one: Has Dolby Vision.
Pick the S95F QD-OLED 77 if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. Its strongest claims are peak brightness, screen size, refresh rate, among others. The single most decisive one: Peak brightness — 280.00% more. 3800 nits vs 1000 nits.
Both ship with comparable hdmi 2.1 ports, vrr, so those specs do not separate the two — focus on the differences below.
Bottom line: the S95F QD-OLED 77 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: LG - C4 OLED 65 or Samsung - S95F QD-OLED 77?
Samsung - S95F QD-OLED 77 leads the current Mars Score by 17.0 points.The more useful decision is the trade-off behind that result: compare screen size, panel type, refresh rate against the way you will actually use the product.
Choose LG - C4 OLED 65 if…
LG - C4 OLED 65 has the measurable edge on has dolby vision, smart os.
Choose Samsung - S95F QD-OLED 77 if…
Samsung - S95F QD-OLED 77 has the measurable edge on peak brightness nits, screen size in, refresh rate hz.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why LG - C4 OLED 65 wins
- ▲Has Dolby Vision.
- ▲Smart OS: webOS (vs Tizen).
Why Samsung - S95F QD-OLED 77 wins
- ▲Peak brightness — 280.00% more. 3800 nits vs 1000 nits.
- ▲Screen size — 18.46% more. 77 " vs 65 ".
- ▲Refresh rate — 14.58% more. 165 Hz vs 144 Hz.
- ▲Panel type: QD-OLED (vs OLED).
Spec comparison
Display
| Spec | LG - C4 OLED 65 | Samsung - S95F QD-OLED 77 |
|---|---|---|
| Screen size | 65 " | 77 "lead |
| Panel typeⓘ | OLED | QD-OLEDlead |
| Resolutionⓘ | 4K | 4K |
| Refresh rateⓘ | 144 Hz | 165 Hzlead |
| Peak brightnessⓘ | 1000 nits | 3800 nitslead |
HDR & Smart
| Spec | LG - C4 OLED 65 | Samsung - S95F QD-OLED 77 |
|---|---|---|
| Dolby Visionⓘ | truelead | false |
| HDR10+ⓘ | false | truelead |
| Smart OS | webOSlead | Tizen |
| Dolby Atmosⓘ | true | true |
Gaming
| Spec | LG - C4 OLED 65 | Samsung - S95F QD-OLED 77 |
|---|---|---|
| HDMI 2.1 portsⓘ | 4 | 4 |
| VRRⓘ | true | true |
| ALLM | true | true |
Frequently asked
Which is brighter, C4 OLED 65 or S95F QD-OLED 77?+
S95F QD-OLED 77 peaks at 3800 nits vs 1000 nits.
Which is better for gaming, C4 OLED 65 or S95F QD-OLED 77?+
S95F QD-OLED 77 offers 165Hz refresh and 4 HDMI 2.1 ports.
Does C4 OLED 65 or S95F QD-OLED 77 support Dolby Vision?+
C4 OLED 65 supports Dolby Vision; S95F QD-OLED 77 does not.