Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | LG - G5 OLED evo 65 | LG - G5 OLED evo 77 |
|---|---|---|
| Screen size | 65 " | 77 " |
Between the G5 OLED evo 65 and G5 OLED evo 77, the G5 OLED evo 65 comes out ahead in several specs, while the G5 OLED evo 77 wins on screen size. Overall, the G5 OLED evo 65 scores 80.4 and the G5 OLED evo 77 scores 82.8 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (80.4 vs 82.8). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
The G5 OLED evo 65 does not pull ahead on any single popular-comparison spec — its strengths sit in the spec-table groups rather than the headline advantages.
Pick the G5 OLED evo 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 screen size. The single most decisive one: Screen size — 18.46% more. 77 " vs 65 ".
Both ship with comparable panel type, refresh rate, peak brightness, so those specs do not separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: LG - G5 OLED evo 65 or LG - G5 OLED evo 77?
LG - G5 OLED evo 77 leads the current Mars Score by 2.4 points.The more useful decision is the trade-off behind that result: compare screen size against the way you will actually use the product.
Choose LG - G5 OLED evo 65 if…
LG - G5 OLED evo 65 does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
Choose LG - G5 OLED evo 77 if…
LG - G5 OLED evo 77 has the measurable edge on screen size in.
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 - G5 OLED evo 65 wins
- No decisive advantages.
Why LG - G5 OLED evo 77 wins
- ▲Screen size — 18.46% more. 77 " vs 65 ".
Spec comparison
Display
| Spec | LG - G5 OLED evo 65 | LG - G5 OLED evo 77 |
|---|---|---|
| Screen size | 65 " | 77 "lead |
| Panel typeⓘ | OLED | OLED |
| Resolutionⓘ | 4K | 4K |
| Refresh rateⓘ | 165 Hz | 165 Hz |
| Peak brightnessⓘ | 4000 nits | 4000 nits |
HDR & Smart
| Spec | LG - G5 OLED evo 65 | LG - G5 OLED evo 77 |
|---|---|---|
| Dolby Visionⓘ | true | true |
| HDR10+ⓘ | false | false |
| Smart OS | webOS | webOS |
| Dolby Atmosⓘ | true | true |
Gaming
| Spec | LG - G5 OLED evo 65 | LG - G5 OLED evo 77 |
|---|---|---|
| HDMI 2.1 portsⓘ | 4 | 4 |
| VRRⓘ | true | true |
| ALLM | true | true |
Frequently asked
Which is brighter, G5 OLED evo 65 or G5 OLED evo 77?+
G5 OLED evo 77 peaks at 4000 nits vs 4000 nits.
Which is better for gaming, G5 OLED evo 65 or G5 OLED evo 77?+
G5 OLED evo 65 offers 165Hz refresh and 4 HDMI 2.1 ports.
Does G5 OLED evo 65 or G5 OLED evo 77 support Dolby Vision?+
Both support Dolby Vision.