Between the C5 OLED 65 and B5 OLED 65, the C5 OLED 65 comes out ahead in peak brightness and refresh rate, while the B5 OLED 65 wins on several specs. Overall, the C5 OLED 65 scores 63.5 and the B5 OLED 65 scores 57.9 on our Mars Score.
Which should you buy?
The C5 OLED 65 edges ahead on the Mars Score (63.5 vs 57.9), but the 5.6-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the C5 OLED 65 if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. The biggest gaps in its favor are peak brightness, refresh rate.
The B5 OLED 65 similarly doesn't carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable screen size, panel type, dolby vision, so those specs don't separate the two — focus on the differences below.
Bottom line: the C5 OLED 65 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why LG - C5 OLED 65 wins
- ▲Peak brightness — 73.33% more. 1300 nits vs 750 nits.
- ▲Refresh rate — 20.00% more. 144 Hz vs 120 Hz.
Why LG - B5 OLED 65 wins
- No decisive advantages.
Spec comparison
Display
| Spec | LG - C5 OLED 65 | LG - B5 OLED 65 |
|---|---|---|
| Screen sizeⓘ | 65 " | 65 " |
| Panel typeⓘ | OLED | OLED |
| Resolutionⓘ | 4K | 4K |
| Refresh rateⓘ | 144 Hzlead | 120 Hz |
| Peak brightnessⓘ | 1300 nitslead | 750 nits |
HDR & Smart
| Spec | LG - C5 OLED 65 | LG - B5 OLED 65 |
|---|---|---|
| Dolby Visionⓘ | true | true |
| HDR10+ⓘ | false | false |
| Smart OS | webOS | webOS |
| Dolby Atmosⓘ | true | true |
Gaming
| Spec | LG - C5 OLED 65 | LG - B5 OLED 65 |
|---|---|---|
| HDMI 2.1 portsⓘ | 4 | 4 |
| VRRⓘ | true | true |
| ALLM | true | true |
Frequently asked
Which is brighter, C5 OLED 65 or B5 OLED 65?+
C5 OLED 65 peaks at 1300 nits vs 750 nits.
Which is better for gaming, C5 OLED 65 or B5 OLED 65?+
C5 OLED 65 offers 144Hz refresh and 4 HDMI 2.1 ports.
Does C5 OLED 65 or B5 OLED 65 support Dolby Vision?+
Both support Dolby Vision.
Spec-level deep dives
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