Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | LG - B5 OLED 65 | Sony - Bravia 3 LED 55 |
|---|---|---|
| Refresh rate | 120 Hz | 60 Hz |
| Peak brightness | 750 nits | 450 nits |
| Screen size | 65 " | 55 " |
| HDMI 2.1 ports | 4 | 0 |
| VRR | true | false |
| Panel type | OLED | LED |
Between the B5 OLED 65 and Bravia 3 LED 55, the B5 OLED 65 comes out ahead in refresh rate / peak brightness, while the Bravia 3 LED 55 wins on smart os. Overall, the B5 OLED 65 scores 65 and the Bravia 3 LED 55 scores 47 on our Mars Score.
Which should you buy?
The B5 OLED 65 is the clear pick on raw spec strength, leading by 18.0 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 B5 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 refresh rate, peak brightness, screen size, among others. The single most decisive one: Refresh rate — 100.00% more. 120 Hz vs 60 Hz.
Pick the Bravia 3 LED 55 if you care most about smart os. Its strongest claims are smart os. The single most decisive one: Smart OS: Google TV (vs webOS).
Both ship with comparable dolby vision, so those specs do not separate the two — focus on the differences below.
Bottom line: the B5 OLED 65 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 - B5 OLED 65 or Sony - Bravia 3 LED 55?
LG - B5 OLED 65 leads the current Mars Score by 18.0 points.The more useful decision is the trade-off behind that result: compare screen size, panel type, refresh rate, hdmi 2.1 ports against the way you will actually use the product.
Choose LG - B5 OLED 65 if…
LG - B5 OLED 65 has the measurable edge on refresh rate hz, peak brightness nits, screen size in.
Choose Sony - Bravia 3 LED 55 if…
Sony - Bravia 3 LED 55 has the measurable edge on smart os.
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 - B5 OLED 65 wins
- ▲Refresh rate — 100.00% more. 120 Hz vs 60 Hz.
- ▲Peak brightness — 66.67% more. 750 nits vs 450 nits.
- ▲Screen size — 18.18% more. 65 " vs 55 ".
- ▲HDMI 2.1 ports — 4.00 more. 4 vs 0.
- ▲Has VRR.
- ▲Panel type: OLED (vs LED).
Why Sony - Bravia 3 LED 55 wins
- ▲Smart OS: Google TV (vs webOS).
Spec comparison
Display
| Spec | LG - B5 OLED 65 | Sony - Bravia 3 LED 55 |
|---|---|---|
| Screen size | 65 "lead | 55 " |
| Panel typeⓘ | OLEDlead | LED |
| Resolutionⓘ | 4K | 4K |
| Refresh rateⓘ | 120 Hzlead | 60 Hz |
| Peak brightnessⓘ | 750 nitslead | 450 nits |
HDR & Smart
| Spec | LG - B5 OLED 65 | Sony - Bravia 3 LED 55 |
|---|---|---|
| Dolby Visionⓘ | true | true |
| HDR10+ⓘ | false | false |
| Smart OS | webOS | Google TVlead |
| Dolby Atmosⓘ | true | true |
Gaming
| Spec | LG - B5 OLED 65 | Sony - Bravia 3 LED 55 |
|---|---|---|
| HDMI 2.1 portsⓘ | 4lead | 0 |
| VRRⓘ | truelead | false |
| ALLM | truelead | false |
Frequently asked
Which is brighter, B5 OLED 65 or Bravia 3 LED 55?+
B5 OLED 65 peaks at 750 nits vs 450 nits.
Which is better for gaming, B5 OLED 65 or Bravia 3 LED 55?+
B5 OLED 65 offers 120Hz refresh and 4 HDMI 2.1 ports.
Does B5 OLED 65 or Bravia 3 LED 55 support Dolby Vision?+
Both support Dolby Vision.