Both the LG OLED83B5PUA and the LG OLED97G5WUA share the same fundamental display DNA: identical 4K (3840 x 2160) OLED panels with 120Hz refresh rates, 0.1ms response times, 10-bit color depth rendering 1.07 billion colors, and identical HDR support across Dolby Vision, HDR10, and HLG. Both also offer the same wide 178° viewing angles, adaptive sync compatibility with Nvidia G-Sync and AMD FreeSync Premium, anti-reflection coating, and an ambient light sensor. For the vast majority of picture-quality considerations, these two TVs are effectively identical in specification.
The single meaningful differentiator within this spec group is screen size — and its downstream effect on pixel density. The B5PUA measures 83.5″ at 53 ppi, while the G5WUA stretches to 97.4″ at 45 ppi. In practice, at typical TV viewing distances (10 feet or more), neither pixel density is distinguishable to the naked eye — both will appear razor-sharp. However, the 14-inch size difference is dramatic in a living room context: the 97″ panel delivers nearly 36% more screen area, which translates to a significantly more immersive, cinematic experience, particularly for large rooms.
For this display spec group, the LG OLED97G5WUA holds the edge purely on screen real estate — the larger canvas with no trade-off in core picture quality specs makes it the more impactful viewing experience, assuming the room and budget accommodate it. If size is not a priority, the B5PUA is effectively its equal in every measurable display attribute.