Is the BRAVIA 9 II worth it over OLED?

If you watch in a bright room or want maximum HDR brightness, the RGB backlight is a real advantage. In a dark room, an OLED at a similar price will give deeper blacks and no blooming.

What is the difference between the BRAVIA 9 II and the original BRAVIA 9?

The II moves to an RGB LED backlight (RGB Backlight Master Drive Pro) with RGB Triluminos Pro, which Sony says improves color purity and reduces halos. The rest of the package, including the XR Processor and 120Hz HDMI 2.1 inputs, carries over.

Does it support 4K120 and VRR for PS5 and Xbox?

Yes. It has HDMI 2.1 with 4K120, VRR and ALLM, so current consoles can run high frame rates with low latency.

What sizes does it come in?

Sony lists 65, 75, 85 and 115-inch classes. The 115-inch option costs far more and needs a very large wall.

Do I need a soundbar?

Probably not for everyday viewing. Acoustic Multi-Audio+ with beam tweeters is stronger than most built-in TV audio, though a separate system still adds bass.

Flagship TVs usually drop around Black Friday and during spring clearance before new models arrive. Track the price history here rather than buying at list.