Is the BRAVIA 7 worth it over the Bravia 9?

The Bravia 9 is brighter with far more dimming zones and better blooming control. The BRAVIA 7 keeps most of Sony's processing and gaming features for less, so it is the better value unless you watch a lot of dark HDR content in a bright room.

How does it compare with the Samsung QN90D?

The Samsung is brighter and has more dimming zones. The Sony wins on color accuracy, motion and upscaling, and it adds Dolby Vision, which Samsung lacks.

Does it support 4K 120 Hz for PS5 and Xbox?

Yes. It has HDMI 2.1 inputs with 4K 120 Hz, VRR and ALLM, so consoles run at high frame rates. Check which ports on your size are 2.1, since only some are.

Which sizes are available?

It comes in 55, 65, 75 and 85 inches. All sizes share the same panel technology and features.

Does it have Dolby Vision and Dolby Atmos?

Yes, it supports Dolby Vision HDR and Dolby Atmos passthrough. Built-in speakers are average, so a soundbar or AV receiver is worth adding.

Can I use Alexa or Siri with it?

Google Assistant works hands-free on the TV itself. Alexa and Siri work through compatible external devices and the Google TV platform's casting and control features.