Which is better for gaming?

The Samsung S90H. It runs up to 165Hz with the Ultimate Gaming Pack and has four HDMI ports. The Sony XR8B tops out at 120Hz.

Does the Samsung S90H support Dolby Vision?

No. It handles HDR10, HDR10+ and HLG. The Sony XR8B supports Dolby Vision, so pick the Sony if Dolby Vision content matters to you.

Is the Sony worth the extra $500?

Only if you want Dolby Vision, AirPlay 2 and an ATSC 3.0 tuner. On picture basics both are 77-inch OLEDs with four HDMI ports, so the Samsung covers most buyers for less.

Which handles a bright room better?

The Samsung S90H, which has a Glare Free coating. Sony's listing does not name an anti-glare treatment.

Which has better built-in sound?

The Sony XR8B supports Dolby Atmos and DTS:X. The Samsung S90H uses a 2.1 channel, 40 W system. A soundbar beats both.

Do both have a NextGen TV tuner?

No. Only the Sony XR8B lists ATSC 3.0. The Samsung S90H does not list it.

Samsung S90H 77" OLED 4K TV vs Sony BRAVIA XR8B 77" OLED TV

Both are 77-inch OLED 4K TVs with four HDMI ports, but they target different buyers. The Samsung S90H is about $500 cheaper at $1,997.99 at Best Buy as of November 7, 2026, versus $2,498.00 at B&H Photo-Video-Audio for the Sony XR8B. Pick the Samsung for gaming and glare-heavy rooms; pick the Sony for Dolby Vision, AirPlay and built-in NextGen TV tuner.

Today the Samsung S90H 77" OLED 4K TV costs $500.01 less at its best price.

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