Which is better for a bright living room?

The LG C5 has a glare-free coating and boosted brightness, but neither set matches a bright QD-OLED or mini-LED in daylight. The S90F is also anti-glare. If the room gets direct sun, plan on curtains for both.

Is the 77-inch Samsung worth $179 more than the 55-inch LG?

Yes, if size matters most. At $1,149.00 the S90F gives you 77 inches versus 55 for $969.99, roughly double the screen area for about 18% more money. You give up Dolby Vision and one confirmed HDMI 2.1 port count.

Which is better for PS5 and Xbox Series X?

The LG C5 is the safer pick. It lists four HDMI 2.1 ports, 4K 120Hz, VRR up to 144Hz, ALLM and G-Sync plus FreeSync Premium. The S90F supports 120Hz and VRR but does not state its HDMI 2.1 port count.

Which has better HDR?

The LG C5 supports Dolby Vision, which covers most streaming and disc HDR content. The S90F supports HDR10+ instead and has no Dolby Vision. Both handle HDR10.

Neither maker publishes a lifespan figure. Both use self-lit OLED pixels with no backlight to fail. Burn-in risk is low for mixed viewing on either; static news tickers and logos are the main concern.

How much space does the Samsung need?

The S90F is 67.7 inches wide, 1.8 inches deep and 103 lb without the stand. Measure the wall or console first, and use two people for setup.

LG C5 OLED evo 4K Smart TV vs Samsung S90F OLED TV

The LG C5 is the better buy for most shoppers: it is a 55-inch OLED with four HDMI 2.1 ports, Dolby Vision and a $969.99 price at Walmart as of November 7, 2026. The Samsung S90F is a 77-inch OLED for $1,149.00 at eBay as of the same date, so it wins on size per dollar if you have the wall space. Choose the C5 for a smaller room, Dolby Vision content and PC gaming up to 144Hz; choose the S90F if you want the biggest screen for the money.

Today the LG C5 OLED evo 4K Smart TV costs $228.00 less at its best price.

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