Which is better for gaming?

The LG C3 has the edge for gaming. It offers four HDMI 2.1 ports plus G-Sync and FreeSync, which suits PC and console players. The Samsung S85F also does 120Hz and VRR, but its gaming feature set is less complete.

Which has the better picture?

The Samsung S85F is brighter and more colorful thanks to its newer panel and Vision AI processing. The LG C3 has excellent contrast and adds Dolby Vision, which matters if you watch a lot of Dolby Vision movies.

Both use OLED panels with similar lifespans, and burn-in risk is low with normal mixed viewing. The LG C3 has a longer track record in owner reports, while the Samsung is too new for long-term data.

Do I need a soundbar with either?

Yes, for both. The Samsung's 20W top-firing speakers are clearer than the LG's down-firing pair, but neither matches a dedicated soundbar for bass and scale.

Is the Samsung worth stepping up to over the LG?

Step up to the Samsung if you want the brightest picture and newer processing. Stay with the LG if Dolby Vision and full gaming features matter more to you.

Which is better for a bright room?

The Samsung S85F handles reflections and bright rooms better because of its higher brightness. Neither OLED matches a mini-LED set in a sunlit room, but the Samsung copes better.

Samsung S85F OLED 4K Smart TV (2025) vs LG C3 65-Inch OLED TV

Both are 65-inch 4K OLEDs with 120Hz panels, four HDMI ports and full smart platforms, so the picture fundamentals are close. The Samsung S85F is the newer 2025 set with a brighter, more colorful panel, top-firing speakers and Samsung's Vision AI processing. The LG C3 is an older but well-proven OLED evo with strong gaming support and a mature webOS interface. Buy the Samsung for a brighter, more vivid picture and newer processing; buy the LG if you want a proven gaming TV with a long track record.

Choose the Samsung S85F if you want the newer panel, brighter HDR highlights and top-firing speakers in a slim design.
Choose the LG C3 if you want a proven OLED evo gaming TV with four full-bandwidth HDMI 2.1 ports and mature webOS.

Prices

Samsung S85F OLED 4K Smart TV (2025): $1,097.95 at Walmart (checked today)