Roku Pro Series 55-Inch 4K TV vs Sansui S55VOUG 55" OLED TV

Buy the Sansui if picture quality is the priority. Its OLED panel gives per-pixel contrast and true blacks that the Roku's Mini-LED backlight cannot match, and it adds Dolby Atmos with a 2.1-channel subwoofer and two HDMI 2.1 ports. The Roku Pro Series is a bright QLED set with hundreds of dimming zones and the simpler Roku OS, and its listing describes it as OLED in the name while the specs and highlights say QLED Mini-LED, so confirm the panel before you buy. Owners of OLED sets praise the blacks and viewing angles; Mini-LED sets like the Roku win on peak brightness in bright rooms.

• Choose the Roku Pro Series if you want the straightforward Roku OS, a voice remote and a bright Mini-LED picture for a sunny room.
• Choose the Sansui if you want true OLED blacks, Dolby Atmos sound with a subwoofer and two HDMI 2.1 ports for a console.