Samsung U8000H Crystal UHD 50" vs Pioneer 50" R851 Series 4K Roku TV

Both are 50-inch 4K LCD TVs at 60Hz, so the picture is close. The Samsung U8000H wins on the smart platform: Tizen is faster, has more apps and supports Google Assistant and Alexa voice control. The Pioneer R851 runs Roku TV, which is simple to learn and has a strong app selection, and it adds a second USB port. Build is similar plastic-and-thin-bezel at this level. Buy the Samsung for a smoother, better-supported smart TV; buy the Pioneer if you prefer Roku's interface or need the extra USB port.

• Choose the Samsung U8000H if you want the faster smart system, more app support and built-in Alexa and Google Assistant voice control.
• Choose the Pioneer R851 if you prefer the Roku TV interface or need two USB ports for a drive and a stick.