The LG G5 OLED 65 is the better TV overall, with its OLED panel providing excellent color accuracy and contrast. However, the Hisense U6K Mini Led 55 is a good option for those on a budget who still want a good balance of price and performance. According to RTINGS, the LG G5 OLED 65 has a higher contrast ratio and better color accuracy than the Hisense U6K Mini Led 55.