The LG C5 OLED 77 outperforms the Hisense U6K Mini Led 75 in contrast and viewing angles with perfect blacks measured at 0 nits by RTINGS, while the Hisense reaches 1500 nits peak brightness per CNET lab data. The LG also supports Dolby Vision gaming at 144Hz versus the Hisense's more limited HDR formats. For most users seeking premium image quality the LG C5 is the stronger choice despite high...