Home TV 55" 4K UHD Frameless LED with Digital System Curved TV

What is the difference between the stand-alone version and the online version?single visionOnline version                                       FeaturesSupport for connecting closed circuits, set-top boxes, network boxes, computers, etc.                                          FeaturesAfter connecting to the Internet, you can watch N+1 channels, movies, and children's programs for free                                 InterfaceVGA,HD--MI,AV,RF                                         InterfaceHD--MI,AV,RF,LAN,WIFI                       Internet connectionnot support                               Internet connectionSupport wired and wireless network connectionTV size parameter specificationssizeLength×width(mm)sizeLength×width(mm)17inch550×115×39655inch1335×145×80019inch570×100×43560inch1435×145×85022inch550×113×39465inch1615×215×96024inch830×140×60075inch1795×240×109132inch795×130×50585inch2172×352×135043inch945×140×600100inch2450×250×1550