In my opinion, go for 2500rs connection. By just paying 1000rs extra, you are getting smart 4k box. Even if you already have smart tv or amazon firetv stick or android tv box/stick from any brand, I'd recommend getting Jio stb, because it supports 4k, it has usb ports to connect peripherals, it has faster UI, it can easily convert non-smart tv to smart tv, it will offer several new features in future as Jio ecosystem grows, it costs just 1000rs extra.