FWIW: I had a HDMI module and now have a Shield K1 with HDMI port. The Shield blows the HDMI module away, as you can see exactly what you see on the screen. So ALL telemetry, the radar on DJI Go, anything. Moreover, there is no discernible lag difference between the module and the HDMI port on the K1. The Shield HDMI also works with apps that don't officially support the official HDMI module. Great and cheap tablet. Just a pity the battery drains so quickly, and the screen could be a bit brighter.