There is some confusing over the Onda v919 3G Core M being a dual boot tablet. I know it will ship with Windows 8.1. However, according to a Weibo posted from Onda, they will later on release on their forums a Windows 10 and Android 5 dual boot bios, ROM and image for the tablet. The translated Weibo claims it will be a proper Android / Windows dual boot set up, not the emulated Android x86 applications we have seen so far on the Core M Chinese tablets.
I certainly hope this is true and not another emulated Android, take this with a pinch of salt. I’ll believe it once I see it running with my own eyes.