Sarah, it comes with “China version” of Android.
You can’t root it for now because no one has made a ROM for Onda V919 Core M (afaik).
Therefore, you can’t install google play apk.
It’s pretty much useless for now as it’s loaded with tons of Chinese apps.
I removed all Android partitions when I installed a clean Windows 10.
My Onda V919 Core M only runs Windows 10 now.
My tablet works flawlessly.
Hope this helps.