The worst smartphone company, never expect a bit of customer support from this manufacturer, you should loose your money ultimately and will thrown it to a lot of trouble.
No software update after the basic version, I have used Nubia m2.

Never buy nubia red magic, if something goes wrong with the phone and trust me it will, you will have to send it to Slovakia to fix it, thats bs. I had red magic 3s, it just simply died, while I was talking on the phone after 9 month of use. Contacting their customer service is mission impossible too. If you want something you can trust, just buy a normal brand, not chinese shitty phone that will break too fast.