The technical support are very helpful if you have any problems!
MAKE SURE the SIM CARD is 4G compatible because the device accepts 4G only!
If you contact your mobile phone carrier and ask them for a extra SIM card plan make sure to tell them that you need something that is compatible with wireless devices no tablets or watches!! But if not you can also HOTSPOT yourself with your own phone and have wifi on the screen as well very cool tho! Having YouTube and Netflix or any other app that you like, also the CarPlay works amazing!!
Your not gonna regret believe me!