this thing is so nice. i bought it for my aunt, and she and i both love it. i am going to have to figure out what the sim cards are for, but yeah. It's awesome! shipping was great also.

it works great. I got it to use with mobile data but didn't realize it was only for T-Mobile. thank God I have T-Mobile Internet and could just add a data plan for the tablet. So just make sure if you are buying it for mobile data use you have T-Mobile

Ibowin 10.1 "Octa- Core High-performance IPS Screen 4G Network Tablet 64G ROM For Android 11-white