Some iPads are Wi-Fi-only, and some also offer mobile connectivity, as long as you have a SIM. You can quickly tell if your iPad is capable of mobile connectivity by looking for the SIM card slot on the side. If you see one then it's a Wi-Fi + cellular model. If not, then it's Wi-Fi only. Select your iPad Carrier from the list below or Wi-Fi only option if your iPad don't have a SIM.
What Storage Capacity Have my iPad
On the Settings menu, tap the General tab located in the middle of the menu then select About. You'll find your iPad storage capacity in the following window.