A:Answer Unlocked means you can use this iPad with any mobile carrier, including Verizon, AT&T, T-Mobile, etc. You're not forced to use any specific carrier, like you would if you bought it at a carrier store (like the T-Mobile store). Also, if you travel internationally, you could purchase a SIM card from there and use it in this iPad. This is in addition to the Wi-Fi capability which is common in all iPads (hence the price difference).