Apple brings its first 4G LTE device. The 4G version is available for both AT&T And Verizon network in US. But we just find out for different carrier Apple have different hardware. So you have to be careful in case you are ordering new iPad 4G. Here is details what we have find out.
While we were surfing for more details on iPad 4G specification we find out this. Apple says its world ready, and it use MicroSIM, so like iPhone 4S it works with both GSM based network and also with CDMA based network. But for 4G LTE it requires different hardware to support different carriers different network.
Here is the what we find out at Apple.com site at this page
Choose your iPad by carrier
AT&T or Verizon
If you decide on an iPad with Wi-Fi + 4G, be sure to select the model that corresponds with the carrier you’d like to use for 4G LTE service. The iPad model you purchase is specially configured to work with either AT&T or Verizon — not both. So while you don’t have to activate service right away, you should choose your iPad with Wi-Fi + 4G according to the carrier you prefer.
And here is some key data about 4G specification.
Wi-Fi + 4G for AT&T
LTE (700, 2100 MHz); UMTS/HSPA/HSPA+/DC-HSDPA (850, 900, 1900, 2100 MHz); GSM/EDGE (850, 900, 1800, 1900 MHz)
Wi-Fi + 4G for Verizon
LTE (700 MHz); CDMA EV-DO Rev. A (800, 1900 MHz); UMTS/HSPA/HSPA+/DC-HSDPA (850, 900, 1900, 2100 MHz); GSM/EDGE (850, 900, 1800, 1900 MHz)
And Apple is releasing The new iPad for 10 country at the beginning, available from 16th March, and seems it will release it worldwide pretty soon, So from country to country, carrier to carrier hardware might be changed. So its not truly a universal World Ready device.