iFixit tells you what’s the difference between the three versions of iPad 2
iFixit already tear apart one unit of iPad 2 when it arrives, and now they’re going to tear up another unit, but for what? Well, for the name of radio science that’s why. Well actually not one, but three iPad 2s. This time they’re going to tell you what’s the different with the innards of the WiFi-only, GSM, and CDMA versions.
A grand total of three iPad 2s were sacrificed in this round, revealing variations in case design, antenna count, WWAN board layout, radio chipset choices, and headphone jack assemblies. Besides clearly visible changes like the black antenna window on the 3G models and the microSIM slot on the GSM version, it’s interesting to note that Apple made the same design choices with the iPad 2 and the iPhone 4.
The CDMA model features an additional antenna over its GSM sibling, and uses a Qualcomm Gobi dual-mode radio which supports both CDMA and GSM — the latter being unused — along with an integrated GPS receiver, just like the iPhone 4 for Verizon. The GSM version, meanwhile, uses an Infineon chipset for GSM and a separate Broadcom module for GPS, just like the global iPhone 4.
SOURCE via iFixit
