Sprint confirms its HD Voice is incompatible with the iPhone 5

The new, lighter iPhone 5 has a bigger screen, punchier processor, LTE and dual-band WiFi, but if you plan to pick one up for Sprint's network, you can't have it all. Carrier spokesperson Michelle Leff Mermelstein told Phone Scoop that its version of HD Voice will not work on Apple's new wünderphone. While most carriers use WCDMA networks to achieve the greater definition, Sprint uses CDMA 1X Advanced, which unfortunately isn't compatible with the handset. Knowing the feature will be missing prior to launch isn't ideal, but when you're calling your friends to boast about that day-one purchase, a slight drop in clarity isn't likely to kill your geek buzz.