The all-Android Galaxy S4 was announced on May 15th, at Google’s I/O's conference. The specs of the S4 will equal that of the carrier variants, including the same 5-inch 1080p display and quad-core processor. However, the Google edition will run on a stock Android Jelly Bean 4.2.2, sans the Samsung TouchWiz interface & the 15 pounds of extra carrier bloatware.
It will also come with 16GB of internal storage, LTE support, an unlocked bootloader, and automatically receive system updates directly from Google -- which is a huge plus.
This carrier unlocked GS4 version will be available starting June 26 and will work on AT&T and T-Mobile networks. It can be purchased directly from the Google Play Store for a whopping $649.
The two videos below do a great job of demonstrating the personality types of each variant.
SAMSUNGmobile promo video for the S4:
Google Nexus promo video demonstrating Stock Android:
The Google Nexus promo is more my style. I spent 2 weeks with the S4, and the one thing I loved about it was its screen. The rest was a bust, mostly because I'm so used to stock Android. I must say, this would be a tempting option if it weren't for the fact that a Nexus 5 running Key Lime Pie is likely a go in the coming months.