I have absolutely no idea. But as I am on my THIRD warranty replacement for a Motorola Droid Razr, I can tell you that this is one tricky little phone you'll want to avoid. As a business owner, I live on my phone, so having a phone with a screen that locks up in the middle of a call... or worse, won't even let me dial... pure pain. The Droid Razr is a fast, beautiful phone... it's wonderful in every way, except for when it locks up and won't let you make phone calls. It's a great phone for a college student, or someone who just wants something to surf the web at Verizon's blazing 4G speeds. But as for me, I am a knuckle-dragging, troglodyte who primarily uses his phone to... well.. make and receive phone calls. I think I'm going to trade this beautiful new phone for a scratched up iPhone 4 at the second hand shop.