Even being limited to only two carriers and two devices, while Android-based devices are available in all carriers and there hundreds of them, the iPhone 4 and 3GS are the best-selling smartphones in the U.S right now.

iPhone 3GS and iPhone 4The chart shows iPhone 4 in first place and iPhone 8 GB [3GS], which was later introduced by AT&T for $50, in second place.  On third place is the HTC EVO 4G, the rest keeps going with Android-based devices. Here is the list showing the top 5 best-selling devices in the second quarter:

Here are the top five best-selling phones during Q2, via NPD’s Mobile Phone Track service:

1. Apple iPhone 4
2. Apple iPhone 3GS
3. HTC EVO 4G
4. HTC Inspire 4G
5. Samsung INTENSITYII

This stats come from a research firm NPD, in which they also show that Android still leading the U.S. cell phone market with 52% of new sales during Q2 of this year. Apple’s iPhone claimed a solid 29% share, while RIM’s BlackBerry device/OS only managed to muster 11% of the market.

(via macrumors)