Google has officially listed both the Nexus Experience HTC One and Samsung Galaxy S4 for sale on the Play Store. The HTC One will run you $599, while the Galaxy S4 is slightly more at $649. Both of the devices will ship by July 9th running the latest 4.2.2 version of Android.
The HTC One will still feature the Beats Audio sound quality, while the Galaxy S4 still offers the ability to use a Samsung Flip Cover. So both of these devices still have some enhancements outside of normal Nexus devices.