The phones that support the service include the LG G2, Samsung Galaxy Mega 6.3, Samsung Galaxy S4 mini, Samsung Galaxy S4 and the HTC One max. By the end of this year, 100 markets and 100 million people will be covered by Sprint Spark. Right now, the service covers 14 markets including Los Angeles, New York, Chicago, Houston, Dallas, Austin, San Antonio, Fort Worth, Miami, Fort Lauderdale, Tampa, and Kansas City.
Sprint users in Baltimore and Philadelphia will also receive HD Voice, a technology that Sprint says will eliminate background noise and provides better than landline quality reception on your smartphone. According to Sprint, a typical handset will support four octaves while HD Voice supports seven. Ten octaves is perfect hearing.