Sprint is hoping that its Spark service helps it take business away from the other major carriers. Spark is a tri-band LTE network. Circuitry on specially equipped phones figures out which of the three bands is best suited for a particular task. This helps Sprint offer faster data speeds, and better signal penetration. Spark is currently in 14 markets and will cover 100 million people by the end of this year. By 2016, Sprint Spark will be in 100 markets.
To access the faster speeds, Sprint Spark customers today will have to buy new devices. Saw notes that the phones compatible with Sprint Spark today, won't be able to access two-channel and three-channel 2.5 GHz configurations.
source: FierceWireless via Phonescoop