Samsung Galaxy Note 4 LTE-A with Snapdragon 810 unveiled: 300Mbps speeds, release date set for January 2015
At 300Mbps, a 700MB video can be downloaded in 19 seconds. 10 songs, or 40MB of tunes, will take all of one second to load. To take advantage of such speeds, you need to be connected to a tower that actually supports tri-band carrier aggregation. The 300Mbps dataspeed is four times faster than garden variety LTE.
There is no word on pricing or availability of the Samsung Galaxy Note 4 LTE-A. It is extremely doubtful that Samsung will be offering this version of the Note 4 in the U.S. Earlier this year, when the company announced the Samsung Galaxy S5 LTE-A, it was made clear that the device would be available only in South Korea. There since have been rumors of a Galaxy S5 LTE-A made for European markets, although that model has yet to get past the speculative stage.
source: Samsung via AndroidCentral