A recent Galaxy S8 speed test performed by T-Mobile reveals gigabit LTE speed capabilities meaning that Samsung's two newest smartphones will potentially be capable of reaching those speeds for downloading, though it's worth noting that the speed test was done in a lab controlled environment and not out in the real world on T-Mobile's already existing network infrastructure that customers are connecting to.
That being said, this is still an impressive accomplishment both for T-Mobile as well as Samsung, as the Galaxy S8 and Galaxy S8 Plus are going to be among the first phones that are capable of reaching these speeds, and that's good news for anyone who is planning on grabbing one of these devices once gigabit network speeds are available to everyday wireless subscribers. Until then, customers on T-Mobile's network with either of these new phones will be able to look forward to utilizing LTE-U, as both phones will be able to support that network standard when T-Mobile gets things up and running later in 2017.
While not technically achievable just yet in real-world use, both chipset versions of the Galaxy S8 and Galaxy S8 Plus are essentially capable of hitting the speeds as the Qualcomm Snapdragon 835 and Samsung's Exynos 8895 processors allow for connection to LTE Category 16, of course reaching the speeds will simply depend on when those kinds of speeds are available on wireless networks, as the hardware has outpaced the networks at this point. This isn't anything new really as Samsung's flagships from last year did the same thing as they were capable of reaching LTE Category 9, but again these weren't speeds that were really available on wireless networks. When and if wireless networks are capable of delivering gigabit speeds though, Samsung Galaxy S8 and Galaxy S8 Plus owners can rest assured that they will have the necessary hardware equipped to handle it, which means extremely fast downloads and that means less time waiting around for installation of large app files or large files for software updates.