Claims 23 LTE bands with up to 300Mbps, that means it is a category 6 LTE UE which means you will only get that if the carrier you are using has deployed Carrie

Claims 23 LTE bands with up to 300Mbps, that means it is a category 6 LTE UE which means you will only get that if the carrier you are using has deployed Carrier Aggregation and you have a really really good signal and the you Carrier deployed backhaul that can handle that speed. So, don't hold your breath !