Two things.
First, RF performance has nothing to do with speeds. lilotimz's post is fairly accurate in assessment of RF performance. Just because it's slightly weaker on RF does not mean it will have slow speeds. Once connected, speeds will still be very fast.
Second, 800MHz LTE will not be faster than 1900. It will be the same configuration as Sprint's current PCS LTE, except in areas where the SMR spectrum is limited for Sprint. Therefore, it will have the same theoretical max of 37.5Mbps.
I could have sworn I read that the recently feed up 800 was going to be faster. I need to apologize for my lack of backup evidence as I cannot for the life of me remember where I read it.
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