Well, T-Mobile may advertise that they have the fastest 4G LTE network, but if so, it certainly doesn’t exist in the 300+ mile range that I have traveled since getting my new Nexus 6P and moving to the RW 3.0 plans. My wife has my old Moto-X (2nd Gen) which is on the RW 2.0 plans on Sprint and wherever we go I test the speed of both phones using the Speedtest.Net app. With full bars of LTE showing on both phones, only once has my T-Mobile phone shown faster speed than my wife’s Sprint phone, and then only by a small margin. Usually the Spring phone is faster by several Mbps. At first I thought it was just the towers in my rural Eastern Oregon location, but after spending a few days on the Western side of the state, in Portland, Oregon, I found the results to be the same there. On my old Verizon phone I regularly saw speeds of 20 Mpbs to 40+ Mbps in the same areas.
Sometimes, even with full bars of LTE showing, I can only get 1 or 2 Mbps download speed, although it is usually in the 5 to 10 Mbps range. The Sprint phone is usually in the 10 to 20 Mpbs range in the same scenarios. For a while after activating the new phone I wasn’t even able to get a full 1 Mbps so I submitted a ticket to RW and they had me update the RW app on the phone and that helped considerably. Still, I’m quite disappointed with my LTE speed on T-Mobile.
Would be interested to hear from anybody else who has phones on both networks, and what speeds you are seeing.