I never had a need for LTE, just connect to my iPhone when needed since I already pay for that unlimited data.
I have T-Mobile One Plus on my phone, which provides more than enough high-speed data for my monthly tethering needs. Saves me the $150 investment and $20/month charge to just get the WiFi model and tether when necessary. I did get the LTE model when I bought the 9.7” Pro, but that’s when T-Mobile had 200MB of free monthly tablet data. Don’t think I ever utilized it for more than that.
Oh yeah devices got grandfathered in but you can’t set up new devices with it anymore unfortunatelyThey don’t have that anymore? I’m still rocking it on my 9.7” pro
I couldn’t tell you all of that maybe you should give them a call, but I’m pretty sure you just have to purchase the Sim card and I think you can do whatever you want with it with the data plan