Remember, I'm only guessing based on the FCC band certifications. The 1700 bands it's certified for leave a big open space because AT&T, Verizon, and T-Mobile all use those bands for LTE. And AT&T, C-Spire, and US Cellular use the lower 700 blocks. The amount of LTE band support on this device is great, and I don't know if they could pull this off in a phone. If it turns out to be a phone, then I'm assuming it'll be at least a 5" screen.