[Rodney Dangerfield]

Android 4.4.4 with service provided by MetroPCS gives me unlimited 4GLTE Data for $50.00 a month at 25MBPS+

Use about 20GB per month.

Most providers should throttle speeds down to 3G when using their monthly allotment of 4G data.

[T-Bone Texan]

You should consider the Cat S50c rugged smartphone.

Or not; whatever.

5G is on the way!