Simple Mobile's 15GB plan for 1 line costs $40 per month.
It rides on the Verizon network for coverage.
It includes unlimited minutes, unlimited texts, and 15GB of high-speed data per month. After your high-speed allotment, you get unlimited slow data at 128Kbps. You can use up to all 15GB of data as hotspot data. Video streams at 4K quality.
The Simple Mobile 15GB plan has deprioritized data. Having deprioritized data means you may temporarily experience slower speeds during times when the cellular network is busy. You'll resume getting the fastest speeds available when the network is no longer busy.
Overall, I do not recommend the Simple Mobile 15GB plan. It is too expensive for the features and data you get.
Check out my current ranking of the best cell phone plans for plans that will give you a better value for your money.
You can also check out these plans with the same coverage and data amount (scroll left and right to browse plans):