If you have Google Fi for your main phone (20$/mo + 10$/GB) you can add up to 9 data-only SIMs for 0$/mo + 10$/GB. The per GB is really fair (I think it rounds

If you have Google Fi for your main phone (20$/mo + 10$/GB) you can add up to 9 data-only SIMs for 0$/mo + 10$/GB. The per GB is really fair (I think it rounds to the nearest MB and everything left over rolls over to the next month). https://support.google.com/fi/answer/6330195?hl=en https://support.google.com/fi/answer/6330195?hl=en