FreedomPop offers its FreedomPop 4G LTE Nationwide SIM Kit bundled with a FreedomPop Premium Unlimited Talk, Text, 2GB 4G LTE Data 1-Month Trial for 99 cents with free shipping. That's a savings of $46 and the lowest price we've seen for a 4G SIM kit from FreedomPop, although we saw it with an extra 1GB of data in April. It's compatible with most unlocked GSM smartphones.

Note: Be sure to switch to the free 200MB/month data plan before your free monthly trial expires; otherwise, you'll be billed $24.99 for every additional month.