NeweggFlash offers the refurbished FreedomPop Wireless 4G LTE 803S Hotspot, model no. SRA-AC803SR, for $59.99 with free shipping. That's the lowest total price we could find for a refurb by $40. It provides WiFi for up to eight devices and includes 500MB of free service each month. It also includes a 1-month Premier service trial. Normally $9.99 per month, Premier lets you rollover your 500GB monthly data up to 20GB total.
A 1-year warranty applies, although it's unclear who backs it.