The small 11.6-inch Chromebook will have integrated LTE capabilities catered specifically for use on Sprint's 4G network. Instead of giving it away for free as an incentive for new customers, however, the carrier will charge upfront for the device on top of the $15 per month wireless plan required to use it.
https://www.notebookcheck.net/Sprint-launches-LTE-ready-CTL-NL7-Chromebook-for-299.362951.0.html