Hello! Thanks for your inquiry. All the lines on the family plan will get unlimited 4G, talk, & text & 8GB hotspot? A new customer can qualify for the free phone and discounted phones promotion. This offer will be available until 7/10/2017. Some Sprint devices are compatible with our service, so it will depend on the model. Yes, you get a $5 discount if you enroll to Autopay. If you have any doubt, feel free to ask.