Boost Mobile offers the new 2018 Apple iPhone Xr, iPhone Xs and Xs Max for $ 100 off MSRP. Their discount reduces the price of an Xs to $ 899 for the 64 GB models and $ 999 for 64 GB Xs Max. The price for bast 64GB iPhone Xr falls to $ 649.
Order online, then select a Boost unlimited plan when the phone arrives. Boost Mobile is part of the Sprint network, and offers plans starting at $ 50 per month for a line. No annual contract is required.