This dirt-cheap phone got buried in the recent Sensa phone thread. It quickly went OOS from that thread, but just came back in stock today. Putting YMMV in the title because it goes in and out of stock.
For $10, you get a dumbed-down LG X Power 2 with a 5.5 inch 720p screen. Locked to Simple Mobile (a T-Mobile MVNO), and no one claims they have found an unlock. I am finding mine works on Wifi without nag screens. Shipped with Nougat.
On the Plan page scroll all the way down, and there is a No Plan option. Then it says shipping is $15 but waived.
Be careful ordering more than one, especially in one order, the last thread indicated cancellations.