Source: Brian Wang
SpaceX Starlink is initially providing service to the northern United States and southern Canada. SpaceX states that by 2021 the company will provide service to the populated world.
Customers receive internet from the satellites in space via a user dish terminal and Wi-Fi router device. SpaceX sent and email to some potential beta customer describing the 19-inch dish terminal with mounting tripod and router cost $499 Upfront cost and the installation process.
Connection speeds are 50-150 mbps now and have 20-40 milliseconds of latency. By mid-2021, latency should be down to 16-19 milliseconds.