Essential Products has revealed that there are no plans to add "new inventory" to its stock of Essential Phones, which basically means the device is being discontinued. The smartphone was released in August 2017 and was widely commended for its design and performance. It's believed around 150,000 of the PH-1 devices were sold.
https://www.notebookcheck.net/Essential-Phone-now-out-of-stock-permanently.387836.0.html