Samsung has revealed its first tri-fold phone, and it runs the Korean giant’s DeX desktop environment without the need for an external monitor.

DeX debuted with 2017’s Galaxy S8 range and allowed users to connect their smartphones to a monitor, keyboard, and pointing device. The software presented a WIMP interface that more closely resembled ChromeOS than Windows.

The Register tested DeX and found it impressive, but also a solution in search of a problem . Samsung has kept DeX alive ever since, and some of its tablet computers can run it natively in addition to offering a standard Android interface.

Now DeX can also run natively on a smartphone – or at least on the Galaxy Z TriFold that Samsung announced today.

Like Huawei’s Mate XT , Samsung’s three-screen-machine can face the world i

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