We recently found out about GPD Win 1, which is a portable computer witd Windows 10 and a 5.5 touch screen.
The GPD Win 1 is a handheld gaming PC that runs on Windows 10. It features a 5.5-inch touchscreen with a resolution of 1280 x 720 pixels, an Intel Atom x7-Z8700 quad-core processor, 4GB of LPDDR3 RAM, and 64GB of eMMC storage. The device also includes a full QWERTY keyboard, an Xbox 360 gamepad embedded in its base, and various connectivity options such as USB Type-C, HDMI, Bluetooth 4.1, and Wi-Fi
The most recent one is GPD Win 4.
Links: