Handheld gaming devices are getting more powerful all the time. The older models used to be great only for retrogames. The new ones have powerful enough processors for more top titles. Take the ONE XPLAYER 2 Pro for instance: it is an AMD Ryzen 8840U handheld gaming computer with 8 cores and 16 threads. The 2 Pro has detachable controllers and can be paired with a magnetic keyboard for serious work. It has a full USB 4 port and supports external graphics cards.
This gadget has laptop and tablet modes. It has 32GB RAM (7500MHz) and NVMe M.2 SSD. It runs on a 17100mAh battery. A big problem for these tiny handheld devices is throttling that happens due to high temperatures. This model has a PC-level fan, copper tubes and aluminum fins. You can find a USB 3.2 port on one side and USB 3.0, USB-C 4.0, 3.5mm audio port, and a MicroSD port on the other. The 2 Pro has WiFi 6E and Bluetooth 5.2.