Turn Your Raspberry Pi 4 Into a Portable Tablet with the RasPad 3 for $219 (includes 10.1" touch screen, accelerometer and 5 hour battery)
Danie van der Merwe · news.movim.eu / gadgeteerza-tech-blog · Thursday, 18 November - 17:37
This is quite a nice kit to have and includes a self-contained Raspberry Pi 4 (Pi itself is not included) with a touch screen and battery power for around 5 hours. The battery is rechargeable, and all ports are accessible from outside, apart from the GPIO pins. The video shows how it all fits together and works.