This is a very simple, very easy, and semi-cheap Raspberry Pi Tablet. It is compatible with any B-Model Raspberry PI (Raspberry Pi 4 B).
The screen (Osoyoo Capacitive touch screen) can be found here: https://www.amazon.com/OSOYOO-Capacitive-Connector-Resolution-Raspberry/dp/B07KKB5YS9.
The Battery Pack is a Pi Sugar Pro 2, which seemed to be the easiest solution. It comes with a 5,000 mAH battery. It can be found here:
https://www.amazon.com/Pisugar2-Portable-Platform-Raspberry-Accessories/dp/B08D8PPCKN/ref=sr_1_1?dchild=1&keywords=pisugar2+pro+2&qid=1616420010&s=electronics&sr=1-1
STL files for the case are here:
https://www.thingiverse.com/thing:4802651
ASSEMBLY VIDEO HERE: https://youtu.be/AB3kinfhc7k
Thank you all for the support of this project! Here are my thoughts after using it for two weeks.
The screen
The 5 inch DSI screen is great to use. While it is smaller than some present-day phones, I would compare the usage of it to an iPad. It is very responsive, and Chromium has multi-touch build in. However, I could not get a right click button outside of Chromium.
HDMI ports
I wanted to be able to use the HDMI ports along with the 5 inch screen. I have not been able to achieve this, yet. It might be a problem with my Raspberry Pi, not others.
Audio
I did not include speakers or a microphone with this project. I wanted the project to be simple, and I felt that the headphone jack would be all that I needed. While it is not the best, it gets the job done. When I make a second version of the tablet, it will definitely include better audio I/O.
Size/Portability
I wanted this project to be as simple as possible. I did not solder anything. A downside of this was the thickness of the tablet. However, I did not feel that it was too bulky. The device stands up on its own, at an angle that is great to watch videos.
I have been working on other projects, but my plan is to make the device more modular.
Looks great.
What is that GUI you are using in the first image?