I want to make a modern Pipboy from the Fallout series. But I want to run a Windows OS or Android OS with camera, Bluetooth, gyro, GPS, and SIM card and with a lot of programmable buttons and LEDs. I've never used a RPi so I don't know if it can do all the things that I need.
I want to run a Windows OS or Android OS
Unfortunately, this is not possible. Windows just isn't supported at all on the Pi (only a lesser version called Windows 10 IoT Core, which isn't much like the regular Windows). Android is equally problematic; while there are ways to install it, it is noted that:
No version of Android is officially compatible with the raspberry pi and therefore the version we will install is not optimized for our dear motherboard. It is therefore difficult today to use Android on a daily basis on its raspberry pi [sic] even if the installation we are going to present turns relatively well.
By far the most supported operating systems on the Pi are Linux-based (generally Raspbian is the best bet).
There are HATs for things like 4G, GPS, power and there is the Pi Camera Module which might be useful. That said, it may not necessarily be easy to bundle all of that into a convenient package; I would imagine the end product would be a bit heavy and bulky.
If you want some inspiration, take a look at Project ZeroPhone, where someone made a phone out of a Pi Zero. However, it was only connected to the 2G network, so probably can't rival modern smartphones.
Note: I don't disagree with other answers, but I think it's a shame no one on raspi.se has attempted to address how you could use a Raspberry Pi to achieve your desired results.
Although it doesn't meet all of your requirements, Adafruit has a guide for creating a Pip-Boy using a Raspberry Pi. The Pi uses an LCD screen and a Li-Ion battery and runs a pretty cool Pip-Boy interface (that is unfortunately written in Python 2). This was written a while ago and emulates the Pip-Boy 3000 (not Mark IV) from Fallout 3/New Vegas. This has the notable advantage of not requiring you to place your phone inside a carrier as well as having a hardware dial to switch screens (more realistic).
However, be warned that only one hardware dial is actually wired to the Pi and does anything and there is only one LED that simply lights when the device is powered on (although, I believe that is true to the Pip-Boy). Unfortunately creating a fully realistic Pip Boy with all the working knobs and dials would be prohibitively expensive for even the most enthusiastic of fans.
Here's a picture of the finished product.