It says that I have 3.10 GB free of 16.00 GB. But, by looking at the picture, it seems like I have much more free space then 3.10 GB. I purchased this tablet a couple of weeks ago and there should be plenty of space.
https://s23.postimg.org/m47pxigx7/Screenshot_2017_01_08_16_04_49.png
https://s23.postimg.org/m47pxigx7/Screenshot_2017_01_08_16_04_49.png