Default Internal memory issues!

I'm a bit confused on what Nexus 4 variant I have. In AnTuTu, I have the following info:
Storage-Internal SD Card; 5503.5/5803.1 MB (5.37/5.66 GB)

In Fastboot Mode, I have the following info:

Product Name- MAKO
Variant- MAKO 16GB

I've tried different "fixes" and my internal storage always ends up with 5.67GBs. So, what am I to believe my phone should have?