If you are referring to the tablet coming with 16GB, that may well be the case. However, that doesn't mean you will have access to them.
When they advertise how much 'space' is on a device, they are listing the total space. That isn't telling you how much is used up by the OS, preinstalled apps, etc. So the amount of space you actually have access to is usually way less than the advertised amount. So one should always ask as to how much space you actually have access to when looking at devices. Either that, or stick with devices that have much more space (higher GB) listed as then you will have more that you can access/use.