You can get the Galaxy S10+ with up to 1 terabyte of storage. That's laptop-class storage “without the laptop,” as Samsung boasted on stage during the Galaxy Unpacked event today. Samsung also unveiled the 5G variant of the Galaxy S10 today.
This device does have some significant differences compared to the Galaxy S10+ including the fact that it does not have a microSD card slot. You can't externally expand storage on the 5G variant of Samsung's latest flagship.
The 5G Galaxy S10 has the largest display of the bunch, a 6.7-inch Infinity-O panel with an in-display fingerprint sensor. It even has a quad camera system at the back with a 3D Depth Camera being the additional lens. The other three are the same as the Galaxy S10+.
There's only going to be one configuration available for the Galaxy S10 with 5G. It will have 8GB of RAM and 256GB of storage. You'll have to make do with that much storage even though you can get four times as much on the Galaxy S10+. The 5G variant is limited to 256GB of internal storage. To top it off, it also has support for a single SIM card. You could always opt for cloud storage services for additional storage but microSD cards are firmly out of the question.