The newborn size is different than other sizes, and is also only sold in bundles vs. individually.
Closure tabs are elasticized and attach in the back like other gPants however, they are shaped such that you can easily close them in the front, which (in my opinion) is easier with a newborn!
The biggest difference is that the pouch is integrated with the gPant vs. a separate snap-in piece like the other sizes.
They are designed to fit babies from 6-10 pounds, and the company suggests you use the newborn/small gCloth or disposables inserts with them.
The front snaps down to offer two size settings.
In comparison, here’s my “model” in a preemie disposable:
Have you used gDiapers newborn diapers?