It's not the same, Google Keyboard has the swipe feature but it is nowhere near as accurate as the Swype and SwiftKey keyboards. This is just my opinion, YMMV .
Works very well for me, especially the constructed word that moves with my finger.
The only problem I have with it is that it in some contexts (e.g. when doing a google search) it hides the suggestion bar, not allowing to choose similar words.