To be honest, Guesture Navigation has been terrible on Samsung phones and tablets. In portrait mode, it would take years to recognize that you are using the guesture. The transition is always laggy and show a cheap fealing. In landscape mode, it's just simply not usable.
More annoyingly, if you turn the hint on, there would be a big ugly bar in the background of the guesture bar.
This is a total total disaster for a $1200 cellphone. It is even more unacceptable that a $800 iPhone has been made this silk smooth for years. Even Huawei has done much better than Samsung. The worst, Samsung doesn't even mentioned improving this.
