I have the so-called "Pal Gold" (according to my source, it should be called the Pal Survival now and is no longer offered with a gold belt) and the Pal OneStar.
The Pal Survival / Gold has a Nichia SMD LED in it, while the OneStar has a Nichia 5mm LED in it. The chip inside the LED is the same for both, but the driver circuitry is different between the two Pal models.
The OneStar puts out a PT Impact-like circular beam with a sharp cutoff, while the Survival puts out a more-or-less diamond or rectangular, very narrow beam.