According to these sites, these phones don't have standalone GPS. They all have A-GPS only. They don't have S-GPS
Samsung Galaxy Note 4 - Full phone specifications
Samsung Galaxy S5 - Full phone specifications
Samsung Galaxy Note 3 - Full phone specifications
Samsung Galaxy Note 4 specs
Samsung Galaxy S5 specs
Samsung Galaxy Note 3 specs
For those first set of links, they all say "Yes, with A-GPS..." That means they have a standalone GPS chip and A-GPS (along with other forms of positioning that a device might have). It doesn't mean that location is just done only via A-GPS. Look up pretty much any Android phone on GSM Arena (going all the way back to the Original Droid...which they only have listed as the international Milestone version), and you'll see the same phrasing.
For the second set of links, they all say "GPS, A-GPS..." That clearly notes GPS.
Having a standalone GPS chip is a requirement set down by Google in order to have access to Google apps and the Play Store. They all have standalone GPS.