Checking out the specs it seems your phone is much better than any of the cameras listed, the only think lacking is a zoom. For that I also suggest taking the Nikon with you. Your phone will probably be your main camera, but the Nikon is compact enough that you can fit it in a pocket and use it when needed.
I second Ken and advise you to get some experience with the Nikon before the trip, so you'll know the controls and quirks and won't miss out on pictures.