I don't have a great concept of data usage. Is it safe to assume 1GB of internet is enough for 4 days travel? Will be doing some web browsing and using Google Maps and GPS mostly.
*many*If you dont plan on watching videos or downloading them on whatsapp, 1gb should work. Maps will use some data because it needs to load the maps wherever you're going. I use crome on my phone heavily and I use a little under 100mb a day.