Xenoblade Chronicles X's world is more than 5 times bigger than in Xenoblade
Here's the quote from EDGE:
“Vehicles are called Dolls. They are 5 Times larger than a person. So to get the same feel as Xenoblade Chronicles, the map would need to be 5 times bigger. The game world in X is in fact even bigger than that.”
Xenoblade Chronicles X's world is more than 5 times bigger than in Xenoblade