1GB (or 1024MB) is about the minimum data allowance you’re likely to want per day on your trip.
As a rough guide, 1GB of data would let you do one of the following:
The answer to this question largely depends on your online activities. If your usage primarily involves browsing the web, using navigations, sending emails, and occasional music streaming, 1GB should be sufficient for a day.
However, if your daily activities involve more data-intensive tasks like scrolling through social media, watching videos, video conferencing, video streaming, or online gaming, 1GB may quickly run out.