How much mobile data does an international trip need?

1. Estimate frequent apps first

Maps and messaging are usually modest; short-form video, HD streaming and cloud backup consume data much faster. Start with the data estimator.

System updates, photo syncing and occasional tethering add usage. A buffer of about 20% is a useful starting point.

Disable video autoplay and mobile photo backup. Download offline maps, music and language packs before departure.

For a short trip, a plan that allows top-ups can be better than buying far too much. Check throttling, hotspot support and coverage.