Buying data is guesswork until you know what your apps burn. Here are honest figures, then three traveler profiles to match yourself against.

What common apps consume

  • Google Maps navigation: ~5–10 MB per hour (offline areas: nearly zero).
  • WhatsApp texting: negligible; voice calls ~0.5 MB/min; video ~5 MB/min.
  • Instagram / TikTok scrolling: the budget killer — 100–200 MB per 20-minute session.
  • Spotify streaming: ~50 MB/hour (normal quality).
  • YouTube / Netflix: 700 MB–3 GB per hour depending on resolution.
  • Email, banking, translation: a rounding error.

Three traveler profiles

Light — 1–3 GB per week

Maps, messaging, a few photos to the family chat, restaurant lookups. Download offline maps and city guides before flying and 1 GB can stretch a full week.

Standard — 5–10 GB per week

Everything above plus daily social media, photo backups and the occasional video call home. This is where most people land; 1 GB/day unlimited-style plans also fit here.

Heavy — 15 GB+ or unlimited

Hotspot for a laptop, streaming in the evenings, posting Reels from the beach. Look at high-cap or daily-unlimited plans instead of paying for overage twice.

Rules of thumb

  • Estimate, then add ~30% — trips never go as planned.
  • Two weeks+? Daily-allowance unlimited plans usually beat giant fixed bundles.
  • Traveling as a couple? One generous plan + hotspot often beats two small ones.

Plans from 1 GB to unlimited, priced up front: check your destination.