How much mobile data do I really need for travel? A breakdown by use case

Travelers consistently overestimate how much mobile data they'll use. The truth: a typical 7-day European trip burns through 2-4 GB, not 20.

Real-world data consumption

Photo backup is the silent killer

iPhone's automatic iCloud Photos backup will silently upload every photo and video over cellular if you let it. A single iPhone 15 Pro video at 4K can be 400 MB. A day of heavy photo-shooting can burn 2-3 GB.

Fix: Settings → Photos → Mobile Data → toggle OFF "Unlimited Updates". Backups will resume when you find Wi-Fi.

By trip length and style

• 3-day city break, light usage: 1-2 GB. Maps, WhatsApp, occasional Instagram. Skip Netflix.
• 7-day vacation, typical: 3-5 GB. Add some photo uploads, an evening of streaming, occasional video call home.
• 14-day trip, heavy social media: 8-15 GB. Daily Instagram stories, frequent FaceTime, ~30 min Netflix on the train.
• Working remote (digital nomad): 20+ GB or unlimited. Slack, Zoom calls, large file uploads, tethering laptop.

The "I'll just get unlimited" trap

Unlimited eSIM plans cost 2-3× what a fixed-GB plan costs. Unless you're a remote worker tethering a laptop or you stream HD video 4+ hours a day, fixed plans are dramatically better value.

Worst case: you burn through your data on day 5, you top up in 2 minutes from your phone. Top-up is built into MobileXY — you don't need to buy a whole new plan.

Quick rule of thumb

Estimate 500 MB per day for light usage, 1 GB per day for typical usage, 2 GB per day for heavy social/video. Multiply by trip length and round up.

Need help picking? Use our trip data calculator or just check the plan catalog.