You are halfway through a week-long trip and your phone feels slower than this morning. Is your data running out, or is something else going on? Knowing where to check and what the numbers mean keeps you from guessing.
Many travelers assume their eSIM stopped working when the real issue is something different entirely. Start by checking your actual data usage before troubleshooting anything else.
| What you notice | Most likely explanation | First check |
|---|
| Speed dropped to a crawl | FUP throttle on an unlimited plan | Check daily data usage (section below) |
| "No data" but signal bars showing | Data roaming may have turned off | Verify Data Roaming is ON for your eSIM line |
| Data works but feels slow | Background apps consuming bandwidth | Turn on Low Data Mode |
| Data completely stopped | Plan fully consumed or expired | Check remaining data below, then browse plans if you need more |
If the issue is speed rather than connectivity, read our
slow internet diagnosis guide for targeted fixes.
- Open Settings > Cellular.
- Scroll down to the CELLULAR DATA section.
- Find your travel eSIM line. It will show a number like "1.2 GB" next to it.
Before you trust that number, check one thing: scroll to the very bottom of the Cellular screen and look at Last Reset. If you never reset the statistics counter before your trip, the number you see is lifetime usage for that line, not trip usage.
To start counting from zero:
- Scroll to the bottom of Settings > Cellular.
- Tap Reset Statistics.
- Do this when you arrive at your destination, not before, so the counter only reflects your travel data.
- Open Settings > Connections > Data Usage.
- Select your travel eSIM from the line selector at the top.
- You will see a usage graph for the current billing cycle with the total consumed.
Samsung and Pixel devices usually track per-line usage separately. If your phone combines both lines into one total, set a billing cycle start date matching your departure day so the graph only shows travel data.
Not all apps consume data equally. If your plan is running low, these are likely the culprits:
- Video streaming (YouTube, Netflix, TikTok): approximately 1 GB per hour at high quality
- Video calls (Zoom, FaceTime, WhatsApp video): approximately 500 MB per hour
- Social media with auto-play (Instagram, Facebook): approximately 500 MB per hour
- Music streaming (Spotify, Apple Music): approximately 100 MB per hour
- Maps and navigation: approximately 50 MB per day (very light)
To stretch a limited plan, download offline maps on WiFi before you leave your hotel and switch video streaming to a lower quality setting.
We send email notifications when your plan hits 80% and 100% of the included data. If you received the 100% alert and data has stopped working, your plan is consumed. You can
browse destination plans to purchase additional data for the rest of your trip.
For speed issues that are not caused by running out of data, see our
slow internet speed guide.
