How much mobile data do you need for travel?

Start with the way you actually use data

Use recent mobile-data usage from your phone as a starting point. Separate Wi-Fi use from mobile use, and consider whether your travel routine will be different.

Maps, messaging, app calls, photos, video and cloud backups have different patterns. A laptop connected by hotspot can use data that does not appear to be phone browsing.

Multiply by the days you need coverage

Estimate = daily data × travel days × the extra-data factor. A 20% extra-data margin uses a factor of 1.20.

For example, 0.3GB per day for seven days with a 20% margin is 2.52GB. These are example inputs, not a claim about everyone's daily usage.

Compare 1GB or 5GB with your estimate

A 1GB allowance may fit a low estimate, while a larger estimate needs more data or suitable top-up options. The useful comparison is your expected consumption over the package's validity.

A 5GB label says how much data is included, not how long it will last for you. Check duration and whether installing or first use starts the validity window.

• Compare and buy a travel eSIM

Review unlimited and hotspot terms

Read any fair-use policy, high-speed allowance, speed restrictions and hotspot rules. An unlimited label does not define every usage condition.

If you will share data with another device, include that device's streaming, updates and cloud synchronization. Use the selected package's rules when comparing options.

• Understand unlimited data and hotspot

Keep an eye on allowance during the trip

Review the order's remaining allowance and last update where available. Usage readings can be delayed; an unavailable reading does not establish that no data was used.

If the estimate changes, review any top-up offered for that eSIM rather than assuming a new purchase or deleting the profile is necessary.

• Understand eSIM top-up