Everything You Need to Know About International Data Bundles
International data bundles let travellers pre-purchase a fixed amount of data (100MB to 1GB) for a set country or region, avoiding unpredictable pay-as-you-go roaming charges. Bundles are available for the UK, USA, Europe, Australia, Asia, Canada, Brazil, Saudi Arabia, and globally, and can cost a fraction of standard pay-as-you-go rates.
Why Use a Data Bundle?
Estimating data usage while travelling is difficult, since browsing habits change abroad—more reliance on WiFi, and data roaming is often switched off due to high costs. This usually means using far less data than at home. Data bundles solve this by offering a fixed, prepaid amount of data, so spending is capped and usage can be tracked without risking an unexpectedly high roaming bill.
Where Are Data Bundles Available?
Bundles ranging from 100MB up to 1GB are available for the following:
- UK
- USA
- Europe
- Australia
- Asia
- Canada
- Brazil
- Saudi Arabia
- Global for travellers visiting multiple countries
Bundle Sizes and Duration
| Bundle Size | Validity Period |
|---|---|
| 100MB | 3 days |
| 200MB | 7 days |
| 500MB | Up to 14 days |
| 1GB | 30 days |
If all data in a bundle is used before it expires, another bundle can be added. Any unused data is lost once a bundle expires.
How Much Can You Save?
Bundles are considerably cheaper than pay-as-you-go data. As an example, 1GB of USA data on pay-as-you-go could cost around £235, compared to around £53 for the same 1GB in a bundle.
Note: pricing is subject to change. Confirm current rates on the WorldSIM top-up page before purchasing.
How Do I Add a Bundle?
A bundle can be added to any WorldSIM SIM card, except very old ones, which can be upgraded for free. If you already have a WorldSIM SIM card, visit the bundles tab on the top-up page. If you don't yet have a SIM, you can get a free data SIM and pay only for the bundle. International SIM cards and UK SIM cards must be ordered first before bundles can be added.
How Do I Activate a Bundle?
Log in to My Account and open the My Bundles tab to see any bundles you've purchased. Click Activate when ready to start using it. A future start date can also be set within My Account.
Getting an Error When Adding a Bundle Top-Up?
This typically means the SIM in use is an old data SIM that needs a free upgrade. Order a new SIM following the steps above, and once it arrives, contact support by phone or Live Chat to transfer any remaining balance from the old SIM to the new one.
Will the Bundle Use My Pay-As-You-Go Credit?
Pay-as-you-go credit and bundles can both be added to a WorldSIM SIM. While an active bundle applies to the country you're in, bundle credit is used first. Once the bundle expires, remaining pay-as-you-go credit will then be used.
Can I Purchase a Bundle Using Existing Credit?
Yes. On the bundle tab of the top-up page, select the desired bundle. Near the Add to Basket button, there is an option to dial a short code, typically something like 99901, to complete the purchase using existing credit.
Are Bundles Available on WorldSIM International or UK SIM Cards?
Yes, bundles can be added to all WorldSIM SIM cards. Since currently only data bundles are offered, UK and International SIM users should keep some pay-as-you-go credit topped up as well, to ensure calls can still be made and received.
Do I Have to Manually Select a Network for My Bundle?
Bundles only work with preferred networks, so it's important to check that you're connected to one. If not connected to a preferred network, pay-as-you-go credit will be used instead, and if there is no credit available, the bundle cannot be used unless a preferred network is manually selected. View the list of preferred networks on the WorldSIM website.
Frequently Asked Questions
Where are international data bundles available?
Data bundles from 100MB up to 1GB are available for the UK, USA, Europe, Australia, Asia, Canada, Brazil, Saudi Arabia, and a Global bundle for travellers visiting multiple countries.
How do I add a data bundle to my WorldSIM SIM card?
Bundles can be added to any WorldSIM SIM card except very old ones, which can be upgraded for free. Visit the bundles tab on the top-up page if you already have a SIM, or get a free data SIM and pay for the bundle if you don't. International and UK SIM cards must be ordered before bundles can be added.
How do I activate a data bundle?
Log in to My Account, click the My Bundles tab, find the bundle you purchased, and click Activate when you're ready to start using it. You can also set a future start date for the bundle in My Account.
What should I do if I get an error adding a bundle top-up?
An error usually means you have an old data SIM that needs a free upgrade. Order the new SIM, and once it arrives, contact support by phone or Live Chat to transfer any remaining balance from the old SIM to the new one.
Will a data bundle use my pay-as-you-go credit?
No, not while the bundle is active and applicable to the country you're in. Bundle credit is used first. Once the bundle expires, any remaining pay-as-you-go credit will then be used.




