You have two main options. If you want data wherever you go, your best bet is to sign up for one of the best international eSIM providers for digital nomads. An eSIM is essentially a non-physical SIM card (if supported by your phone), which you can use to access mobile data as soon as you land in another country. However, depending on the provider, they often don't include minutes for calls, or SMS functionality – but you can at least use online messenger apps like WhatsApp, Signal, etc. If you want the ability to make phone calls and send SMS message, you should look at the best virtual phone number apps. These allow you to both send and receive calls and text messages over a data connection. Especially if you're an active freelancer or small business owner, this can be an incredibly important and surprisingly cost-effective option to stay in touch with clients, as well as family and friends around the globe. For the best of both worlds, it's worth considering combining an eSIM with a virtual phone number! Of course, if you have good WiFi access on your travels, you can also ditch the eSIM and just go with only a virtual phone number if calls and SMS are all you need.