Roaming vs. Public Wi-Fi vs. VPN: What to Set Up Before You Travel

Anyone travelling abroad ends up choosing between a few ways to get online: mobile roaming, a local SIM or eSIM, and public Wi-Fi. Each has trade-offs, and a VPN can sit on top of any of them. Here is a simple way to think about the choice, without exaggeration.

Mobile roaming is the easiest option. Your phone keeps working with your normal number, but the price can be high and data caps are common. Check your plan's roaming rules before departure and set a data alert so there are no surprises.

A local SIM or eSIM is often cheaper for longer stays. Look for a reputable provider, confirm that your phone is unlocked, and install an eSIM profile before you leave if the provider allows it. Keep your home SIM safe, because some accounts still send verification codes to it.

Public Wi-Fi in hotels, airports and cafes is free and convenient, but you do not control the network. Confirm the exact network name with staff, finish the sign-in page before opening apps, and avoid sensitive logins when the connection looks odd.

Where does a VPN fit in? A VPN encrypts traffic between your device and the VPN server, which is helpful on shared Wi-Fi. It is not magic: it does not make you anonymous, and some places restrict VPN use, so read the local rules first. If you want a service to try, HZVPN is one option. Install it at home, test the connection, confirm with an IP-check page that your location changes, and run a DNS leak test.

Before you go, run through a short list. Update your phone and laptop. Install and test your apps on a stable connection. Save the official website of every service you rely on so you never have to search for downloads while abroad. Enable two-factor authentication using an app rather than SMS if you can.

With a little preparation, you can stay connected without paying more than you need to or taking unnecessary risks.