How to Stay Connected While Traveling (2026)

International cellular data is solved if you set it up right and a nightmare if you don't. The combination of eSIMs, modern roaming plans, and travel routers means most travelers can stay fully online for the entire trip at reasonable cost. Here's the setup that works.

Path one: eSIM services. Airalo, Saily, and Holafly are the leaders. You buy a data plan for your destination country before you fly, install the eSIM via QR code in your phone settings, and activate it when you land. No SIM card swap, no airport SIM hunting, no language barriers. Plans typically range from $5 for 1 GB / 7 days to $40 for 20 GB / 30 days, depending on country. The eSIM keeps your home phone number active — calls and texts still work — while data routes through the local plan. This is the most flexible option for most travelers and the best default for international trips.

Path two: your home carrier's international roaming. T-Mobile's Magenta and Go5G plans include free 5G data and texting in 215+ countries with no setup required. Verizon's TravelPass charges $10/day for international data and calling. AT&T's International Day Pass is similar. The math: if you're traveling 10+ days in countries with strong T-Mobile coverage, T-Mobile's free included roaming usually wins. For Verizon and AT&T users, eSIMs almost always beat the daily-fee plans on cost.

Path three: physical SIM cards. Buying a local SIM at the airport on arrival is the old standard and still works. Costs are typically lower per gigabyte than eSIMs in some destinations (especially Southeast Asia, India, Mexico). The downsides: you have to physically swap your SIM (impossible on iPhone 14+ in the US, which are eSIM-only), your home number stops working during the trip, and the language barrier at the SIM kiosk can be frustrating. Use this option when you're staying in one country for weeks and the cost difference is meaningful.

The travel router. A small device like the GL.iNet Beryl AX ($120) creates a single secure wifi network from any internet source — hotel wifi, eSIM data, or a public network. You connect your laptop, phone, and tablet to the router instead of to each network individually. Benefits: you stay logged in across networks, you put your VPN on the router so all traffic is secured automatically, you can share a single eSIM data plan across all your devices, and you're protected from sketchy public wifi. For anyone traveling with multiple devices, the travel router earns its space.

VPN. Public wifi at hotels, cafés, and airports is often unsecured. Even password-protected hotel wifi is shared with hundreds of strangers and isn't private. A VPN (NordVPN, ExpressVPN, Mullvad) routes your traffic through encrypted tunnels and is the right baseline for any travel that involves work or accessing sensitive accounts. Most VPNs cost $3–6 per month with a yearly subscription.

Practical phone setup before any international trip. Enable Wi-Fi Calling so you can call and text via wifi when cellular doesn't work. Download offline maps for your destinations (Google Maps offline regions are excellent). Download offline language packs (Google Translate works without data when packs are downloaded). Save important contacts and documents to your phone before leaving — don't depend on having connectivity to find your hotel address. Set up Apple's Find My or Google's Find My Device for both your phone and any AirTags so you can locate devices that wander.

What not to do: don't rely on hotel wifi alone for the whole trip — it's slow, sometimes broken, and shared. Don't pay airport SIM kiosk markup ($30 for what costs $10 elsewhere). Don't enable international roaming with an unknown daily charge — the bill at the end of the trip is often shocking. Don't use public wifi for banking, work, or sensitive accounts without a VPN. The setup overhead is small; the benefits compound across the entire trip.