eSIM guides
Every eSIM article on the Switzerland eSIM blog, newest first.
New Year's Eve in Zurich: Lake Crowds and Staying Connected
The fireworks pull the whole city to one shoreline, transit runs a holiday schedule, and the network hits the same crowd saturation as any packed square.
Switzerland 2027: Easter Lowlands, Summer Alpine Passes
Easter 2027 falls early, while the high Alpine passes may still be closed for winter. How to split the trip into a lowland week and a mountain one.
Crossing Into Switzerland Weekly: Why a Tourist Setup Fails
A one-week Swiss trip and a weekly border crossing are different connectivity problems. What changes when the crossing becomes a routine, not an event.
The Border-Network Trap Near Geneva, Basel and Lugano
Why your phone can pick up a foreign network while you're standing in Switzerland, and the exact settings to force it back onto a Swiss one.
Do Tourists Actually Need a Swiss SIM Card?
An honest look at whether visitors to Switzerland need local connectivity at all, and why the answer usually points to an eSIM rather than a physical SIM.
Why Your EU Roaming Plan Might Still Charge You in Switzerland
Switzerland sits outside the EU roam-like-at-home rule. Here is the mechanism behind a surprise Swiss roaming charge, and how to avoid it.
Switzerland on a Europe Trip: One eSIM or Two?
If your itinerary mixes EU countries with Switzerland, here's an honest look at whether one pan-European eSIM covers the trip or you need a second.
Staying Connected on the Zurich–Interlaken–Zermatt Train Line
An honest look at signal along one of Switzerland's classic rail routes: where it's excellent, where tunnels interrupt it, and how to plan around both.