Using an eSIM in Zurich

What Zurich is like on a phone

Zurich draws people for work about as much as for holiday: two-day meeting trips, stopovers before heading up into the mountains, and anyone using the airport here as the gateway to the Alps. The city itself is compact and walkable, while trams and suburban trains reach the foot of a mountain in well under an hour. Coverage is consistent along the lake and through the office districts. What separates it from a large city in the European Union is that Switzerland sits outside the EU, so Europe-wide plans commonly list this country separately.

When you land

Zurich Airport (ZRH) has its station beneath the terminal, ten to fifteen minutes from the Hauptbahnhof, and international trains from Germany, Austria or Italy arrive at the same terminus. Switch the line on inside the terminal, because you will need to buy a rail ticket and may need a seat reservation for an onward mountain service. The run into town keeps service nearly throughout, with short tunnel stretches going quiet before the train reaches the Hauptbahnhof's stacked underground platforms.

Where coverage changes

The lakeside, the office districts and the old streets by the river stay connected throughout. The narrow stone lanes of the old town, walled on both sides, weaken a little without dropping out. The Hauptbahnhof's stacked underground platforms are where speed visibly falls at rush hour. Take a rack railway or cable car up one of the nearby summits and the viewpoint at the top is good while the wooded stretches and gullies on the way are not. Long rail tunnels under the mountains stay quiet until you come out the far side.

What a day here costs in data

A working day in town runs about 800MB to 1.5GB once online meetings are in the mix, since video calls dominate a trip like this. A pure sightseeing day sits lower, roughly 500MB to 900MB, because the distances are short and the transport is easy to read. If a mountain is on the same day's plan, download the timetable and the trail map first: up there is exactly where you want information most and have signal least.

Districts travellers ask about

• The old town on both banks of the Limmat: The narrow stone lanes take a little off the signal and nudge your position on the map — meet at a named church or bridge rather than a pin.
• Bahnhofstrasse and the banking district: A wide street lined with offices and hotels, steady enough for a video call, though basement meeting rooms in the older buildings fall away sharply.
• The lakefront and Seefeld: The promenade is open and connects well the whole way — good for a call on foot or for clearing photos before heading back.
• Zürich West: Old industrial halls turned into shops and offices: heavy steel and concrete mean the inside of some buildings receives distinctly less than the street.

Day trips out of the city

• The Rhine Falls at Schaffhausen: A short train with service all the way, but this is very close to the German border and a handset can swing onto the other side's network — check the plan's country list before you go.
• Lucerne and the mountains near it: The lakeside line has good service nearly all the way, broken only briefly in tunnels and where the valley narrows.
• Uetliberg: A short suburban train up; the open summit connects well while the walking paths down through the forest thin out in places.