A business week uses data differently from a holiday, and Berlin adds one specific problem that catches people out underground.
Berlin is one of the more common UK business trips, and the connectivity profile of a working week there is genuinely different from a holiday week anywhere. The volume is lower and the reliability requirement is much higher, which is the opposite trade-off from a beach trip.
A working week uses less than a holiday week
This surprises people. A business trip involves less navigation, far fewer photographs, and much less idle scrolling, because you are working. Most of the day happens on office or venue Wi-Fi.
What replaces that volume is a smaller amount of traffic that absolutely has to work: joining a call from a taxi, finding a meeting room in a building you have never been to, and checking something on the way between appointments.
The U-Bahn problem
Berlin’s underground network has variable connectivity. Some lines and stations are well covered, others less so, and the tunnels between stations are frequently dead. If you are moving across the city between meetings, expect your connection to come and go.
This matters more than it would on holiday because the traffic you are carrying is time-sensitive. A dropped connection while scrolling is nothing; a dropped connection while joining a call you are two minutes late for is a different experience.
THE HABIT THAT SOLVES IT
Join calls before you go underground, not after. Audio holds up remarkably well through intermittent connectivity once the call is established — it is the joining that fails.
And download the transit map. Berlin’s network is large and the app becomes considerably less useful without a connection.
Coverage above ground
Good, across Berlin and the other major German cities. Germany’s rural coverage has historically lagged its neighbours in some regions, which matters if your week includes travelling to a plant or an office outside a city — worth expecting thinner service on the way rather than being surprised by it.
The ICE trains between cities are generally well covered along the main corridors, with the usual tunnel interruptions.
Calls, and what they cost in data
If your working week involves several video calls, that is the number that decides your plan size. Video calling is among the heaviest ordinary things a phone does, and an hour of it can use more than a day of everything else.
A week with daily video calls on mobile data needs meaningfully more than a week without them. If most calls happen on office Wi-Fi and the mobile plan covers the gaps, a mid-sized plan is comfortable.
Choosing a plan
For a working week, a mid-sized plan over a comfortable window is right for most people, sized up if the calls are happening on your phone rather than on venue Wi-Fi. Our Germany plans start at $11.90 and the plan page shows current sizes.
If you travel to Germany regularly rather than once, a longer plan over a longer window costs less per gigabyte than buying a new one each trip, and there is nothing to remember before each departure.
Tethering a laptop
Common on business trips and worth planning for. A laptop tethered for a working day uses considerably more than a phone does, because everything a laptop does in the background is larger. If tethering is part of your normal working pattern, size for it rather than discovering it on day two.
Your UK number stays active throughout for calls and texts, which on a business trip is usually the point.
