Network operatorMajor network
Vodafone
One of Germany's major network operators, with strong nationwide coverage and 5G in most cities. Prepaid CallYa plans work well for students who want reliable, contract-free connectivity from day one.
Bibin's note"Vodafone costs a bit more than the discount brands, but the coverage is noticeably better if you're outside a major city."
Visit Vodafone →
SIM-onlyMost data per euro
sim.de
A low-cost SIM-only brand of Drillisch Online (United Internet), running on the 1&1 network. Allnet Flat plans include calls and SMS within Germany, EU roaming and free number transfer. Monthly-cancellable plans are available (these can carry a one-off setup fee). The eSIM is free and activates in minutes; a physical SIM is a one-off €2.99.
Bibin's note"You get far more data per euro here than from the supermarket prepaid SIMs, but this is a contract, not prepaid, so you'll need a German bank account for the direct debit. Start with a prepaid SIM in your first weeks, then move to sim.de once your account is open."
See sim.de plans →
Network operatorGood value
O2
O2 (Telefónica) runs one of Germany's major networks, strong in cities, with competitive prepaid data plans. A solid direct-from-carrier option if you want more data per euro than Vodafone or Telekom.
Bibin's note"O2's own coverage is weaker in rural areas, but if you're studying in a city, it's usually the cheapest of the major networks."
Visit O2 →
PrepaidBudget option
ALDI TALK
A prepaid SIM sold in ALDI supermarkets, running on the O2 network. One of the most popular budget options among students: affordable 4-week data plans with no contract or German bank account required.
Bibin's note"This is what a lot of students in the community use for their first German number: easy to find in any ALDI, and simple to top up."
Visit ALDI TALK →