Choose between Vodafone, Telekom, and O2 based on your needs; learn about pricing, contracts, and required documents.
Choosing Your First SIM Card: Practical Steps
When you arrive in Germany, you need a SIM card right away. Your first option is to buy a prepaid card from a grocery store or train station — minimal documentation required. But if you're staying longer than a month, an annual contract is cheaper and more stable.
When signing up (online or in-store), you'll need:
Passport or ID card (digital copy sufficient online)
Residential address in Germany — even if temporary with a friend
Temporary phone number (hotel or host number works)
Bank details for monthly payments (German current account IBAN)
If you don't have a bank account yet, opening one with N26 or DKB takes 10–15 minutes online and your card arrives within 5 days.
Additional Charges and Key Concepts
International Calls
Calls to Morocco: €0.29–€0.49 per minute with most operators
International SMS: €0.19–€0.29 per message
Best solution: Use WhatsApp or Telegram (data only)
Extra Data
If your data runs out before month-end, additional packages cost €5–€10 for 5 GB
Most operators offer "throttling" (speed reduction) instead of cutting you off
Online vs. In-Store Contracts
Online
In-Store
Time
10 minutes
1 hour
Discounts
Usually better
Limited
Support
Email
Direct
Activation
1–3 days
Sometimes immediate
Practical Tips
Start with Prepaid if unsure about your stay length; you can upgrade later
Compare on sites like check24.de — they show the best current deals
Avoid long contracts initially; most German contracts are two years
Save your SIM number immediately — you'll need it for banking apps and job applications
Cancellation and Switching Providers
To switch providers, send a written request (regular mail or certified email) 6 weeks before your contract ends. Don't forget to request a porting number (Portierungsnummer) to transfer your number to another operator.
Frequently Asked Questions
Q: Can I switch providers after one month?
A: No — standard contracts are two years. However, Prepaid cards (like Blau.de or Congstar) have no commitment. Switch to Prepaid now and wait out your contract if unsatisfied.
Q: How much does roaming cost?
A: Within the EU: roughly the same rate. Outside it (Morocco, for example): €5–€10 for 500 MB. Use public WiFi or buy a local card there.
Q: What if I lose my SIM or phone?
A: Contact your provider immediately (emergency number is free). They'll deactivate the card and send you a replacement with the same number within 3–5 days (about €15 replacement fee).
Q: Do I need a formal written contract?
A: Yes — keep the email or first invoice. Providers send the full contract and terms by mail within 10 days. Keep it for at least two years for tax and dispute purposes.