Mobile phone
You can buy a SIM card for about €6.23, which includes 1 GB of data plan. You can choose from 3 telecoms: Deutsche Telekom, Vodafone or o2.
Mobile phones
Germany uses GSM mobile networks GSM 900 and GSM 1800.
Roaming
If you don't want to buy SIM card in Germany upon arrival, make sure to check the roaming charges with your telecom provider before your departure so there are no surprises when you return home.