Everything you need to know about Mobile plans & Internet in Germany

internet-deals.de is an independent German comparison portal for mobile and internet plans. With just a few filters – data allowance, term, network – you can see in seconds which plan suits you. The offers are updated continuously, including promotions and daily deals. You can sign up directly online, without detours.

We compare all relevant German mobile and internet providers. Every week we analyse the market and recommend the best plans online, which you can compare here on internet-deals.de and in some cases sign up for directly through us.

Yes, completely free and independent. The platform is funded through commissions from partner providers upon successful sign-up – you incur no costs, and the price is identical to buying directly from the provider.

Congstar is a German mobile provider that uses the Vodafone network. This means: extensive network coverage throughout Germany, 5G in cities, solid 4G coverage in rural areas. Congstar is aimed at users looking for good value for money without unnecessary extras. The plans are simply structured – from cheap to unlimited.

O2 operates its own mobile network in Germany and is therefore independent of Vodafone or Telekom. The network offers nationwide 4G and 5G expansion in larger cities. O2 is especially interesting for users who make a lot of calls or travel abroad – roaming packages and unlimited plans are a clear strength.

This depends on your daily needs:

• Congstar is suitable for price-conscious users looking for a flexible plan on one of the best German networks
• O2 is strong in roaming, its own network, and complete packages with internet and TV
• For a side-by-side comparison, simply use our filter on internet-deals.de – you'll immediately see which offer is the better fit today

Congstar uses the Vodafone network – one of the three major German mobile networks with 4G coverage of over 99% of the population. 5G is available in cities. Anyone living in mountainous regions or traveling frequently should check the Vodafone coverage map.

O2 operates its own network and is one of the three licensed German mobile network operators. 4G coverage is nationwide, while 5G expansion is concentrated in urban areas. O2 is often the better alternative in regions where Vodafone is weaker.

Yes. Both Congstar and O2 offer plans with and without a minimum term. Options with no minimum term are available – the filter on internet-deals.de shows you directly which plans are available without a term commitment.

For anyone who travels regularly in Europe, EU roaming is a decisive criterion. Both Congstar and O2 offer plans with included EU roaming. The current comparison on internet-deals.de shows which offer is currently better.

Yes. On internet-deals.de you can also compare internet and TV packages. Bundled offers from O2 or other providers are often cheaper than individual products – especially if you need both services anyway.

You can take your phone number to any new provider in Germany (number porting). To do this, you need your current SIM card number (ICCID) and your preferred switch date. internet-deals.de explains the switching process step by step in the sign-up flow.