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The three major network operators are Telekom, Vodafone, and O2. There are also cheaper providers (MVNOs) that run on these networks — including 1&1, Aldi Talk, Blau, and others. They often offer the same network quality at a fraction of the price. Anyone looking for particularly good value for money will often come across Congstar as a strong option when comparing.

All three German network operators — Telekom, Vodafone, and O2 — cover between 95 and 99% of the country. The differences in everyday use are so marginal that they're practically only noticeable in remote mountain regions. Network choice is therefore not a decisive factor for most people — price, flexibility, and terms matter more.

No. Plans with no minimum term give you full flexibility — no risk, no commitment. They often include 5G as well as enough data allowance for everyday use. Watch out for the fine print: some low prices only apply with a 24-month term.

There are very good offers on the German market for a plan with 5G, at least 15 GB of data and no minimum term. Plans from large network operators often include extras that many people don't need. Paying more often just buys you the brand name — not better network quality.

With a no-minimum-term plan, you can switch at any time: sign up with the new provider, request number porting — the rest happens automatically. The switch takes 1–2 business days. With a fixed-term contract, it's best to switch only after the term ends, to avoid double costs from two active contracts.

Yes, as long as your device is unlocked. Most modern smartphones from Europe, the US or Asia are compatible with the German 4G/5G network. Check the band compatibility in your device's manual — Vodafone uses common international 5G bands supported by most current models.

Important to know: German mobile plans don't automatically include EU roaming — this differs from other EU countries. If you travel abroad 2–3 times a year, a plan with included EU roaming is clearly cheaper than individual bookings. Congstar offers plans with EU roaming at fair conditions — always check when signing up whether roaming is included in the price or needs to be added separately.

We show you the best offers on the market — clearly laid out and filterable by data allowance, price, term and roaming. This way you'll find exactly what suits your situation within minutes, and you can sign up for your new plan directly online or request a personal offer.

The service is, of course, completely free for you.

Yes. eSIM is standard with modern providers — and it makes life much more convenient. Whether you want to quickly activate a plan with roaming before a holiday or can't wait for a physical SIM in a busy day-to-day life: with eSIM you're ready to go instantly. Check in advance whether your device supports eSIM — most current smartphones do, but you should confirm compatibility yourself with the manufacturer or in your device settings.

A good offer combines four things: a strong network, a fair amount of data, no minimum term and transparent prices without hidden surcharges. Congstar is a good example of this — strong Vodafone network, clear pricing structure, no commitment. Stay away from bait offers with low introductory prices that automatically increase after 6 months.

4G is completely sufficient for everyday browsing, streaming and social media. 5G brings significantly higher speeds (up to 10 Gbit/s vs. 150 Mbit/s with 4G), faster response times and more stable connections in busy places like train stations or stadiums.

In Germany, 5G already covers over 90% of the population — if you live in a city, you're already benefiting from it. Many affordable plans already include 5G.