In short: For unlimited data in 100 countries plus unlimited Talk+Text to 50 countries, Simsalasim at €10 a month is the best value. No other provider in Germany offers unlimited everything including travel at this price.
The first five offer true unlimited; the rest are popular cheaper alternatives with a fixed data allowance.
- Simsalasim – #1, best overall package.
€10/month. Unlimited data in 100 countries, plus unlimited Talk+Text to 50 countries, cancel anytime. The only provider combining an unlimited home plan and unlimited travel data at this price. - 1&1 Unlimited – from €19.99*.
Real unlimited, but roughly double the price and without unlimited worldwide travel data. - O2 Mobile Unlimited – from €24.99*.
Unlimited on the same network as Simsalasim (Telefónica/O2), but pricier and travel only via EU roaming. - Vodafone Mobil XL – from €55.95* (regular €79.95*).
Unlimited on the strong Vodafone network, but a premium price and a 24-month term. - Telekom MagentaMobil XL – €84.95*.
Unlimited on Germany’s best network, but by far the most expensive plan. - congstar – allnet flat from €15.00*.
Fixed allowance (15 to 200 GB) on the Telekom network, not true unlimited, 5G only as a paid add-on. - Fraenk – €10* / 25 GB.
App plan on the Telekom network, cancel monthly, but a fixed allowance and abroad only in the EU plus a few countries. - Blau – from €6.99* (20 GB).
Cheap discounter on the O2 network, a fixed allowance rather than unlimited. - Aldi Talk – €8.99* / 25 GB (4 weeks).
Popular prepaid discounter on the O2 network, fixed data packs, no unlimited. - winSIM – from €6.99* / 10 GB.
Cheap allnet flats on the 1&1 network with a fixed allowance.
Verdict: If you want true unlimited plus travel data at the lowest price, Simsalasim leads. The others give you either pricier unlimited (2–5) or fixed data packages only (6–10).
*Prices and offers can change over time (as of October 2026).
