BEST VALUE
60 GB for €9.99/month introductory (first 3 months), then €19.99 ongoing. 1&1 5G network up to 300 Mbit/s.
Why we picked it: Most data per Euro at the €19.99 ongoing tier. 1&1's own network so you're not roaming on a host operator.
BEST FOR LIGHT USE
10 GB for €9.99 (intro), €14.99 ongoing. Smallest 1&1 contract.
Why we picked it: Entry-level 1&1 contract for users who don't need much data. Ongoing €14.99 is competitive with MVNO pricing.
BEST FOR HEAVY USE
120 GB for €9.99 intro, €24.99 ongoing. Maximum mainstream contract size.
Why we picked it: For tethering and heavy streamers. Same 300 Mbit/s 5G as the smaller tiers.
1&1 launched its own 5G network in 2023 as Germany's fourth national infrastructure operator. Coverage built quickly: ~95% nationwide 5G as of early 2026, targeting near-100% by end-2026. Where 1&1's own network doesn't reach, the SIM falls back to Vodafone's network via roaming agreement — so coverage is rarely a deal-breaker.
| Plan | Intro | Ongoing | Data | 5G |
|---|---|---|---|---|
| All-Net-Flat 10 GB | €9.99/mo | €14.99/mo | 10 GB | 300 Mbit/s |
| All-Net-Flat 60 GB | €9.99/mo | €19.99/mo | 60 GB | 300 Mbit/s |
| All-Net-Flat 120 GB | €9.99/mo | €24.99/mo | 120 GB | 300 Mbit/s |
Not quite, but close enough in most cities. 1&1 launched its own infrastructure in 2023 and reached ~95% 5G nationwide coverage by early 2026. connect's 2025 network test placed 1&1 last of the four, but the gap is shrinking. In major cities (Berlin, Hamburg, Munich, Frankfurt), 1&1 performance matches O2. In rural areas, the Vodafone fallback covers most gaps.
No, they're clearly disclosed. The €9.99 first-3-months price applies to all three All-Net-Flat tiers (10/60/120 GB). After 3 months, you pay the ongoing price: €14.99, €19.99, or €24.99 respectively. You can cancel monthly if you don't like the ongoing price.
Yes. EU roaming is included on all 1&1 contracts under standard "Roam Like at Home" rules. Switzerland and the UK are sold as separate add-ons; verify on the tariff page before you travel.
Yes, and it's free. Order online, complete VideoIdent, scan the QR. The same-day activation is one of 1&1's selling points vs. supermarket prepaid that takes longer.