As of July 2, 2026, 1&1 has revised several mobile plans and is lowering the monthly price by 5 euros for the medium and large tiers. Whether this is a good deal for you depends on your plan: The All-Net-Flat L costs less but still offers more data, while the All-Net-Flat M is cheaper but loses 10 GB. The small S plans remain completely unchanged.
The most important information at a glance
- All-Net-Flat M: €14.99 instead of €19.99 per month, with 50 GB instead of 60 GB
- All-Net-Flat L: €19.99 instead of €24.99, with 150 GB instead of 120 GB
- Unlimited on demand M & L: €5 cheaper each; base data allowance adjusted to match the All-Net-Flat plans
- S plans (10 GB) and pure Unlimited plans: remain unchanged
- The new M and L terms apply starting with the first SIM card, no longer limited to the Family Advantage plan
What’s changing with the All-Net-Flat plans
1&1 is making two main adjustments to its plans: price and data allowance. For the All-Net-Flat M, the price drops from 19.99 to 14.99 euros. At the same time, the monthly high-speed data allowance is decreasing from 60 to 50 GB. So you’ll pay less, but you’ll also be able to browse less.
The All-Net-Flat L is the clear winner. It will now cost 19.99 instead of 24.99 euros, and the data allowance is increasing from 120 to 150 GB. It’s rare to find a plan that offers less money and more data.
| Plan | Previous Price | New price | Previous Data Allowance | New data allowance |
|---|---|---|---|---|
| All-Net-Flat S | €14.99 | €14.99 | 10 GB | 10 GB |
| All-Net-Flat M | 19.99 € | €14.99 | 60 GB | 50 GB |
| All-Net-Flat L | €24.99 | 19.99 € | 120 GB | 150 GB |
Unlimited on demand: same pattern, 5 euros cheaper
The Unlimited on Demand plans work almost identically. The M plan drops from 24.99 to 19.99 euros, and the base data allowance decreases from 60+ GB to 50+ GB. The L plan now costs just 24.99 instead of 29.99 euros and will start with 150+ instead of 120+ GB. The “Plus” in the name remains key: Once your monthly allowance is used up, you can activate additional data volume for free.
| Plan | Previous Price | New price | Previous Base Data Allowance | New base data allowance |
|---|---|---|---|---|
| Unlimited on demand S | €14.99 | €14.99 | 10+ GB | 10+ GB |
| Unlimited on demand M | 24.99 € | 19.99 € | 60+ GB | 50+ GB |
| Unlimited on demand L | €29.99 | €24.99 | 120+ GB | 150+ GB |
Is it worth it? A look at the price per gigabyte
When it comes to the word “cheaper,” it’s worth doing the math. The All-Net-Flat M used to cost around 0.33 euros per GB (60 GB for €19.99); now it’s about 0.30 euros per GB (50 GB for €14.99). So, per gigabyte, the plan is slightly cheaper, but overall, you simply get less data for less money. If you actually needed the 60 GB, you’re not saving money here—you’re getting less.
The L plan is a completely different story: it’s gone from 0.21 euros per GB (120 GB for 24.99 euros) to 0.13 euros per GB (150 GB for 19.99 euros). That’s a real price drop and the reason why switching to the larger plan is now more worthwhile for heavy users than it was before.
What’s Staying the Same
Not everything has changed. The two S plans (All-Net-Flat S and Unlimited on demand S) remain at 10 GB for 14.99 euros per month, or 9.99 euros for the first three months. The pure unlimited plans without the on-demand provision also remain unchanged. For plans that include a smartphone, the monthly price tiers also stay the same; in those cases, 1&1 is only adjusting the data allowances.
One new detail, however, is easy to overlook: The revised M and L terms now apply to the first SIM card and are no longer tied to the previous “Family Advantage” program. So anyone who needs just one card benefits directly from the new price. For some context on the provider behind these plans, it’s worth taking a look at 1&1’s own 5G mobile network.
Does this also apply to existing customers?
The changes apply to new customers. Anyone who already has an active 1&1 contract will retain the agreed-upon terms; there is no automatic switch to the new plans. So, anyone who wants to take advantage of the new prices must actively sign up for a suitable new plan or renew their existing one.
FAQ
How much does the 1&1 All-Net-Flat M cost now?
Starting July 2, 2026, the All-Net-Flat M costs 14.99 euros per month and includes 50 GB. Previously, it cost 19.99 euros for 60 GB.
Do I get more data with the All-Net-Flat L?
Yes. The All-Net-Flat L now offers 150 GB instead of the previous 120 GB and costs only 19.99 euros instead of 24.99 euros.
Are the smaller S plans changing?
No. The All-Net-Flat S and Unlimited on demand S plans remain at 10 GB for 14.99 euros per month, or 9.99 euros for the first three months.
Do the new prices also apply to existing customers?
No. Current contracts remain unchanged. The new terms apply to new contracts.
When do the new 1&1 plans take effect?
The new prices and data allowances have been in effect since July 2, 2026.
Conclusion
The change to 1&1’s plans isn’t a blanket giveaway, but rather a reshuffle with winners and losers. The All-Net-Flat L and its Unlimited counterpart have clearly improved: more data, lower costs. I’d take a closer look at the M tier, though, because those who needed the full 60 GB will get less data for the savings. The bottom line is that the portfolio is becoming more transparent, and price pressure on Telekom, Vodafone, and O2 continues to rise. For new customers with high data usage, now is actually a pretty good time to switch.
Sources: 1&1,
