All-Network Flat-Rate Tariffs of Network Carriers
Overview of current Tariffs for use via Smartphone
All tariffs offer Telephone and SMS flat rate to all German networks. Few tariffs offer a real Data flat rate.
Prices may vary due to temporary reduction of VAT with different invoicing
Data Volume 6 to 120 GB (SIM-only Tariffs)
No real data flat rate below EUR 50 per month in Germany
Telekom MagentaMobil S
39.95 EUR/month: 6 GB data volume with LTE Max up to 300 MBit/s download, up to 50 MBit/s upload. Afterwards throttling to 64 KBit/s for download, 16 KBit/s for upload. WLAN hotspot flat rate. EU roaming incl. Switzerland. Max. 10 additional SIM cards with same phone number (MultiSIM) for use e.g. in a Tablet Computer – 4.95 EUR/month each. This drives up the costs! In the past, private customers only got 2 MultiSIMs and business customers 5, but it was possible at no extra charge!
Telekom MagentaMobil M
49.95 EUR/month: 12 GB data volume with LTE Max up to 300 MBit/s download, up to 50 MBit/s upload. Afterwards throttling to 64 KBit/s for download, 16 KBit/s for upload. WLAN hotspot flat rate. EU roaming incl. Switzerland. Max. 10 additional SIM cards with the same phone number (MultiSIM) for use e.g. in a Tablet Computer – 4.95 EUR/month each.
Vodafone Red M
49.99 EUR/month: 30 GB data volume with LTE up to 500 MBit/s download, 100 MBit/s upload. After consumption up to three forced activations of 250 MB follow at the insane price of 3.00 EUR each! Afterwards throttling to 32 kbit/s - quasi offline!
In order to refuse the forced activation at the price of horror, the notification SMS must be objected to every month by SMS reply!
Conference calls (= telephone calls with more than two participants at the same time) are not covered by the flat rate!
Telefónica o2 Free L
39.99 EUR/month: 60 GB data volume with LTE Max up to 300 MBit/s download, up to 50 MBit/s upload, then throttling down to 32 KBit/s – quasi offline! Ready for 5G. Internet telephony (VoIP). Landline number included free of charge for nationwide reachability.
Telefónica o2 Free L Boost
44.99 EUR/month: 120 GB data volume with LTE Max up to 300 MBit/s download, up to 50 MBit/s upload, then throttling down to 32 KBit/s – quasi offline! Ready for 5G. Connect option (use data volume on several mobile devices): You get 2 SIM cards (multicards) at no extra cost (for the same telephone number), on request as eSIM for using the telephone and SMS flat rate as well as the Internet. Book up to 8 SIM cards for other mobile devices and manage SIM profiles at any time and free of charge via «My o2» app. All SIM cards may use the data volume included in the tariff. Internet telephony (VoIP). Landline number included free of charge for nationwide availability.
This tariff offers the options o2 my Data unlimited (1 month) and o2 my Data unlimited. For occasional demand, you book the monthly version, which ends automatically after one month. For constant additional demand, the unlimited option is more practical. The latter runs with the billing period of your tariff (pro rata usage is charged if not booked exactly at the beginning of the billing period). Both options cost 39.99 EUR per month.
Real Flat Rate without Device (SIM-only Tariffs)
Unlimited data volume from 50 EUR/month
Telefónica o2 Free Unlimited Max
49.99 EUR/month: unlimited high-speed volume with LTE Max up to 300 MBit/s download, up to 50 MBit/s upload. Ready for 5G. Internet telephony (VoIP). Landline number included free of charge for nationwide reachability. Attention: the Connect option is not available for this tariff! Read my tip above.
Telekom MagentaMobil XL
84,95 EUR/month: unlimited high-speed volume with LTE Max up to 300 MBit/s download, up to 50 MBit/s upload. Tariff enables 5G use, if already receivable on site. Max. 2 additional SIM cards with same phone number (MultiSIM) e.g. for a Tablet Computer per MultiSIM a whopping 29.95 EUR/month!
Real Flat Rate with Device (Mobile Phone Deals)
Unlimited data volume from about 90 EUR/month
Telekom MagentaMobil XL
94,95 EUR/month: unlimited high-speed volume with LTE Max up to 300 MBit/s download, up to 50 MBit/s upload. Tariff enables 5G use, if already receivable on site. Max. 2 additional SIM cards with same phone number (MultiSIM) e.g. for a Tablet Computer per MultiSIM a whopping 29.95 EUR/month!
Telekom MagentaMobil XL Premium
(read my German-language test review)
199,95 EUR/month: unlimited high-speed volume with LTE Max up to 300 MBit/s download, up to 50 MBit/s upload. Annually strongly discounted top smartphone with contract extension for another 24 months. Phone and SMS flat rate to all German networks. EU-Flat Plus (EU, Turkey, USA and Canada). EU roaming incl. CH and UK. Landline number (incl.) must be requested by phone from customer service if required! Max. 2 additional SIM cards with same number (MultiSIM) e.g. for a Tablet Computer free of charge. Additional MultiSIMs per piece a whopping 29.95 EUR/month!
Vodafone Red XL Unlimited
79.99 EUR/month: unlimited high-speed volume with LTE up to 500 MBit/s download, 50 MBit/s upload for the main SIM card only! Telephone, SMS and MMS flat rate to all German networks. With annual contract extension for a further 24 months, strongly discounted top smartphone. Max. 2 additional SIM cards with same phone number (MultiSIM) for use e.g. in a Tablet Computer, for each 10.00 EUR/month! Per MultiSIM only 10 GB volume/month – no real flat rate!
Data Volume needed only stationary or on a Tablet Computer?
Then take a look at these data tariffs …

Recommended distribution channel: retail shop. There can be very attractive promotions online for a limited time. Unattainable for working people if SIM cards are only handed over personally for security reasons (Telekom, maybe also Vodafone). You will not be met by the delivery person or "he doesn't like to deliver".
Online offers can usually also be used as an "offline regular customer" and you can book yourself in the customer centre of the network operator. It is often better to first contact the mobile phone retailer of your choice locally/via the Internet. They may be able to make you a better offer!
It doesn't cost anything to ask, but it can be worth it!
If you do not trust your local dealer, you should buy online and get further opinions first. Some online forums are very suitable for this!