Compare O2 mobile plans (October 2026)
O2 sells 23 mobile plans in Germany, from €7.40/month (O2 Prepaid Jahrespaket).
Operator facts
| Activation fee | eSIM | Network | Contract | EU roaming | Promo code | Source · checked |
|---|---|---|---|---|---|---|
| €0.00 | Yes | Telefónica (O2) | 12 months paid up front (prepaid) | 11.3 GBcomputed | unknown | o2online.de · |
All plans
- O2 Prepaid Jahrespaket costs €7.40 a month, includes 12.33 GB data and Unlimited, 12 months paid up front (prepaid), EU allowance 11.3 GBcomputed. Order at o2online.de/mobilfunk/prepaid/jahrespaket Go to O2. checked
- O2 Prepaid S costs €10.70 a month, includes 20 GB data and Unlimited, prepaid, no subscription, EU allowance 16.3 GBcomputed. Order at o2online.de/mobilfunk/prepaid/prepaid-s Go to O2. checked
- O2 Mobile S (Junge Leute) costs €14.99 a month, includes 30 GB data and Unlimited, 24-month contract, EU allowance 22.9 GBcomputed. Order at o2online.de/tarife/junge-leute Go to O2. checked
- O2 Prepaid M costs €16.06 a month, includes 40 GB data and Unlimited, prepaid, no subscription, EU allowance 22.91 GBstated. Order at o2online.de/mobilfunk/prepaid/prepaid-m Go to O2. checked
- O2 Mobile M (Junge Leute) costs €19.99 a month, includes 100 GB data and Unlimited, 24-month contract, EU allowance 30.5 GBcomputed. Order at o2online.de/tarife/junge-leute Go to O2. checked
- O2 Mobile on Demand M costs €19.99 a month, includes Unlimited data and Unlimited, 24-month contract, EU allowance 30.5 GBcomputed. Order at o2online.de/tarife Go to O2. checked
- O2 Mobile S costs €19.99 a month, includes 15 GB data and Unlimited, 24-month contract, EU allowance 15 GBcomputed. Order at o2online.de/tarife Go to O2. checked
- O2 Mobile S Flex costs €19.99 a month, includes 15 GB data and Unlimited, no contract, EU allowance 15 GBcomputed. Order at o2online.de/tarife Go to O2. checked
- O2 Prepaid L costs €21.42 a month, includes 80 GB data and Unlimited, prepaid, no subscription, EU allowance 32.7 GBcomputed. Order at o2online.de/mobilfunk/prepaid/prepaid-l Go to O2. checked
- O2 Mobile L costs €24.99 a month, includes 150 GB data and Unlimited, 24-month contract, EU allowance 38.1 GBcomputed. Order at o2online.de/tarife Go to O2. checked
- O2 Mobile L (Junge Leute) costs €24.99 a month, includes 300 GB data and Unlimited, 24-month contract, EU allowance 38.1 GBcomputed. Order at o2online.de/tarife/junge-leute Go to O2. checked
- O2 Mobile Unlimited S Special costs €24.99 a month, includes Unlimited data and Unlimited, 24-month contract, EU allowance 38.1 GBcomputed. Order at o2online.de/tarife Go to O2. checked
- O2 Mobile Unlimited S Special (Junge Leute) costs €24.99 a month, includes Unlimited data and Unlimited, 24-month contract, EU allowance 38.1 GBcomputed. Order at o2online.de/tarife/junge-leute Go to O2. checked
- O2 Mobile on Demand M Flex costs €29.99 a month, includes Unlimited data and Unlimited, no contract, EU allowance 45.8 GBcomputed. Order at o2online.de/tarife Go to O2. checked
- O2 Mobile Unlimited M costs €29.99 a month, includes Unlimited data and Unlimited, 24-month contract, EU allowance 45.8 GBcomputed. Order at o2online.de/tarife Go to O2. checked
- O2 Mobile Unlimited M (Junge Leute) costs €29.99 a month, includes Unlimited data and Unlimited, no contract, EU allowance 45.8 GBcomputed. Order at o2online.de/tarife/junge-leute Go to O2. checked
- O2 Mobile L Flex costs €34.99 a month, includes 150 GB data and Unlimited, no contract, EU allowance 53.4 GBcomputed. Order at o2online.de/tarife Go to O2. checked
- O2 Mobile Unlimited S Special Flex costs €34.99 a month, includes Unlimited data and Unlimited, no contract, EU allowance 53.4 GBcomputed. Order at o2online.de/tarife Go to O2. checked
- O2 Mobile Unlimited L costs €39.99 a month, includes Unlimited data and Unlimited, 24-month contract, EU allowance 61.1 GBcomputed. Order at o2online.de/tarife Go to O2. checked
- O2 Mobile Unlimited L (Junge Leute) costs €39.99 a month, includes Unlimited data and Unlimited, 24-month contract, EU allowance 61.1 GBcomputed. Order at o2online.de/tarife/junge-leute Go to O2. checked
- O2 Mobile Unlimited M Flex costs €39.99 a month, includes Unlimited data and Unlimited, no contract, EU allowance 61.1 GBcomputed. Order at o2online.de/tarife Go to O2. checked
- O2 Mobile Unlimited L Flex costs €59.99 a month, includes Unlimited data and Unlimited, no contract, EU allowance 91.6 GBcomputed. Order at o2online.de/tarife Go to O2. checked
- O2 Prepaid Max costs €80.35 a month, includes 999 GB data and Unlimited, prepaid, no subscription, EU allowance 114.58 GBstated. Order at o2online.de/mobilfunk/prepaid/prepaid-max Go to O2. checked
O2 eSIM
23 of the 23 O2 plans state eSIM. The cheapest with eSIM is O2 Prepaid Jahrespaket, at €7.40 a month.
O2 roaming
Elsewhere in the EU, O2 plans give 11.3 to 114.58 GB; O2 states this for 2 plans, for the other 21 we show the computed legal minimum.
Who it's cheapest for
Not the cheapest for any of the 6 standard situations we compare.
- For Data only, no calls needed (1 GB+), O2 Prepaid Jahrespaket costs €7.40/month; Lycamobile Global Connect XS is cheaper at €3.50/month, about €46.80/year less over a year (effective cost, fees and extra use included).
- For 5 GB+, O2 Prepaid Jahrespaket costs €7.40/month; Lycamobile Global Connect XS is cheaper at €3.50/month, about €46.80/year less over a year (effective cost, fees and extra use included).
- For 20 GB+, O2 Prepaid S costs €10.70/month; BIGSIM Allnet Flat 25 GB is cheaper at €6.99/month, about €44.52/year less over a year (effective cost, fees and extra use included).
- For 50 GB+, O2 Prepaid L costs €21.42/month; Happy SIM Allnet Flat 75 GB is cheaper at €9.99/month, about €137.16/year less over a year (effective cost, fees and extra use included).
- For 100 GB+, O2 Mobile on Demand M costs €21.66/month; ALDI TALK Tarif S (Unlimited GB nachbuchen) is cheaper at €11.53/month, about €121.56/year less over a year (effective cost, fees and extra use included).
- For Unlimited data, O2 Mobile on Demand M costs €21.66/month; ALDI TALK Tarif S (Unlimited GB nachbuchen) is cheaper at €11.53/month, about €121.56/year less over a year (effective cost, fees and extra use included).
Price changes
- O2 Prepaid Jahrespaket: data changed ()
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