Compare Happy SIM mobile plans (October 2026)
Happy SIM sells 6 mobile plans in Germany, from €6.99/month (Allnet Flat 25 GB).
Operator facts
| Activation fee | eSIM | Network | Contract | EU roaming | Promo code | Source · checked |
|---|---|---|---|---|---|---|
| €9.99 | unknown | Telefónica (O2) | 24-month contract | 25 GBstated | unknown | happy-sim.de · |
All plans
- Allnet Flat 25 GB costs €6.99 a month, includes 25 GB data and Unlimited, 24-month contract, EU allowance 25 GBstated. Order at happy-sim.de Go to Happy SIM. checked
- Allnet Flat 25 GB FLEX costs €7.99 a month, includes 25 GB data and Unlimited, no contract, EU allowance 25 GBstated. Order at happy-sim.de Go to Happy SIM. checked
- Allnet Flat 75 GB costs €9.99 a month, includes 75 GB data and Unlimited, 24-month contract, EU allowance 75 GBstated. Order at happy-sim.de Go to Happy SIM. checked
- Allnet Flat 75 GB FLEX costs €9.99 a month, includes 75 GB data and Unlimited, no contract, EU allowance 75 GBstated. Order at happy-sim.de Go to Happy SIM. checked
- Unlimited Advanced costs €19.99 a month, includes Unlimited data and Unlimited, 24-month contract, EU allowance 30.5 GBcomputed. Order at happy-sim.de Go to Happy SIM. checked
- Unlimited Advanced FLEX costs €20.99 a month, includes Unlimited data and Unlimited, no contract, EU allowance 32 GBcomputed. Order at happy-sim.de Go to Happy SIM. checked
Happy SIM eSIM
For 6 plans Happy SIM does not say whether eSIM is possible.
Happy SIM roaming
Elsewhere in the EU, Happy SIM plans give 25 to 75 GB; Happy SIM states this for 4 plans, for the other 2 we show the computed legal minimum.
Who it's cheapest for
- For Data only, no calls needed (1 GB+), Happy SIM Allnet Flat 25 GB costs €7.41/month; Lycamobile Global Connect XS is cheaper at €3.50/month, about €46.92/year less over a year (effective cost, fees and extra use included).
- For 5 GB+, Happy SIM Allnet Flat 25 GB costs €7.41/month; Lycamobile Global Connect XS is cheaper at €3.50/month, about €46.92/year less over a year (effective cost, fees and extra use included).
- Tied with BIGSIM Allnet Flat 25 GB for 20 GB+: Happy SIM Allnet Flat 25 GB at €7.41/month vs €6.99/month, within €1.
- No. 1 for 50 GB+: Happy SIM Allnet Flat 75 GB, at €9.99/month.
- For 100 GB+, Happy SIM Unlimited Advanced costs €20.41/month; ALDI TALK Tarif S (Unlimited GB nachbuchen) is cheaper at €11.53/month, about €106.56/year less over a year (effective cost, fees and extra use included).
- For Unlimited data, Happy SIM Unlimited Advanced costs €20.41/month; ALDI TALK Tarif S (Unlimited GB nachbuchen) is cheaper at €11.53/month, about €106.56/year less over a year (effective cost, fees and extra use included).
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