Compare BIGSIM mobile plans (October 2026)
BIGSIM sells 5 mobile plans in Germany, from €6.99/month (BIGSIM Allnet Flat 25 GB).
Operator facts
| Activation fee | eSIM | Network | Contract | EU roaming | Promo code | Source · checked |
|---|---|---|---|---|---|---|
| €0.00 | Yes | 1&1 (national roaming on Vodafone) | 24-month contract | 10.6 GBcomputed | unknown | bigsim.de · |
All plans
- BIGSIM Allnet Flat 25 GB costs €6.99 a month, includes 25 GB data and Unlimited, 24-month contract, EU allowance 10.6 GBcomputed. Order at bigsim.de/handyvertrag Go to BIGSIM. checked
- BIGSIM Allnet Flat 50 + 10 GB costs €12.99 a month, includes 60 GB data and Unlimited, 24-month contract, EU allowance 19.8 GBcomputed. Order at bigsim.de/handyvertrag Go to BIGSIM. checked
- BIGSIM Allnet Flat 50 + 20 GB costs €15.99 a month, includes 70 GB data and Unlimited, 24-month contract, EU allowance 24.4 GBcomputed. Order at bigsim.de/handyvertrag Go to BIGSIM. checked
- BIGSIM Allnet Flat 70 + 20 GB costs €19.99 a month, includes 90 GB data and Unlimited, 24-month contract, EU allowance 30.5 GBcomputed. Order at bigsim.de/handyvertrag Go to BIGSIM. checked
- BIGSIM Unlimited 1 GB on demand 50 GB costs €22.99 a month, includes Unlimited data and Unlimited, 24-month contract, EU allowance 35.2 GBstated. Order at bigsim.de/unbegrenztes-datenvolumen Go to BIGSIM. checked
BIGSIM eSIM
5 of the 5 BIGSIM plans state eSIM. The cheapest with eSIM is BIGSIM Allnet Flat 25 GB, at €6.99 a month.
BIGSIM roaming
Elsewhere in the EU, BIGSIM plans give 10.6 to 35.2 GB; BIGSIM states this for 1 plan, for the other 4 we show the computed legal minimum.
Who it's cheapest for
- For Data only, no calls needed (1 GB+), BIGSIM Allnet Flat 25 GB costs €6.99/month; Lycamobile Global Connect XS is cheaper at €3.50/month, about €41.88/year less over a year (effective cost, fees and extra use included).
- For 5 GB+, BIGSIM Allnet Flat 25 GB costs €6.99/month; Lycamobile Global Connect XS is cheaper at €3.50/month, about €41.88/year less over a year (effective cost, fees and extra use included).
- No. 1 for 20 GB+: BIGSIM Allnet Flat 25 GB, at €6.99/month.
- For 50 GB+, BIGSIM Allnet Flat 50 + 10 GB costs €12.99/month; Happy SIM Allnet Flat 75 GB is cheaper at €9.99/month, about €36.00/year less over a year (effective cost, fees and extra use included).
- For 100 GB+, BIGSIM Unlimited 1 GB on demand 50 GB costs €22.99/month; ALDI TALK Tarif S (Unlimited GB nachbuchen) is cheaper at €11.53/month, about €137.52/year less over a year (effective cost, fees and extra use included).
- For Unlimited data, BIGSIM Unlimited 1 GB on demand 50 GB costs €22.99/month; ALDI TALK Tarif S (Unlimited GB nachbuchen) is cheaper at €11.53/month, about €137.52/year less over a year (effective cost, fees and extra use included).
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