Overview

• Blau’s Allnet S Flex offers 15 GB with 5G on the O2 network for €5.99 per month on a one‑month term, capped at 50 Mbit/s with EU roaming included and an extra 20 GB granted in the first month.
• Crash promotes a monthly cancellable Vodafone‑network plan with 20 GB and 5G for €6.99, no activation fee, speeds up to 50/25 Mbit/s and throttling to 64 kbit/s after the cap, rising to €9.99 from month 25.
• Klarmobil’s 20‑year anniversary tariff provides 75 GB with 5G in the Telekom network for €9.99 per month on a 24‑month contract, waives the €19.99 connection fee and limits speeds to 50 Mbit/s with EU roaming included.
• SIMon mobile’s flex plan delivers 150 GB with 5G in the D‑network for €21.99 per month, is cancellable monthly, charges no activation fee and supports eSIM and Wi‑Fi calling with speeds up to 150 Mbit/s.
• Outlets stress these are short‑term promotions that pair large data buckets with speed caps and post‑cap throttling, so buyers should compare network quality, fees and contract commitment before switching.