Overview
- CHIP’s drive and backpack tests across Berlin, Hamburg, Munich, Stuttgart and Leipzig rate all three networks very high, with final grades typically 1.1 and gaps visible only in the decimals.
- Telekom is the most frequent winner, leading overall in Berlin and Hamburg and topping internet and availability in Munich and Leipzig.
- Vodafone narrowly wins Stuttgart over Telekom thanks to stronger telephony and slightly better availability, while O2 trails there due to weaker high‑speed data in inner‑city checks.
- O2 delivers standout results in Munich with 90.3% availability of fast 5G on band N78 and a win in telephony, yet shows issues in parts of Berlin and Hamburg with higher disturbed WhatsApp‑call rates and some upload shortfalls.
- Leipzig ranks best overall with 100% success for downloads, uploads and WhatsApp calls across all networks in drive tests, and the broader report still identifies ICE train connectivity as the main unresolved weak spot.