Germany-country 10 GB, 30-day dest totals this pass sit at Sim Local $11.75, Ubigi $12.50, Nomad $14, Airalo $16 and Saily $19.99. GigSky's $14.29 10 GB 30-day country row is discarded because dest's cheapest 50 GB country SKU is that provider's 180-day 50 GB at $34.89. None of the five remaining 10 GB totals match, so a named host is not used as a tiebreak this pass.
Opensignal's Germany Mobile Network Experience Report, November 2025 (90 days from 1 July 2025 to 28 September 2025), covers O2, Telekom and Vodafone. Telekom took Best Network, with 11 outright awards plus a joint Video Experience win with O2. Bundesnetzagentur's 15 December 2025 press note (Mobilfunk-Monitoring, data stand October 2025) states about 95 per cent of Germany's land area has 5G and about 98 per cent has mobile broadband (4G or 5G). Those scores describe the national MNOs. They do not name a host for any pick.
Germany is in the EU roam-like-at-home area. Austria, France and the Netherlands are EU members; Switzerland is not. The Commission digital-strategy roaming page states the EU roaming rules do not apply in Switzerland. Adjacent countries stay empty on the Germany-country SKUs unless that shop names a latch; none of the five did this pass.
Island and territory cells stay empty unless that shop or SKU names the place. Do not infer Heligoland, Sylt, Rügen, Usedom, the Bavarian Alps, or an Austria/Switzerland/France latch from O2, Vodafone, Telekom or Eplus.
If the ICE timetable and a Berlin U-Bahn week already sit against a gigabyte figure, skip to the plans (#the-picks). For a split between a Munich beer-hall week and a Rhine-city hop, Plan Match at https://allthingsesim.com/plan-match ranks the live country table from both answers.