Germany runs the strictest prepaid SIM regime in Western Europe. Since July 2017, German law requires every SIM — including a €9 supermarket prepaid — to be registered to a verified identity. No exceptions for tourists. You'll show a passport in a carrier store, do a live VideoIdent call, or queue at a Deutsche Post branch for PostIdent. Some online verification systems can reject non-EU passports outright, which is exactly the failure mode you don't want to discover at 9 pm in a hotel near Frankfurt Messe.
An eSIM issued outside Germany is legal to use and skips all of it. Roamzy's rate for Germany is $0.0014/MB (~$1.43/GB) — per-MB metered, no package to size, no expiry, no account or KYC, paid in USDT or USDC with an instant QR. Below is the honest comparison with everything else you could do on arrival.
Your options on arrival in Germany
- EU roaming on your home plan — free if you're an EU resident and your contract honors roam-like-at-home. If that's you, stop reading and use your home plan.
- German prepaid from the big carriers — Vodafone CallYa advertised at €9.99 for ~25 GB / 4 weeks; O2 advertised at €9.99 for ~20 GB (both as of mid-2026). Excellent per-GB value — after you clear identity verification.
- Discounter prepaid (Aldi Talk, Lidl Connect) — Aldi Talk's Kombi-Paket S is advertised at €8.99 for 25 GB as of mid-2026, plus a €9.99 starter kit. Among the cheapest per GB in the country; the same registration law applies, and non-EU passports often get bounced to PostIdent.
- Tourist package eSIM — Airalo's Germany plans are advertised from about $4.50 for 1 GB / 7 days up to ~$18.50 for 10 GB / 30 days (as of mid-2026). No German KYC, but fixed packages with expiry dates.
- Per-MB global eSIM — Roamzy at $0.0014/MB. You pay for exactly the megabytes you use, and the balance carries over to your next trip anywhere among 193 countries.
10 days in Germany — what it actually costs
Profile: 10 days across Berlin, Munich and a couple of Christmas markets or a trade fair, ~120 MB/day of cellular use (Maps, DB Navigator, translate, messaging, transit tickets, hotel WiFi at night). Total ~1.2 GB. Not sure that's your profile? Check our data-usage estimator.
| Option | Total (10 days, 1.2 GB) | Friction |
|---|---|---|
| EU roaming (home plan) | €0 | None — EU residents with RLAH only |
| Vodafone CallYa prepaid | €9.99 + SIM kit (advertised) | Store visit or VideoIdent, passport, German address usually requested |
| Aldi Talk prepaid | €8.99 + €9.99 starter kit (advertised) | Supermarket purchase, then PostIdent/online verification before it activates |
| Airalo Germany 3 GB / 30 days | ~$8 advertised | Low; unused data expires with the pack |
| Roamzy per-MB | 1.2 GB × $1.43/GB ≈ $1.72 | Scan QR, connect; leftover balance never expires |
When per-MB stops winning
Honest math, because the break-even is real:
- Heavy streamers and hotspot workers. At $1.43/GB, using 7-8 GB in a month costs about what CallYa's advertised €9.99/25 GB pack does. Above that, local prepaid wins on price — if you're willing to do the registration.
- Long stays. Moving to Berlin for three months? Do the PostIdent once and get a German prepaid or contract. The verification friction amortizes; per-MB doesn't.
- EU residents with RLAH. Your home plan roams free in Germany. Per-MB only helps if your home operator caps or surcharges EU roaming data — common on budget MVNOs, and a familiar trap for UK travelers whose operators reinstated roaming charges after Brexit.
Networks and 5G in Germany
Germany has four physical networks: Deutsche Telekom, Vodafone, O2 (Telefónica) and newcomer 1&1.
- Deutsche Telekom — the overall winner in recent independent network reports (Opensignal and others, as of mid-2026), with the fastest 5G downloads and the strongest rural footprint. If your itinerary includes small towns or the Alps, this is the network you want under you.
- Vodafone — strong in cities, improving 5G, generally a clear second in independent tests.
- O2 Telefónica — reports around 99% population coverage and very high 5G availability in urban areas; historically weaker on rural Autobahn and rail corridors.
- 1&1 — building out its own 5G network; outside its own footprint, much of its coverage still comes via national roaming on a partner network.
Roamzy's eSIM connects to a local partner network automatically, so in Berlin, Munich, Hamburg, Cologne or Frankfurt the underlying carrier is functionally invisible. One caveat that applies to every provider: German rail is notorious for Funklöcher — dead zones on ICE routes through rural stretches. Download offline maps and your DB tickets before boarding; the onboard WiFi is a lottery.
Germany-specific practicalities
- Christmas markets (late November – December 23). Nuremberg, Dresden and Cologne pull enormous crowds, and market-square cells get congested at peak evening hours. A metered eSIM sips data fine for payment apps and meet-up messaging; just don't plan on uploading 4K Glühwein videos from the middle of the crowd — on any network.
- Cash culture. Germany is still surprisingly cash-first; many Christmas-market stalls and small Kneipen take no cards. You'll lean on Maps to find ATMs — a classic low-megabyte, high-value data use.
- Business travel. Trade-fair cities (Frankfurt, Munich, Hannover) book out fast and fair WiFi is overloaded by 10 am. A per-MB eSIM as a tethering backup costs cents on days you don't need it — unlike a package that expires whether used or not.
- Cross-border trips. Day trips to Strasbourg, Amsterdam or Salzburg are standard Germany-itinerary add-ons. The same Roamzy eSIM keeps working across the border at each country's own per-MB rate — see the France and Netherlands country pages for their live rates and notes.
The no-KYC and crypto angle
Germany's registration law is precisely the case no-KYC eSIMs were built for. Roamzy issues the eSIM with no account, no passport upload and no name — you pay in USDT or USDC and get a QR code. That also sidesteps the second-order problem travelers report with German carriers: foreign cards being declined at checkout or top-up. If your bank has ever blocked a foreign telecom charge, the stablecoin top-up guide covers the workflow in five minutes.
To be clear about the trade-off: Roamzy is data-only. No German phone number, no SMS, no calls — WhatsApp, Signal and FaceTime all work over data, but if you need a local number for a German service, only a registered local SIM provides that.
Bottom line for Germany
For a 1-3 week trip by a non-EU visitor: per-MB at $0.0014/MB is the cheapest realistic option for typical usage and the only one that skips Germany's mandatory ID verification entirely. Local prepaid (CallYa, O2, Aldi Talk) wins on price only above roughly 7-8 GB/month, and only after you clear the registration. EU residents with functioning RLAH should simply use their home plan.
Live Germany rate, coverage notes and cross-border details: Germany country page. All 193 countries on one price list: live per-MB prices.
FAQ
Do I really need a passport to buy a prepaid SIM in Germany?
Yes. Since July 2017, German law mandates identity verification for every SIM activation — in-store, via VideoIdent, or via PostIdent at a Deutsche Post branch. There is no tourist exemption. A foreign-issued eSIM like Roamzy is legal to use in Germany and requires none of it.
Which German network will my Roamzy eSIM use?
The eSIM connects to one of Germany's major networks automatically. In cities and along main corridors coverage is excellent on all of them; Deutsche Telekom has the strongest rural footprint if your route goes deep into the countryside. Setup takes about two minutes — see the iOS guide if it's your first eSIM install.
What happens to my balance after the trip?
Nothing — it never expires. The same balance and the same eSIM work in 192 other countries at each country's live per-MB rate, so whatever's left simply waits for your next trip.
Can I receive German SMS codes on Roamzy?
No. Roamzy is data-only — no number, SMS or calls. Messaging apps work normally over data. For one-time codes from your home bank, keep your home SIM active alongside the eSIM — most modern phones run a physical SIM and an eSIM at the same time.