Germany eSIM for US Travelers (2026): The SIM ID Check, the 2G Deadline and the Swiss Border

Conclusion: For most US visitors, the simplest setup in Germany is a data-only travel eSIM installed at home, with your US line kept on for calls and texts. A German prepaid SIM is cheap on its larger plans and comes with a German number, but German law (§ 172 TKG) requires the provider to verify your identity from a passport or ID before the line is activated, online or in a shop. On the listed prices compared below, eSIM4Travel is the cheapest from 1 GB to 20 GB and Nomad is the cheapest at 50 GB. Two more checks before you fly: that your phone supports VoLTE (Germany switched 3G off in 2021 and plans to switch 2G off in 2028), and, if a Swiss side trip is on the route, that your plan covers Switzerland, which is outside EU roaming.

What you’ll learn on this page:

• Why a German prepaid SIM is not a buy-and-go product, and how that differs from a travel eSIM you buy before you leave.
• What the 3G shutdown and the 2028 2G switch-off mean for an older iPhone or Android phone.
• How good German coverage really is, and why the networks your eSIM uses matter outside the cities.
• The Swiss border trap: why a phone near Lake Constance or Basel can land on a network outside EU roaming.
• Side-by-side prices for eSIM4Travel, Saily and Nomad, with the source and date of every number.
• Entry rules on a US passport (EES, ETIAS, land-border checks) and the everyday reasons you want data: cash, the Deutschland-Ticket and phone alerts.

Germany has a reputation for patchy mobile coverage, cash-only cafés and complicated SIM cards. The data paints a more mixed picture. The federal network regulator, the Bundesnetzagentur, reports in its December 2025 monitoring update that about 98% of the country is covered by 4G or 5G, and the Bundesbank found in its 2025 payments study that people in Germany paid cashless for a majority of purchases for the first time. The SIM card, though, is a regulated identity product here, and that shapes the choice more than price does. This guide is built from German law, the regulator, the European Commission, the operators’ own pages and the providers’ price lists, and each number shows where it comes from.

Why a German prepaid SIM is not a buy-and-go product

Disclosure: This page contains affiliate links from which Cairnroam may earn a commission at no extra cost to you. Rules checked on 13 October 2026. Nomad’s prices were read on its own page that day; Saily’s and eSIM4Travel’s are eSIMDB listings updated 4 October and 23 September 2026, as the table caption shows. Sources: German federal law, the Bundesnetzagentur, the European Commission, the German operators’ own pages, the providers’ product pages and eSIMDB. — Mara Whitlock

In some countries I cover, you can pick up a SIM at the airport and be online before the baggage carousel starts. Germany is not one of them, and the reason is written into law. Section 172 of the German Telecommunications Act (TKG) requires providers that assign phone numbers to collect the customer’s name, address and date of birth before the line is switched on. For prepaid mobile services it goes further: the provider must verify those details before activation, using an ID card, a passport, another official photo ID or a residence permit, or another procedure the regulator has approved.

That does not mean a tourist cannot get a German SIM. A foreign passport is one of the documents the law accepts. It means the line only works after an ID check. The Bundesnetzagentur’s page on identification procedures for prepaid mobile services explains how the alternatives to showing your document in person, such as video identification, are approved. The operators describe what that looks like in practice. Telekom says its prepaid card is activated by Online-Ident (an online ID check) or in a Telekom Shop, with your card number and a valid ID document at hand. Vodafone’s CallYa prepaid page lists the steps as entering your details, identifying yourself online or at a post office, then receiving the eSIM by email or the SIM by mail, and it adds that a CallYa card bought at a supermarket, gas station or kiosk has to be registered before use.

A travel eSIM works differently. You buy it from a provider outside Germany before you fly, and once you land it roams on German networks. Germany’s ID check is an obligation on the provider of a German prepaid line, carried out before activation, so the shop or video-ident step is not part of buying a travel eSIM. What you give up is a German phone number. For a short trip that is usually fine; for a long stay, the local SIM section below is worth a look.

Your US plan gets no Roam Like At Home in Germany

Germany is in the EU, so it is easy to assume roaming is cheap. Roam Like At Home is real, but it protects customers of EU operators. The European Commission’s roaming page describes it as automatic whenever you use your phone in any of the 27 EU countries plus Iceland, Liechtenstein, Norway, Ukraine and Moldova, and its roaming Q&A says the rules have been prolonged until 2032. A Verizon, AT&T, T-Mobile or Google Fi line is not an EU SIM, so none of that applies to you: in Germany you are on whatever international terms your US carrier sets.

I am not printing US day-pass prices, because they vary by plan and change often; look up your own before you go. My setup in any case: keep the US line switched on for calls and SMS codes, turn its data roaming off, and let a travel eSIM carry the data. On iPhone and Pixel you can run both lines at once, as Apple’s Dual SIM guide (iPhone) and Google’s Pixel help page (Pixel 3a or later) explain, and Apple’s travel eSIM page notes that FaceTime and iMessage keep working on your home line.

The hardware clock: no 3G, and 2G is due to go in 2028

This is the part of a Germany trip that matters most if you travel with an older phone. According to the Bundesnetzagentur’s page on the 2G switch-off, the German operators switched their 3G networks off back in 2021. Telekom, Vodafone and Telefónica have announced that they expect to switch off 2G in 2028: Telekom around 30 June 2028, Vodafone by the end of September 2028 (with exceptions for critical IoT uses until the end of 2030), and Telefónica by the end of 2028.

Why should a visitor care? The regulator explains that some 4G and 5G phones cannot make voice calls over 4G, a feature called Voice over LTE (VoLTE). Those phones fall back to 2G for calls, and once 2G is gone, voice calls and emergency calls on them will stop working. It is 2026, so 2G is still on and those phones can still call today. But Germany has no 3G left to fall back on, and older 4G handsets are the ones most affected. If your backup phone is several years old, check that it supports VoLTE, and, as the regulator advises, 4G on all the frequency ranges used in Germany. Germany’s 4G and 5G networks use, among others, 800 MHz, 1.8 GHz and 2.6 GHz, whose rights the Bundesnetzagentur extended in March 2025, and 2 GHz and 3.6 GHz, listed on its mobile networks page. A spec sheet shows them as bands, for example Band 20 for 800 MHz and Band 3 for 1.8 GHz.

For a travel eSIM this is mostly reassuring. The plans below are data-only, so your calls go over WhatsApp, FaceTime or similar apps, not the German voice network. I could not verify whether any of the three providers supports VoLTE while roaming in Germany, and it does not matter much for a data plan. What matters is your US line: keep it on so it can receive texts and reach 112.

German coverage is better than its reputation, but the network matters

Germany has four network operators: Telekom, Vodafone, Telefónica (sold as O2) and 1&1, which the Bundesnetzagentur called the fourth network operator when it extended mobile frequency rights in March 2025. In its December 2025 update, the regulator put 5G at around 95% of Germany’s area as of October 2025, counting any operator, and 4G or 5G at about 98%. Per operator the gap is real: Telekom reaches about 87% of the area with 5G, while Telefónica and Vodafone reach about 76% and 75%.

That gap is a concrete reason to read the network list before you buy. Nomad’s Germany plans connect to O2 and Vodafone, not Telekom. eSIM4Travel sells two Germany lines on eSIMDB: one on Vodafone and O2, and a slightly pricier one on Vodafone, T-Mobile (Telekom) and O2. eSIMDB does not list Saily’s German networks, so I will not guess. For a city trip any of them should be fine; if you plan long days in the countryside, paying a little more to include Telekom’s network is a reasonable hedge.

Measured coverage tells a similar story. During the regulator’s second national measurement week (24 June to 1 July 2026), more than 60,000 people collected almost 20 million measurement points with the official Mobilfunk-Check app. About 98% of the points were on 4G or 5G, and less than 1% showed no coverage at all. Keep the caveat in mind: crowd-sourced points cluster where people are, so they say little about remote valleys and forests. The Bundesnetzagentur’s Netzcheck map, fed by that app, is where you can look up a specific area.

Trains: ICE Wi-Fi runs on the same mobile networks

Deutsche Bahn offers free Wi-Fi on every ICE, on parts of the Intercity fleet and in selected regional trains, in first and second class with no time limit. DB also explains how it works: long-distance trains use multi-provider equipment that taps all the mobile networks available along the line at the same time, and DB warns that speeds can be lower than you are used to at home. So the train Wi-Fi shares the same gaps as your phone, split across a full carriage. Your own eSIM is the backup, and on regional trains without Wi-Fi it is the only option.

The Swiss border: one neighbor outside EU roaming

Switzerland sits in the middle of Europe but is not in the EU, and the EU roaming rules do not apply there. German consumers learn this the hard way. The consumer advice center Verbraucherzentrale Niedersachsen, in an article updated on 3 July 2026, describes phones set to automatic network selection that picked the strongest signal near the Swiss border, joined a Swiss network and ran up bills: about €110 for hikers who were still in Germany, and €59.50 for a driver using an online navigation app. Its advice is to set network selection to manual.

For a travel eSIM the lesson is about coverage, not bills. Nomad’s Germany plans list Germany as their only covered country, so on a Swiss network a Germany-only plan may simply not connect. I could not verify what each provider’s plan does on a Swiss network, or whether their Europe-wide plans include Switzerland, so check the coverage list before you buy. If you are around Lake Constance, the Basel area or the southern Black Forest, set your eSIM to manual network selection and keep your US line’s data roaming off. If Switzerland is a stop rather than a border you skirt, our Switzerland eSIM guide covers that leg.

Germany travel eSIM prices compared (October 2026)

Below are the single-country Germany ladders for the three providers I cover. Only Nomad’s prices were read live on the provider’s own page, checked on 13 October 2026; Saily’s and eSIM4Travel’s come from eSIMDB, with their update dates in the caption. All of these plans are data-only, with no German phone number.

Plan	eSIM4Travel, Vodafone/O2 (per eSIMDB)	eSIM4Travel, with Telekom (per eSIMDB)	Saily (per eSIMDB)	Nomad (provider page)
1 GB / 7 days	$1.11	$1.28	$4.49	$4.50
3 GB / 30 days	$2.49	$3.49	$8.99	$8.00
5 GB / 30 days	$3.81	$5.26	$12.99	$10.00
10 GB / 30 days	$7.07	$9.67	$19.99	$14.00
20 GB / 30 days	$13.61	$18.48	$25.99	$21.00
50 GB / 30 days	$37.31	Not listed (a 50 GB / 90-day plan is $58.79)	Not listed	$32.00
“Unlimited” daily cap	3 GB/day, then 1 Mbps	Not listed	5 GB/day, then 1 Mbps	2 GB/day, then 1 Mbps
Networks	Vodafone and O2 (5G)	Vodafone, T-Mobile and O2 (5G)	Not stated	O2 and Vodafone (5G)

Read straight across, eSIM4Travel’s Vodafone/O2 line is the cheapest from 1 GB to 20 GB on eSIMDB’s listed prices, from $1.11 for 1 GB to $13.61 for 20 GB. At 50 GB, Nomad is the cheapest at $32.00 against eSIM4Travel’s $37.31; Saily lists no single-country 50 GB plan. Between Saily and Nomad, Saily is cheaper only at 1 GB, by one cent ($4.49 against $4.50), and Nomad is cheaper at 3, 5, 10 and 20 GB. eSIM4Travel’s Telekom-inclusive line costs a little more than the Vodafone/O2 line at each 1 GB to 20 GB size (the 7-day and 30-day plans).

None of the “unlimited” plans is truly unlimited; each is a daily allowance, after which speed drops to 1 Mbps. Nomad’s run $11 for 3 days, $18 for 5 days, $23 for 7 days and $30 for 10 days. Per eSIMDB, eSIM4Travel’s start at $6.53 for 3 days and $19.86 for 10 days, and Saily’s start at $34.99 for 10 days.

Which eSIM I would pick for Germany

• eSIM4Travel: the price leader from 1 GB to 20 GB on these listings. Its Germany plans appear on eSIMDB in two versions, Vodafone/O2 from $1.11 for 1 GB over 7 days, and a Telekom-inclusive version from $1.28. Cairnroam has no discount code for eSIM4Travel, so no coupon applies; confirm the price at checkout, since the figures above are eSIMDB’s listing from 23 September 2026.
• Nomad: the only ladder here I could read on the provider’s own Germany page. It connects to O2 and Vodafone, covers Germany only, and the plan starts automatically when it first connects to a network, or 60 days after purchase, whichever comes first. It is the cheapest option at 50 GB ($32.00). Our code ILEXBDNSXSBA takes $5 off, subject to Nomad’s coupon terms; on the 10 GB plan that is $14.00 minus $5, or $9.00. The 1 GB plan costs less than $5, so I am not quoting a coupon price for it.
• Saily: the prices above are eSIMDB’s listing (updated 4 October 2026); confirm them on Saily’s Germany page at checkout. eSIMDB lists no German network for Saily. Its “unlimited” plans have the largest daily allowance of the three, 5 GB a day. Our code CAIRNR6205 takes $5 off, subject to Saily’s coupon terms; on the 10 GB plan that is $19.99 minus $5, or $14.99. Even after either code, eSIM4Travel’s Vodafone/O2 line at $7.07 for 10 GB stays the cheapest in that row.

On sizing: for maps, messaging, transit apps and the odd photo upload, 3 GB over 30 days is comfortable for a week; heavy video, hotspotting a laptop or long train days where the shared ICE Wi-Fi slows down are when 10 GB or a daily-capped “unlimited” plan makes sense. If Germany is one leg of a longer trip, our guides to Switzerland, Austria and France cover common next stops, and the Cairnroam US traveler hub lists every country we have written up.

When a German prepaid SIM makes more sense

A German prepaid line gives you a German number for calls and texts, which helps with a rental, a doctor’s appointment or a longer stay, and its Allnet Flat plans are very good value per gigabyte. Vodafone’s CallYa plans currently list, per 4 weeks:

• CallYa Start, 2 GB: €4.99.
• CallYa Allnet Flat S, 25 GB: €9.99.
• CallYa Allnet Flat M, 50 GB: €14.99.

Vodafone says all CallYa plans include EU roaming and Wi-Fi calling, come with speeds of up to 300 Mbit/s, and are available as an eSIM. Telekom advertises 5G in all its prepaid plans and top-ups between €15 and €100; I am not quoting a Telekom plan price, because the headline price on Telekom’s page on 13 October 2026 was a limited-time promotion running until that day, not a standing tariff. Two catches apply to both. You must complete the ID check before the line works, online or in a shop, and the plans renew every 4 weeks. Compare that with a travel eSIM: Vodafone’s 25 GB for €9.99 against a 20 GB travel plan between $13.61 and $25.99 in the table above. If you have a week and want to land connected, the travel eSIM is less fuss. If you are staying a month or more and want a German number, the ID check is worth the time.

Entering Germany on a US passport

Germany’s Federal Foreign Office lists the United States as visa-free in its visa requirement list. Its footnote sets the limit: holders of passports from visa-free countries may generally stay no longer than 90 days in any 180-day period, and may not take up work during that time. Three newer rules are worth knowing:

• EES on first entry. The European Commission’s Entry/Exit System registers non-EU nationals’ fingerprints and facial images for short stays. It became fully operational on 10 April 2026 and replaces passport stamping. Your first registration takes extra time at the border, so it helps to have data working before you join the queue.
• No ETIAS yet. The Commission says ETIAS is currently not in operation and no applications are being collected; it will announce the start date several months ahead. Ignore any website selling one.
• Land-border checks. The Commission’s list of temporary internal border controls shows Germany checking its land borders with France, Luxembourg, Belgium, the Netherlands, Denmark, Austria, Switzerland, the Czech Republic and Poland from 16 September 2026 to 15 March 2027. Arriving by train or car from a neighbor, keep your passport on you.

For safety, the U.S. Embassy and Consulates in Germany show Germany at Travel Advisory Level 2, Exercise Increased Caution, citing terrorism. Check the State Department’s current advisory for Germany before you travel, as levels can change.

Cash, the Deutschland-Ticket and phone alerts: why data helps from day one

Carry some euros

The Bundesbank’s study of payment behavior in 2025 found that 55% of recorded purchases were paid cashless, the first time cashless overtook cash. Cash was still the single most-used payment method, at 45% of payments, and mobile payments made up 10%. The catch for visitors is acceptance: a cashless payment was possible in 86% of recorded in-store purchases, so roughly 1 in 7 still could not be paid without cash. About a quarter of respondents said that in the past month they had at least once been unable to pay cashless as they wanted. Keep some euros in your pocket.

The Deutschland-Ticket lives in an app

Deutsche Bahn’s Deutschland-Ticket costs €63 a month and covers buses, subways, S-Bahn and regional trains nationwide. It is sold only as a subscription and delivered as a mobile ticket in the DB Navigator app, so you need the app and data to use it. It is not valid on IC, EC or ICE long-distance trains or on FlixTrain. The detail visitors miss: it renews monthly unless you cancel by the 10th of the month, effective at the end of that month.

Phone alerts, 110 and 112

Germany has had Cell Broadcast warnings since 23 February 2023. According to the federal civil protection office BBK, they go to all phones logged into a cell, with no registration, on Android 11 or later and iOS 16.1 or later. The message itself is short and links to the federal warning portal, so the full text needs data, and the BBK still recommends installing the NINA warning app. The BBK does not say whether alerts reach phones on foreign SIMs or in which language, so do not rely on them alone.

For emergencies, dial 112 for an ambulance or the fire service and 110 for the police. The European Commission notes that 112 works free of charge everywhere in the EU. A data-only eSIM has no phone number, so keep your US line switched on for calls and texts.

Arrival checklist for Germany

1. Check your phone first: it must support eSIM (on iPhone, an iPhone XS, XS Max, XR or later) and be unlocked. Go to Settings > General > About; “No SIM restrictions” next to Carrier Lock means it is unlocked, and per Apple’s unlock guide only your carrier can unlock it. Pixel users can check Google’s dual SIM page.
2. Check VoLTE on older phones, since Germany has no 3G and plans to switch off 2G in 2028.
3. Buy and install the eSIM at home on Wi-Fi. Read the network list, and if Switzerland is on the route, make sure the coverage list includes it.
4. On landing, switch the travel eSIM on as your data line, keep your US line on for calls and SMS, and turn the US line’s data roaming off.
5. Near the Swiss border, set network selection to manual.
6. Install DB Navigator and NINA before you leave arrivals, and keep some euros for places that do not take cards.

FAQ

Can a tourist buy a prepaid SIM in Germany?

Yes, but not as a buy-and-go product. German law requires the provider to verify your identity before activating a prepaid line, and a passport is an accepted document. You can do this in a shop or online, for example through Telekom’s Online-Ident or Vodafone’s online or post-office check. A travel eSIM bought before you fly roams on German networks and does not involve that German activation step.

Does my US phone plan get free EU roaming in Germany?

No. Roam Like At Home covers customers of EU operators. A US carrier’s line roams on that carrier’s own international terms, so check your plan before you go.

Which travel eSIM is cheapest for Germany?

On the listed prices in our table, eSIM4Travel’s Vodafone/O2 line is cheapest from 1 GB to 20 GB, from $1.11 for 1 GB over 7 days to $13.61 for 20 GB over 30 days. At 50 GB over 30 days, Nomad is cheapest at $32.00.

Will my old phone work in Germany?

Germany switched off 3G in 2021, and the operators plan to switch off 2G in 2028. A phone without VoLTE still makes calls over 2G today, but will lose voice and emergency calls once 2G is gone, so check VoLTE support before you travel.

Does a Germany eSIM work in Switzerland?

Do not assume it does. Switzerland is outside EU roaming, and Nomad’s Germany plans cover Germany only. If Switzerland is on your route, buy a plan whose coverage list includes it, and set manual network selection near the border.

Are unlimited eSIM plans for Germany really unlimited?

No. They are daily allowances: Nomad 2 GB a day, eSIM4Travel 3 GB a day and Saily 5 GB a day, after which speed drops to 1 Mbps.

Do I need ETIAS or EES for Germany?

EES applies: on your first entry you register fingerprints and a facial image at the border, with nothing to do in advance. ETIAS is not in operation yet, and no applications are being collected.

Is ICE train Wi-Fi enough, or do I need my own data?

ICE Wi-Fi is free with no time limit, but Deutsche Bahn says it runs on the mobile networks along the line and can be slower than at home. On regional trains Wi-Fi is only offered on selected services, so your own eSIM is the reliable option.

What number do I call in an emergency in Germany?

Dial 112 for ambulance and fire, 110 for police. Keep your US line on, because a data-only eSIM has no number for calls or texts.

References and further reading

1. Gesetze im Internet — § 172 TKG (German Telecommunications Act): identity verification before activating prepaid lines.
2. Bundesnetzagentur — Identification procedures for prepaid mobile services: approved alternative procedures such as video ident.
3. Bundesnetzagentur — 2G switch-off: 3G shutdown in 2021, 2G dates in 2028 and the VoLTE issue.
4. Bundesnetzagentur — Mobile monitoring update (press release, 15 December 2025): 5G and 4G area coverage by operator.
5. Bundesnetzagentur — Second national mobile measurement week (press release, 9 July 2026): crowd-sourced coverage results.
6. Bundesnetzagentur — Extension of mobile frequencies (press release, 24 March 2025): coverage obligations and 1&1 as fourth operator.
7. Bundesnetzagentur — Mobile networks and frequencies: frequency bands in use.
8. European Commission — Roaming: Roam Like At Home scope.
9. European Commission — Roaming: Questions and Answers: rules prolonged until 2032.
10. Verbraucherzentrale Niedersachsen — When your phone joins a Swiss network (3 July 2026): border roaming cases and manual network selection.
11. Federal Foreign Office — Visa requirement list: US passport holders, 90 days in 180.
12. European Commission — Entry/Exit System (EES): biometric registration, fully operational since 10 April 2026.
13. European Commission — ETIAS: current status.
14. European Commission — Temporary reintroduction of border control: German land-border checks to 15 March 2027.
15. U.S. Embassy and Consulates in Germany: Travel Advisory Level 2.
16. U.S. Department of State — Germany Travel Advisory: check the current level before you travel.
17. Deutsche Bundesbank — Payment behavior in Germany 2025 (17 June 2026): cash and cashless shares, acceptance.
18. Deutsche Bahn — Deutschland-Ticket: price, validity and cancellation.
19. Deutsche Bahn — Wi-Fi on the ICE: availability and how it works.
20. BBK — Cell Broadcast: phone warnings and the NINA app.
21. European Commission — 112: the EU emergency number.
22. Telekom — Prepaid plans: Online-Ident activation and top-ups.
23. Vodafone — CallYa prepaid: plans, ID check and registration of retail cards.
24. Nomad — Germany eSIM: plans, networks, coverage and activation window.
25. eSIMDB — Nomad Germany: cross-check of Nomad’s ladder.
26. eSIMDB — Saily Germany: plan ladder, updated 4 October 2026.
27. eSIMDB — eSIM4Travel Germany: plan ladders and networks, updated 23 September 2026.
28. Apple — Using Dual SIM with an eSIM: eSIM-capable iPhone models.
29. Apple — How to unlock your iPhone for use with a different carrier: checking carrier lock.
30. Apple — Use eSIM while traveling internationally: keeping your home line for iMessage and FaceTime.
31. Google — Use dual SIMs on a Pixel phone: dual SIM support.

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Last updated: 2026-10-13