Erasmus is one of the most transformative experiences a university student can have — new city, new culture, new language, new friends. It is also a logistical exercise that requires planning. One of the most frequently overlooked parts of that planning is connectivity: how do you stay in touch with family at home, navigate an unfamiliar city, manage university coursework, and keep your social life running — all without your phone bill becoming a financial disaster?

This guide is specifically for Erasmus students heading to European destinations. It covers every connectivity option — from eSIM to SIM cards to portable WiFi — with honest advice on what works, what doesn’t, and how to keep costs manageable on a student budget.

The EU Roaming Rules: What They Do and Don’t Cover

If you’re an EU student with an EU phone plan, EU roaming regulations (roam like at home) mean you can use your data plan in other EU countries without extra charges — up to your plan’s data limit. But there are important limitations. Fair use policies mean some carriers throttle speeds after a daily threshold. And non-EU students — those coming from the UK, Turkey, the US, or elsewhere — get no benefit from EU roaming rules at all.

For most Erasmus students, relying entirely on home carrier roaming for 4-6 months is not practical. Either the data runs out, the speeds get throttled, or the costs become significant. A dedicated local or regional plan is almost always the better choice.

Option 1: eSIM — Best for Arrival and Short Semesters

A ConnectPls eSIM is the fastest way to get connected at your Erasmus destination. You activate it before you leave home — takes about 10 minutes — and when you land, your phone connects automatically. No hunting for a phone shop in an unfamiliar city on your first jet-lagged day.

eSIM plans for European destinations typically cost 1-3 euros per day. For a 4-week semester start period while you’re getting settled, that’s 30-85 euros — far less than roaming charges on most home carrier plans. Most phones from 2019 onwards support eSIM.

Option 2: Local SIM Card — Best Value for Full Semesters

For a full Erasmus semester (4-6 months), a local SIM card from a carrier in your destination country almost always gives you the best data value. Local prepaid plans in most European countries offer 20-50GB per month for 10-20 euros. The practical approach: use a ConnectPls eSIM for the first 2-3 weeks while you settle in, then switch to a ConnectPls SIM card subscription for the rest of the semester.

Country-by-Country Quick Guide for Erasmus Students

Spain (most popular Erasmus destination): Movistar, Vodafone ES, Orange — prepaid plans very competitive. Germany: Telekom, Vodafone DE, O2 — good coverage, recommend budget MVNOs like congstar. France: Orange, SFR, Bouygues — solid urban coverage. Italy: TIM, Vodafone IT, WindTre — very cheap data pricing. Netherlands: KPN, T-Mobile NL — excellent coverage throughout. Portugal: NOS, MEO, Vodafone PT — very competitive pricing. Poland: Play, T-Mobile PL — excellent coverage, among cheapest data in Europe.

University WiFi: What to Realistically Expect

Most European universities provide eduroam WiFi — a shared academic network that works across participating institutions in 100+ countries. If your home university is an eduroam participant, your existing university login will connect you to WiFi at your Erasmus university. This is excellent for on-campus work but doesn’t help with navigation, off-campus social life, or accommodation WiFi.

Student accommodation WiFi quality varies enormously. Having your own mobile data plan through ConnectPls means you’re never dependent on accommodation WiFi quality for important work or calls.