# What to pack for Portugal

> Based on Portugal's season and sights, here is what to pack — including an adapter and an eSIM.

Based on Portugal's season and sights, here is what to pack — including an adapter and an eSIM.

## Get online at the airport

Install a MerrSIM eSIM for Portugal (from €1.49, 10 GB €8.99) before departure and you’re online the moment you land at Lisbon Humberto Delgado Airport — no WiFi hunt, no roaming.

[MerrSIM — eSIM Portugal](https://merrsim.com/destinations/esim-plans-for-portugal)

## Does your phone support eSIM?

Before you buy, check two things. First, the phone must be eSIM-compatible: iPhone XR/XS and newer, Samsung Galaxy S20 and newer, Google Pixel 3 and newer, and many recent Motorola, Huawei and Oppo models. Second, it must be carrier-unlocked. You can verify by dialling *#06# — if an EID number appears, your phone supports eSIM. This saves you any surprises when you arrive in Portugal.

## No registration, no shop queue

Many EU countries require identity verification for local SIM cards, which means a queue, a shop and sometimes even a local address. A travel eSIM skips all of that: it is sold as an international data service, with no passport and no contract. You have it ready before you set off for Portugal, so you land and are online immediately — no time wasted at the airport and no risk of surprise roaming bills.

## Common mistakes to avoid

Three mistakes often spoil the start of a trip. First: buying the eSIM at the last minute at the airport, when you have no WiFi to install it — do it at home. Second: forgetting to switch on data roaming for the eSIM line, which makes it look like it is not working. Third: leaving mobile data on your home SIM, which racks up roaming charges. Check these three and your connection in Portugal will be trouble-free.

## eSIM versus roaming

Roaming with your home carrier can be expensive outside bundles — sometimes several euros per gigabyte, with bills that land after the trip. A local eSIM turns that into a fixed price you know up front: you pay in advance, you know exactly how many GB you have, and there are no hidden fees. For a trip to Portugal, that means peace of mind and often a real saving compared with leaving roaming switched on unchecked.

## Tips to save data

A few small habits make your gigabytes last in Portugal. Download Google Maps offline before you head out, set video quality to “Auto” or 480p, and turn off background app refresh. Use hotel WiFi for big updates and high-resolution photo uploads. With these steps, even a modest plan covers the whole trip, and your hotspot stays free for the moments you really need it.

## FAQ

### How do I get online as soon as I arrive in Portugal?
Activate a MerrSIM eSIM for Portugal (from €1.49, 10 GB €8.99) by QR before departure; you connect automatically at the airport.


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Author: Etnik Beqiri  
Published: 2026-05-28  
Source: https://merrsim.com/en/blog/cfare-te-marresh-portugal-en