# How much data do you need for Portugal?

> How much data for Portugal: 5 GB a week, 10 GB two weeks. MerrSIM plans from €1.49.

Before buying a Portugal eSIM, work out how many GB you need. It depends on your days and what you do online. In Lisbon’s Alfama, the yellow tram among azulejos is a perfect Instagram shot — post it with an eSIM.

## How much data you need

- Light use (maps, WhatsApp): ~300 MB/day
- Moderate use (social, photos): ~700 MB/day
- Heavy use (video, hotspot): 1–2 GB/day

Multiply by your days and add a little buffer.

## The right MerrSIM plan

| MerrSIM plan | Price | Validity |
| --- | --- | --- |
| 1 GB | €1.49 | 7 days |
| 5 GB | €5.49 | 30 days |
| 10 GB | €8.99 | 30 days |
| 20 GB | €15.99 | 30 days |

Lisbon has steep hills; tram apps on an eSIM save your legs.

**Ready for Portugal?** See plans at [MerrSIM — Portugal eSIM](https://merrsim.com/destinations/esim-plans-for-portugal), from €1.49, instant QR activation, no physical SIM and no roaming.

## Activation in a few minutes

Do the install before departure, while on WiFi. Open your phone settings, choose to add an eSIM and scan the QR code you received by email. Label the profile “Portugal” so it is easy to spot. When you land, set the eSIM as your data line and switch on data roaming for it — that is normal for travel eSIMs and adds no fees, because the plan is prepaid. Within seconds you are online, with no need to hunt for public WiFi.

## 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.

## 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.

## How an eSIM works

An eSIM is a digital SIM built into your phone: there is no physical card to insert. You buy it online, get a QR code by email and scan it in your settings. Once installed, the profile lives on your phone and activates when you reach Portugal, connecting automatically to a local partner network. You can keep your main SIM at the same time, so your number still gets calls and texts while the eSIM handles data.

## 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.

## FAQ

### Does the eSIM cover the Algarve?
Yes, the Algarve is well covered; Madeira and the Azores are separate regions.

### Which eSIM is best for Portugal?
MerrSIM offers the best value: from €1.49, local 4G/5G, hotspot and EUR billing.


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Author: Etnik Beqiri  
Published: 2026-05-30  
Source: https://merrsim.com/en/blog/how-much-data-portugal