Free eSIM for Portugal 
3 GB of free mobile data across Portugal and 38 other European countries. Lisbon's tram 28 to the Algarve cliffs, Porto's port cellars to Madeira's levadas — your phone works from touchdown. No SIM swap, no MEO store queue, no card charge.
Free for new users · Credit card for identity verification only — never charged · Valid 3 days
Why an eSIM beats a Portuguese prepaid SIM
Portuguese prepaid SIMs used to be fairly easy — but since the 2021 anti-fraud law, activation requires a NIF (tax number) or passport registration at an MEO, NOS or Vodafone store. Tourist packs run €10-15 for 3-5 GB. Meanwhile your US carrier bills €10+ per day roaming. A 99esim installs before departure, connects to MEO the moment you taxi to the gate at Humberto Delgado, and skips the store hunt entirely.
- No NIF or passport registration required
- Works across continental Portugal, Madeira and the Azores
- Keeps your home number for Revolut or bank SMS verification
- 3 GB covers a long weekend of Lisbon + Porto trams and miradouros
How Portuguese networks handle 99esim
99esim rides on MEO's wholesale network — the Altice Portugal incumbent and still the only operator with genuine Azores and Madeira coverage. 5G is live in all 18 district capitals plus the autonomous regions, with particularly dense coverage along the Lisbon-Porto Alfa Pendular rail corridor. Rural Alentejo and the Peneda-Gerês national park lean on MEO's mast density too.
Arriving at a Portuguese airport
All ANA-operated airports have full 5G at gates and baggage reclaim. Activate before take-off — MEO latches on the moment your phone leaves airplane mode, useful because Lisbon airport wi-fi is time-limited and Bolt/Uber need data to work.
Metro Vermelha (red line) to Saldanha (15 min) stays fully connected. Aerobus to Rossio is also covered. 5G is strongest at Terminal 1.
Metro Line E (violet) to Trindade (30 min) keeps signal the whole route. Gateway to the Douro valley — your eSIM will be handy for Google Maps on the winding N222 wine road.
Main Algarve gateway. Bus 16 to Faro city (20 min) runs frequently — 4G holds the whole way. Bus/train hop to Albufeira and Lagos also stays connected.
Famous for its challenging approach. Aerobus to Funchal centre (30 min) has full signal across the island's south coast road. MEO is the only operator with solid coverage across the north side of Madeira.
Gateway to the Azores. Bus or transfer to the centre (15 min) — 4G holds across the capital. Note: inland at Sete Cidades and Furnas, coverage thins on the crater rims.
Second Azores hub. Shuttle to Angra (25 min) has steady 4G. Gateway for whale-watching and inter-island hops.
Where your free eSIM works best
What 3 GB actually gets you in Portugal
Portuguese trips lean on Citymapper Lisbon, Bolt rides and lots of pastéis-de-nata photos. A realistic breakdown:
Portugal-specific travel tips
Madeira and Azores are included
Your eSIM treats Madeira and the Azores as domestic Portugal — no inter-region roaming. MEO has the best island coverage by far. Levada walks on Madeira's north side are largely covered, and São Miguel's Sete Cidades has signal at the viewpoints.
Tram 28 and Lisbon's hills
Lisbon's famous tram 28 climbs through Alfama and Graça. Signal holds throughout the route thanks to MEO's dense urban coverage. Miradouro selfies upload in seconds — useful because the tram is jam-packed and you'll have time for photos.
Algarve coastal drops
The N125 highway between Lagos and Vila Real de Santo António has steady 4G. Some coastal trails (e.g., the Seven Hanging Valleys trail near Benagil) dip briefly at the cliff edges. Download offline maps if hiking the Fisherman's Trail.
Douro Valley wine drives
The winding N222 from Peso da Régua to Pinhão is signal-friendly — MEO has trackside masts. Your eSIM handles Google Maps through the hairpins without dropping. Wineries (quintas) often have wi-fi too.
Crossing into Spain
Overland crossings at Badajoz, Huelva or Chaves switch you to Movistar (covered in the Spain 99esim profile). The transition is seamless on the A6 motorway heading to Madrid — no manual profile switching required.
Travelers who used 99esim in Portugal
"Long weekend in Lisbon and Sintra — eSIM held up on tram 28 and across the Pena Palace grounds. Zero hiccups."
"Two weeks in Madeira doing levada walks. Signal surprised me on the north coast — had 4G at most of the waterfalls."
"Drove the Douro wine route from Porto to Pocinho. Google Maps never dropped on those hairpin bends. Worth every zero cents."
Frequently asked — Portugal edition
Does the free eSIM work in Madeira and the Azores?
Yes. Both autonomous regions are covered as domestic Portugal — no inter-regional roaming fees. MEO has the strongest coverage on both archipelagos. Signal is excellent around Funchal and Ponta Delgada, with some thinning on Madeira's north coast hiking trails.
Will it work on the Lisbon Metro?
Yes. Metropolitano de Lisboa fitted all four lines (Blue, Yellow, Green, Red) with distributed antenna systems by 2021. Expect steady 4G in tunnels and at every station including the deep airport-to-Saldanha stretch.
Can I use it on the Alfa Pendular train Lisbon to Porto?
Yes. CP and MEO have good trackside coverage along the Linha do Norte. Signal holds at 220 km/h with only brief drops in the Carregado viaduct tunnels. Perfect for 2h30 of email work.
Is 5G included on the free 3 GB plan?
Yes. If your device supports 5G and you're in a covered area (all 18 district capitals, Algarve resort strip, Madeira Funchal, Azores PDL), the free eSIM uses 5G automatically. Data counts the same.
Can I tether to a laptop?
Yes. Tethering is enabled on the free plan. Watch the usage — video streaming over tether burns 3 GB quickly. A 1080p Netflix episode can eat 1.5 GB.
What happens after I use 3 GB?
Top up in the 99esim app in seconds — Portugal-specific add-ons start at €2.99 for 1 GB. No auto-renewal, no card on file, no surprise charges after your trip ends.
Free eSIM in other European countries
Your 3 GB works in all 39 countries. Here are a few more popular destinations:
See all 39 countries →
Ready to claim your free 3 GB in Portugal?
Install the 99esim app, create a free account, and your data is live in about 90 seconds.