Compare the best travel eSIM plans for São Tomé and Príncipe in 2026

See São Tomé and Príncipe discounts

Sao Tome and Principe eSIM: Comparison and Best Plans 2026

A Sao Tome and Principe eSIM is a virtual SIM card that connects you instantly to São Toméan mobile networks (CST, Unitel STP) without a physical card. Plans start at ~$4 for 1 GB.

Do you really need an eSIM? Sao Tome and Principe does not benefit from free EU roaming. To avoid expensive charges from your home carrier, an eSIM is the economical solution. Free WiFi is limited in hotels and cafes, especially on Principe island, so an eSIM is recommended for reliable connectivity.

Which eSIM fits your trip to São Tomé and Príncipe?

Three common travel styles, three focused picks. Enter the partner promo code at checkout, then fine-tune plans in the comparison table below.

  • Short stay or city break

    A few days on the ground: maps, messaging and socials.

    Recommended minimum: 5 GB

    For short stays, compare data, duration and price across providers: enough for maps, messaging and socials without overpaying.

    Up to 3 plans that match this travel style

    • Ubigi
      1 GB·7 days
      $27.25$24.53
      Coverage:São Tomé and Príncipe
      -10%
    • Roamless
      1 GB·30 days
      $25.95
      Coverage:São Tomé and Príncipe

  • Family & hotspot sharing

    Several phones, mixed usage, you want peace of mind.

    Recommended minimum: 20 GB

    For families, favor large buckets or unlimited for the whole trip, then double-check hotspot rules and fair-use policies.

    Up to 3 plans that match this travel style

    • Ubigi
      1 GB·7 days
      $27.25$24.53
      Coverage:São Tomé and Príncipe
      -10%
    • Roamless
      1 GB·30 days
      $25.95
      Coverage:São Tomé and Príncipe

  • Remote work & digital nomads

    Video calls, large files, sustained mobile usage.

    Recommended minimum: 30 GB

    For remote work, aim for a comfortable allowance (often 30+ GB) or unlimited, and validate network coverage and stability for your destination.

    Up to 3 plans that match this travel style

    • Ubigi
      3 GB·15 days
      $53.41$48.07
      Coverage:São Tomé and Príncipe
      -10%
    • Roamless
      1 GB·30 days
      $25.95
      Coverage:São Tomé and Príncipe

Not sure which eSIM plan to choose for São Tomé and Príncipe? We'll hand-pick the best ones just for you

Personalised selection with promo codes & direct links, then reminders before you leave

14 d

Compare the best esim plans for São Tomé and Príncipe in 2026

5 plans found · Last update:

Use the “Countries visited” card above the table, or Filters, to keep only eSIM plans that cover every country you select.

Countries you visit

Select the countries on your itinerary: only plans that cover every selected country stay visible.

No countries selected yet.
#1
Ubigi
São Tomé-Et-Principe Forfait eSIM prépayée - 1Go | Ubigi
Ubigi
Coverage:São Tomé and Príncipe
Data
1.00GB
Duration
7 days
Price/GB
$24.53
Code-10% With discount
$24.53
$27.25
#2
Roamless
Africa - 30 Days
Roamless · Unitel
Coverage:São Tomé and Príncipe
Data
1.00GB
Duration
30 days
Price/GB
$25.95
$25.95
#3
Roamless
Africa - 30 Days
Roamless · Unitel
Coverage:São Tomé and Príncipe
Data
3.00GB
Duration
30 days
Price/GB
$19.65
$58.95
#4
Roamless
Africa - 30 Days
Roamless · Unitel
Coverage:São Tomé and Príncipe
Data
2.00GB
Duration
30 days
Price/GB
$22.98
$45.95
#5
Ubigi
São Tomé-Et-Principe Forfait eSIM prépayée - 3Go | Ubigi
Ubigi
Coverage:São Tomé and Príncipe
Data
3.00GB
Duration
15 days
Price/GB
$16.02
Code-10% With discount
$48.07
$53.41

Why an eSIM is Recommended for Sao Tome and Principe

No Free EU Roaming

Unlike European countries, Sao Tome and Principe does not benefit from free EU roaming. Your home plan will be expensive: between $2 and $5 per MB depending on your carrier. For a one-week trip with moderate usage (browsing, social media), you can easily spend $50 to $100 on roaming.

Limited Free WiFi

Free WiFi is limited in São Toméan hotels and cafes, especially on Principe island:

  • Availability: limited in some areas
  • Security: unsecured public networks, hacking risks
  • Reliability: unstable connections, frequent dropouts
  • Mobility: impossible to use while traveling (transport between islands, natural areas)

An eSIM offers secure and reliable connectivity everywhere, recommended for traveling in Sao Tome and Principe.

Network Coverage in Sao Tome and Principe

Sao Tome and Principe has good 4G coverage in main areas:

Carrier Coverage 4G Market Share Used by
CST Sao Tome, main areas Yes Leader Airalo, GoMoWorld
Unitel STP Sao Tome, main areas Yes Significant Holafly, Saily

Coverage by destination

  • Sao Tome (city): excellent 4G coverage in the capital
  • Sao Tome (island): good coverage on the main island
  • Principe: variable coverage depending on areas
  • Natural areas: variable coverage, limited in some remote areas

Note: Coverage is good in main areas of Sao Tome. On Principe island and in remote natural areas, coverage may be variable.

How to Install Your Sao Tome and Principe eSIM

  1. Purchase your plan (QR code received by email in 2 min)
  2. Install 24-48h before departure from your WiFi
  3. Activate upon arrival in Sao Tome and Principe (timer starts)
  4. Keep your home SIM for calls and texts

Compatibility: iPhone XS+, Samsung S20+, Pixel 3+, Xiaomi 12+, OnePlus 8+

Best Sao Tome and Principe eSIM 2026

Comparatif

Top 5 eSIM São Tomé and Príncipe 2026

Voir tout →
Voir tous les codes promo

Why these providers?

  • Airalo: global leader (8M+ users), CST network, code ESIMP15 (-15%)
  • GoMoWorld: CST network, code ESIMP (-10%), best value for money
  • Holafly: unlimited + hotspot, ideal for heavy users and families
  • Saily: built-in NordVPN to secure public WiFi connections
  • Ubigi: reliable network, good alternative

Conclusion

For all travelers to Sao Tome and Principe, an eSIM is highly recommended as home roaming is very expensive ($2 to $5 per MB) and free WiFi is limited in some areas.

Best choice: Airalo 5 GB at $8.50 with code ESIMP15 offers the best value for money on the CST network.

For heavy users: Holafly unlimited eliminates any stress, even for streaming and hotspot.

Small budget: Saily 3 GB at $6.20 with code ESIMP offers an economical solution.

Sao Tome and Principe eSIM FAQ

FAQ

What is the best eSIM for Sao Tome and Principe in 2026?

Airalo offers the best value for money: 5 GB for $8.50 with code ESIMP15 on the CST network. For small budgets, Saily offers 3 GB at $6.20 with code ESIMP. For unlimited, Holafly from $19.

Do I need an eSIM for Sao Tome and Principe?

Yes, highly recommended. Home roaming costs between $2 and $5 per MB in Sao Tome and Principe. For a week with moderate usage, you can easily spend $50 to $100. An eSIM costs ~$4 for 1 GB. Free WiFi is also limited in some areas.

How much does a Sao Tome and Principe eSIM cost?

From ~$4 for 1 GB. Best value: Airalo 5 GB at $8.50 with code ESIMP15. Very competitive prices compared to home roaming.

What is the network coverage in Sao Tome and Principe?

Good 4G coverage in main areas of Sao Tome. Variable coverage on Principe island and in remote natural areas. Excellent coverage in the capital.

Does the eSIM work on Principe island?

Yes, but variable coverage. Coverage is variable on Principe island depending on areas. In main areas, coverage is generally good. In remote areas, it may be limited.

Can I use the eSIM between the two islands?

Yes, generally. The eSIM generally works on both islands (Sao Tome and Principe). However, when traveling between islands, verify that your plan covers both islands.

Can I share the connection (hotspot)?

Holafly: allowed. Airalo: generally yes. GoMoWorld, Saily: works but not guaranteed. Plan larger plans for 2 people or opt for Holafly unlimited.

When should I install my eSIM?

24-48 hours before departure from your WiFi. Validity starts at first connection in Sao Tome and Principe. You can install before leaving and activate upon arrival.

What if the eSIM doesn't work?

1. Verify eSIM is set as primary data line 2. Enable "Data Roaming" 3. Restart your phone 4. Verify you are in Sao Tome and Principe (timer starts at first connection) 5. Contact 24/7 support (Airalo, GoMoWorld, Holafly)

Written and reviewed by
Valentin Fourier - Digital Nomad
Valentin FourierDigital Nomad

Developer and digital nomad, I lived between Canada and the United States before continuing to explore the world. After struggling with internet connectivity abroad one too many times, I created eSIM Planet to compare plans clearly and honestly. Every article is carefully written and reviewed to save you time and money.

Last updated : April 2026

eSIM providers available for São Tomé and Príncipe

Roamless São Tomé and PríncipeUbigi São Tomé and Príncipe

Nearby countries

eSIM Egypt - comparez les forfaits
Drapeau Egypt

Egypt

View offers →

eSIM Morocco - comparez les forfaits
Drapeau Morocco

Morocco

View offers →

eSIM South Africa - comparez les forfaits
Drapeau South Africa

South Africa

View offers →

Continue on eSIM Planet

eSIM promo codes: São Tomé and PríncipeUnlimited eSIM: São Tomé and PríncipeVerified eSIM promo codesCompare travel eSIMs

Popular destinations

eSIM JapaneSIM United StateseSIM ThailandeSIM TurkeyeSIM MoroccoeSIM IndonesiaeSIM VietnameSIM GreeceAll destinations →

eSIM providers

HolaflySailyAiraloGigSkyNomadUbigiAll providers →
Disclaimer: This website uses affiliate links as a source of revenue to remain sustainable and continue delivering valuable information to our visitors. By using these links, you help us avoid relying on excessive advertisements. We truly appreciate your understanding and support.
Popular destinations
eSIM FranceeSIM United StateseSIM SpaineSIM ItalyeSIM GermanyeSIM JapaneSIM ThailandeSIM MoroccoeSIM TurkeyeSIM United KingdomeSIM PortugaleSIM GreeceeSIM IndonesiaeSIM VietnameSIM AustraliaeSIM CanadaeSIM MexicoeSIM BrazileSIM South KoreaeSIM IndiaeSIM NetherlandseSIM SwitzerlandeSIM SingaporeeSIM United Arab EmirateseSIM Egypt
Sitemap
All countrieseSIM OperatorsDiscountsItems