Guinea-Bissau has 4G coverage in Bissau and select towns, with travel eSIM plans available from Saily, Airalo and Holafly connecting via MTN or Orange.
Our comparison ranks every available eSIM plan for Guinea-Bissau by price per GB and coverage — updated automatically whenever plans change.
Plans are ranked by a combination of real traveler usage, pricing, data value, and coverage reliability. Rankings update automatically as providers change their offerings.
Guinea-Bissau is a small West African nation whose mobile landscape is shaped by MTN Guinea-Bissau and Orange Guinea-Bissau as the two main operators. MTN is generally considered to have slightly wider coverage, while Orange is a solid alternative particularly in Bissau. 4G is available in Bissau and a handful of larger towns, but connectivity drops sharply outside the capital. The famous Bijagós Archipelago — a UNESCO Biosphere Reserve and increasingly popular eco-tourism destination — has very limited mobile coverage; most islands have little to no 4G. No 5G has been deployed in Guinea-Bissau. The country is not a mass eSIM market, so plans tend to be limited in number but functional for travellers sticking to urban areas. Budget $6–$20 for a typical trip.
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Most travel eSIMs are data-only — and that covers 90% of travelers perfectly. WhatsApp, FaceTime, and Google Voice handle calls and video seamlessly. Some providers do offer plans with a local Guinea-Bissau number if you genuinely need one.
Not sure which plan to pick? Here's what we recommend based on your travel style:
Bissau is where you'll find the best connectivity in Guinea-Bissau. MTN and Orange both offer usable 4G in the capital's centre and main districts. A 2 to 3 GB plan for 7 days is sufficient for maps, messaging and moderate social media use during a city stay.
The Bijagós islands are Guinea-Bissau's top eco-tourism draw, but mobile coverage is extremely limited. Bubaque has the best connectivity among the islands; remote islands have little to no signal. Download offline maps, booking confirmations and travel info before leaving Bissau. A small data plan is adequate — you'll barely use it on the islands.
Gabú and Bafatá have limited 4G or 3G connectivity. Road journeys between towns will often have no signal. Use your data in Bissau to plan routes and download maps offline. A basic 2 GB plan is enough if your focus is rural exploration.
Business hotels and offices in Bissau typically have Wi-Fi, but mobile data provides backup connectivity. A 3 to 5 GB plan for 30 days covers calls, email and navigation without overspending in this limited eSIM market.
Guinea-Bissau has 2 major mobile operators: MTN Guinea-Bissau, Orange Guinea-Bissau. All offer nationwide 4G coverage, with 5G now available in major cities.
4G coverage in Guinea-Bissau is primarily limited to Bissau city and immediate surroundings. Gabu and Bafatá have some 4G presence but reliability varies. The Bijagós Archipelago islands (Bubaque, Bolama, Orango) generally have only 2G/3G at best, with some islands having no signal at all. MTN Guinea-Bissau tends to have the broadest reach for international eSIM connections. Travellers venturing beyond Bissau should download offline content before departure.
Most travel eSIM providers use MTN Guinea-Bissau or Orange Guinea-Bissau infrastructure in Guinea-Bissau — both consistently ranked among the best networks in the region. You'll get strong, reliable signal in all major tourist areas.
MTN Guinea-Bissau is the go-to network for most travel eSIMs due to slightly wider coverage. Orange is a solid option in Bissau specifically. Most international eSIM providers connect to MTN for Guinea-Bissau plans.
Guinea-Bissau is a niche market with a limited number of plans, which means prices per GB can be higher than popular destinations. Expect to pay $6–$20 for a 5 GB plan.
Guinea-Bissau has generally open internet access. Social media and messaging apps work normally in Bissau. Mobile speeds are adequate for basic browsing and messaging on 4G.
Ferries and small boats connect Bissau to the Bijagós. Use your mobile data in Bissau to arrange transport and accommodation before heading to the islands, as connectivity on most islands is near zero.
Our top picks are ranked by real traveller usage data, price per GB and reliability in Guinea-Bissau's key areas. We compare Saily, Airalo, Holafly, Ubigi, GigSky and more — independent ranking.


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Yes — Guinea-Bissau is covered by international eSIM providers including Saily, Airalo, Holafly, Ubigi and GigSky. These eSIMs typically connect to MTN Guinea-Bissau. Local Guinean operators do not offer eSIM directly. Coverage is functional in Bissau and limited elsewhere.
Saily and Airalo are the top picks for Guinea-Bissau, offering reliable plans via MTN at competitive prices. Holafly is an option for unlimited data. For multi-country West Africa trips, regional plans from Ubigi or GigSky can offer better value. Our real-time comparison shows all current available plans.
Most travel eSIMs for Guinea-Bissau connect to MTN Guinea-Bissau, which has the widest national coverage. Orange Guinea-Bissau is the second operator and is used by some providers. There are only two main mobile operators in the country.
4G is available in Bissau and a limited number of larger towns. The Bijagós Archipelago and most rural areas have only 2G or 3G at best, with some remote areas having no coverage. Guinea-Bissau has no 5G deployment.
Mobile coverage in the Bijagós is very limited. Bubaque, the main island, has basic connectivity. Most other islands (Orango, Formosa, Caravela) have minimal or no signal. Download offline maps, guides and contacts before leaving Bissau.
For a Bissau-focused trip, 2 to 3 GB covers 7 days of maps, messaging and light social media. If you're heading to the Bijagós, a small plan of 1–2 GB is sufficient since you'll use most data before reaching the islands. For longer stays, a 5 GB plan provides adequate flexibility.
Guinea-Bissau's coastal landscapes and Bijagós islands make for a unique West African adventure — keep a reliable eSIM for your time in Bissau and download everything you need before heading to the islands. Whether you're a light or heavy data user, there's an eSIM plan that fits your trip perfectly.
Compare all eSIM plans for Guinea-Bissau 🇬🇼Affiliate disclosure: MyBestSim uses affiliate links. If you purchase through our links, we may earn a commission — at no extra cost to you. This doesn't affect our rankings, which remain fully independent.