The best eSIM for Guinea-Bissau is a foreign travel eSIM installed before you fly, because neither Orange nor MTN sells consumer eSIMs locally. The country has no commercial 5G, and 4G is concentrated in Bissau and a few towns. This guide compares the two networks, flags the Bijagós island gaps and the airport kiosk problem, and shows how to plan data around a Bissau, islands and interior itinerary.
Which eSIM is best for Guinea-Bissau in 2026?
eSIM Prime is our best overall pick for US travelers heading to Guinea-Bissau, mainly because you can install it at home and land with data already set up. Check the network and data allowance at checkout, since plan details can change.
Orange and MTN sell only physical prepaid SIMs, and a local SIM requires passport registration. Visitors who want an eSIM must therefore buy a foreign travel eSIM. These profiles run on the same Orange or MTN towers as local SIMs, so they will not remove rural gaps. Expect 4G mainly in Bissau and no 5G anywhere.
Guinea-Bissau eSIM snapshot comparison
| Provider | Best for | Plan style | Hotspot | Notable consideration |
|---|---|---|---|---|
| eSIM Prime | Best overall for US travelers | Travel eSIM installed before departure | Check plan details at checkout | Confirm Orange or MTN network and data size before buying |
| Airalo | Budget short stays | Fixed data-only; local 1 GB for 7 days from $9.50 on Orange | Not verified | Activate within 90 days; no local number or SMS |
| Maya Mobile | Instant activation | 1, 3, 5 and 10 GB fixed plans from $8.99 for 1 GB | Not verified | Fixed data, so pick the size carefully |
| Ubigi | Larger data and a 7-day unlimited option | Large fixed plans and unlimited with fair-use throttling | Not verified | MTN and Orange partners; no 5G |
| Saily | Simple app-based purchase | Fixed-data plans from about $6.99 for 1 GB | Not verified | Check the current price before buying |
| Holafly | Unlimited-style longer stays | Per-day unlimited-style plans | Not verified | Verify the unlimited claim on its page before buying |
| Simbye | Budget on MTN | 1 GB for 7 days at $9.99; 3 GB for 30 days at $29.99 | Allowed | Data-only; calls through voice apps |
Why an eSIM matters for Bissau, the Bijagós and the interior
An eSIM matters because Osvaldo Vieira International Airport cannot be relied on for a SIM. The kiosks are not always staffed, and evening arrivals often find them closed. Installing a profile before departure means your phone has data when you step out to find a taxi.
A local SIM also requires passport registration, which means finding an open shop in Bissau on your first day. Most itineraries start in the capital, around Mercado de Bandim, Porto Pidjiguiti and the Bissau Velho colonial quarter. From there, travelers typically take the ferry to Bubaque and the Bijagós, or head overland to Cacheu, Bafatá, Gabú and Cantanhez.
US carriers' home plans generally mean costly international roaming or paid day passes in Africa, so check your carrier's rates before relying on them. A travel eSIM is usually the more predictable option. It does not fix dead zones, though. If there is no tower signal on a Bijagós beach, no eSIM will create one.
What coverage should you expect: Orange or MTN?
Expect usable 4G from both operators in central Bissau, with Orange generally stronger for data speed in the capital. Outside the city, MTN is reported to have the broader rural footprint, which helps in the east. Neither network offers 5G.
Orange holds about 58% of the market and MTN about 42%. Both cover the centre and main districts of Bissau. Pockets of 4G are reported in Canchungo and Bissorã, and in larger towns such as Gabú and Bafatá, where reliability varies. In most provincial towns 3G is the norm, and speeds drop noticeably. Some aggregator pages claim 5G in major cities, but those claims contradict other sources and should be ignored.
Reliability needs planning too. Frequent power cuts can take towers offline for an hour or two. Orange suffered a nationwide outage of about four hours in July 2024, while MTN reports roughly 99.98% uptime. The UN rates the national networks as acceptable for daily use but in need of a backup for emergencies. When people ask about the best network in Guinea-Bissau, the honest answer depends on where you are going: Orange for the capital, MTN for the east and remote districts.
How do you choose the best eSIM for Guinea-Bissau?
Choose by network first, then data size and validity. Travel eSIMs for this country run on either Orange or MTN (also branded Spicetel or Areeba), depending on the provider, so check which network a plan uses before you pay.
- Network: Orange for Bissau speed, MTN for broader rural reach.
- Data size and validity: Match the allowance to your days; most plans here are fixed data rather than unlimited.
- Hotspot: Several providers have not verified hotspot rules for this country, so confirm before relying on it.
- No local number: Plans are data-only, so plan calls and messages through voice apps.
- Activation window and top-ups: Check how long you have to install and whether you can add data mid-trip.
Pick by trip style in Guinea-Bissau
- Bissau city weekender: An Orange-based plan with a small data allowance covers maps, messaging and rides around Bandim and Bissau Velho.
- Bijagós island hopper: For Bubaque, Orango and João Vieira-Poilão, coverage is limited. Download maps and guides before the ferry; a small plan is enough.
- Eastern overland traveler: For Gabú, Bafatá and the Gabú–Koundara bush taxi route, an MTN-based plan is the better fit.
- Cantanhez and Varela nature traveler: Expect gaps around the chimpanzee trails of Cantanhez National Park and the beaches at Varela, so rely on offline maps.
- NGO or business traveler in Bissau: Choose a larger allowance, verify hotspot rules and keep a backup plan for outages.
Top eSIM providers for Guinea-Bissau
The providers below are listed in order of our recommendation. Competitor details come from current public listings and can change, and anything we could not verify is marked as such.
Stay connected abroad — no SIM card needed
Activate your eSIM before you land. No queues, no contracts, no roaming surprises — just fast local data from the moment you arrive.
Get eSIM Guinea-BissaueSIM Prime: best overall for Guinea-Bissau
eSIM Prime is our top pick for US travelers because it removes the airport kiosk gamble. You install the profile at home, land with data ready, and avoid hunting for a registered SIM shop after an evening arrival. Setup is simple and support is available if the install stalls.
Before buying, confirm the network and data allowance at checkout. You can browse the eSIM Guinea-Bissau plan page for current options. Remember that it uses the same Orange or MTN towers as everyone else, so thin rural coverage and island gaps still apply.
Airalo: budget data for short stays
Airalo's local plan starts at $9.50 for 1 GB over 7 days and runs on the Orange network. Plans are fixed and data-only, with no unlimited option for Guinea-Bissau. Regional Africa plans also cover the country.
The eSIM must be activated within 90 days of purchase. Airalo sells no eSIM with a local number or SMS for this country, and hotspot support has not been verified.
Maya Mobile: instant prepaid data
Maya Mobile offers four fixed-data sizes: 1 GB at $8.99, 3 GB at $18.99, 5 GB at $32.99 and 10 GB at $52.99. Activation is instant online, which suits last-minute trips.
Because the data is fixed, estimate usage before choosing. Hotspot support has not been verified.
Ubigi: bigger allowances and a 7-day unlimited
An aggregator listing shows a 25 GB plan for 30 days at $59 and a 7-day unlimited plan at $48. Speeds may be throttled after heavy use, and prices can change. Ubigi's partner list shows MTN and Orange, with no 5G.
It suits longer stays or heavier users, such as business travelers in Bissau. Hotspot rules have not been verified.
Saily: simple app-based plans
Saily is an app-based option with plans from about $6.99 for 1 GB. An older listing showed a 5 GB, 30-day plan at $16.99, so check the current price before buying. Hotspot support has not been verified.
Holafly: unlimited-style for longer stays
Holafly sells unlimited-style plans priced per day. A 2025 comparison listed prices from $9.90 to $306.90 for durations of 1 to 90 days. Another comparison says its Guinea-Bissau plans are limited rather than unlimited, so verify the unlimited claim on Holafly's own page before buying. Hotspot support has not been verified.
Simbye: budget on the MTN network
Simbye runs on MTN (Areeba), with 1 GB for 7 days at $9.99 and 3 GB for 30 days at $29.99. Hotspot is allowed per its product page. The plans are data-only, so calls go through voice apps.
Because it uses MTN, it is a sensible choice for eastern routes toward Gabú and Bafatá.
Staying connected on the Bijagós ferry and island crossings
Do not expect reliable signal on the Bijagós. Ferries and boats link Bissau with Bubaque and the other islands, but mobile coverage on the islands is very limited or absent, and no provider can promise otherwise.
Before the crossing, download offline maps, guides, tickets and lodging confirmations. This matters for Bubaque and for onward trips to Orango, Bolama, Rubane and Cavalo. Tell your lodging and your contacts at home that you may be offline for stretches. If you are heading to João Vieira-Poilão for turtle nesting, arrange meeting points before you leave Bubaque.
How do you check compatibility and install an eSIM for Guinea-Bissau?
Confirm that your phone is eSIM-capable and carrier-unlocked, then install the profile on home Wi-Fi before you fly. The steps below take about 15 minutes.
- Confirm your phone supports eSIM and is unlocked. iPhone XS or newer works, as do many recent Pixel and Samsung models.
- Check which network the plan uses (Orange or MTN) and how much data it includes. You can compare options on the eSIM Guinea-Bissau page.
- Buy and install on Wi-Fi at home, and keep the QR code or profile details.
- If the plan starts counting on install, follow the provider's terms and do not activate until you land.
- Set the eSIM as your data line and turn off data roaming on your home SIM to avoid charges.
- Download offline maps and a translation pack, ideally with Portuguese available.
- Save a backup plan for emergencies, such as a second profile or Wi-Fi at your lodging.
- Keep your passport handy only if you buy a local SIM instead.
Guinea-Bissau connectivity details travelers should know
Guinea-Bissau has two operators: Orange, a Sonatel subsidiary, and MTN, formerly Areeba or Spacetel and now under Telecel Group. A local SIM requires passport registration, and neither sells a consumer eSIM. There is no 5G.
No source we reviewed confirmed an IMEI registration requirement for visiting phones, and no verified blocking of WhatsApp or other voice apps turned up. That is a "no verified restriction found" result, not a guarantee, so test your calling apps on arrival.
The trade-off between the two options is straightforward. A travel eSIM is easier on arrival and avoids the closed airport kiosk. A local Guinea-Bissau travel SIM may offer more data per dollar, but you need to find a shop and register with your passport. In both cases, power cuts, the 2024 Orange outage and thin rural coverage mean you should plan for offline use.
Practical tips for staying online in Guinea-Bissau
- Install before flying. Evening arrivals at Osvaldo Vieira often find the SIM kiosks closed.
- Carry a power bank. Power cuts affect both your charging and the towers.
- Download offline maps for Bubaque, Cantanhez, Bafatá and Gabú.
- Expect signal to come and go on bush taxi journeys, especially the Gabú–Koundara route.
- Use Wi-Fi calling or voice apps, since a travel eSIM is data-only.
- For long trips, consider a second plan on the other network if your phone supports multiple eSIMs.
- Keep emergency contacts saved offline.
- Check that roaming is off on your home SIM.
Final takeaway: the best eSIM for Guinea-Bissau
eSIM Prime is the best overall choice for US travelers, mainly because you can install it before departure and skip the airport kiosk gamble. Orange is the better network for speed in Bissau, while MTN has the broader rural reach for the east. There is no 5G, and the Bijagós islands will have gaps whichever plan you choose.
Install at home, download offline maps and keep a backup for emergencies. Airalo, Maya Mobile, Ubigi, Saily, Holafly and Simbye are reasonable alternatives for specific budgets, network preferences or longer stays, as long as you verify current prices and plan terms before buying.
