Guinea-Bissau · roaming cost calculator
Guinea-Bissau Roaming Price Audit: $120 on AT&T, $129.05 on an eSIM
HelloRoam is the top pick for Guinea-Bissau on this site's rubric, though its 7-day unlimited plan there costs $95.36, at full speed for the first 2 GB a day, above the $84 a week on AT&T's $12-a-day pass, so for one week the day pass costs less, and Holafly ranks second on this site's rubric. HelloRoam refunds an unactivated eSIM for 180 days. Airalo covers 200+ destinations to HelloRoam's 185. HelloRoam's price is from its catalogue of 29 Oct 2026, rivals' from the 30 Oct 2026 price check; AT&T's rate was checked June 2026.
The Guinea-Bissau audit below runs in dollars because the carrier bills in dollars. HelloRoam prices checkout in 31 currencies, so a $129.05 purchase can be paid without a dollar conversion.
Guinea-Bissau eSIM data plans: allowances, prices, networks
Heavy data users in Guinea-Bissau can pick HelloRoam's unlimited plan: $95.36 for 7 days of unlimited data, at full speed for the first 2 GB each day.
Get eSIMHolafly's Guinea-Bissau plan runs on local 4G LTE towers with no data cap per day. For trips over five days, the per-day cost beats most per-GB alternatives.
Get eSIMNomad offers straightforward Guinea-Bissau plans on a local 4G LTE network from $2.30/GB. Simple checkout, no frills.
Get eSIMAiralo's app shows real-time data usage, so you can see how much of a Guinea-Bissau plan is left. Plans start at $2.40/GB on a local 4G LTE network.
Get eSIMSaily sells Guinea-Bissau data at $2.60/GB with VPN included. Travelers who regularly use public WiFi in cafes, hotels, or transit hubs avoid paying $13/month for a separate VPN subscription.
Get eSIMCompare providers: Airalo vs Holafly · Airalo vs Saily · Airalo vs Nomad · Airalo vs HelloRoam · Holafly vs Saily · Holafly vs Nomad · Holafly vs HelloRoam · Saily vs Nomad · Saily vs HelloRoam · Nomad vs HelloRoam
The full picture
Guinea-Bissau international day pass rates by carrier
Every major carrier's published Guinea-Bissau rate, side by side, with the eSIM winner highlighted.
| Carrier | Plan type | Daily | 7-day | Speed | Data limit |
|---|---|---|---|---|---|
| Vodafone | Roaming Passport | £6.85source | £47.95 | LTE | Fair-use |
| AT&T | International Day Pass | $12.00source | $84.00 | LTE | Plan data |
| Verizon | TravelPass | $12.00source | $84.00 | LTE | Plan data |
| eSIM · HelloRoam | 20GB data plan | — | $129.05 | 4G LTE | 20GB |
Compare all carrier roaming plans to see how AT&T, Verizon, T-Mobile, Vodafone, and EE stack up against eSIM providers.
Pay-per-use cost audit
What AT&T charges per activity in Guinea-Bissau — no day pass
Here is how the first morning in Guinea-Bissau plays out on AT&T pay-per-use (no plan active). You wake up, open Google Maps to find coffee nearby (~50 MB). You check email and a few attachments load (~5 MB). You scroll Instagram for 15 minutes while you wait (~20 MB). That totals 75 MB. At $2.05/MB, your first morning costs $154 before 9 AM. A 5-minute FaceTime call to confirm plans adds $154. By noon, after another hour of navigation, the bill reaches $410. These are AT&T's published pay-per-use charges. Source: AT&T rate card, June 2026.
Personalize your savings
Your Guinea-Bissau saving against $12 a day
Adjust the trip length, the carrier and the daily data below and the calculator reprices both sides. The starting point is the 10-day average stay recorded for Guinea-Bissau: $120 on an AT&T day pass at $12 a day, against $129.05 for a 20GB travel eSIM. Both prices buy access to the same local operators.
Network coverage
Guinea-Bissau carrier and network analysis
Guinea-Bissau has one mobile operator: Orange. AT&T, Verizon, and travel eSIM providers all route through a local network. There is no network variable to compare — only price. AT&T: $12/day. eSIM: $5.74/GB. Your phone's radio connects to a local network either way. The difference is which billing layer sits above that connection. The network technology on a local network in Guinea-Bissau is 4G LTE. AT&T roaming connects to that same 4G LTE signal. A travel eSIM connects to the same signal. No speed premium exists for roaming over eSIM.
Network attachment record
The networks behind both prices in Guinea-Bissau
HelloRoam publishes one local operator for Guinea-Bissau: Orange.
One operator means no fallback network.
Where Orange has no signal, an eSIM has nowhere else to attach.
HelloRoam records no 5G operator for Guinea-Bissau.
Carrier roaming meets the same ceiling, because roaming rents local networks.
Price is what separates the two options in Guinea-Bissau. This page prices both.
5G and 4G here are capability labels. Neither one is a speed reading.
Orange carry the eSIM in Guinea-Bissau. Across the whole file HelloRoam names 154 operators over 185 destinations, 117 of them with a single operator and 1.48 on average. Roaming buys wholesale access to that same list.
| Operator | Network generation on file |
|---|---|
| Orange | 4G |
Source: HelloRoam package feed, read 17 August 2026. The feed publishes an operator list for every destination it sells. No speed test sits behind this table, and we ran none. The full operator map covers 185 destinations.
Pricing breakdown
Guinea-Bissau trip data costs by carrier and eSIM
AT&T International Day Pass in Guinea-Bissau: 10 daily fees × $12 (AT&T's cap per bill cycle) = $120. eSIM 10GB plan on a local network: $57.40 for the same 14 days. Difference: $62.60 less than AT&T (52%). Verizon TravelPass reaches $168 over the same period.
Each day AT&T connects you to Orange GW in Guinea-Bissau costs $12. Buy a 10GB eSIM plan at $57.40 and that same daily access drops to $4.10/day. Over 14 days, the difference is $62.60.
eSIM pricing for Guinea-Bissau: 1GB at $7.74 ($7.74/GB), 3GB at $22.49 ($7.50/GB), 5GB at $28.68 ($5.74/GB), 10GB at $68.82 ($6.88/GB), 20GB at $129.05 ($6.45/GB). AT&T's 14-day roaming bill is $120 regardless of data consumed. Unlimited eSIM data costs $173.38 for the same period, $-53.38 less.
The unlimited ladder for Guinea-Bissau reads 1 day at $15.48, 3 days at $44.12, 7 days at $95.36, 14 days at $173.38, 30 days at $315.79. Unlimited here means 2GB a day at full speed before a fair-use policy applies. At 30 days the rate is $10.53 a day. Catalogue prices read 29 Oct 2026.
Trip cost breakdown
Guinea-Bissau data cost scenarios: short trip to long stay
Three common trip types to Guinea-Bissau and what each costs on AT&T vs a Orange GW eSIM:
Weekend city break (3 days, 2GB): AT&T $36 · eSIM $22.49 · saves $13.51 (38%) 2-week family vacation (14 days, 15GB): AT&T $120 · eSIM $129.05 · saves $-9.05 (-8%) 1-month digital nomad (30 days, 50GB): AT&T $120 · eSIM $301.25 · saves $-181.25 (-151%)
AT&T charges $12/day whether you use 50 MB or 5 GB that day. eSIM plans charge for a fixed data block purchased once. At no point in any of the three scenarios does carrier roaming cost less. Rates checked June 2026.
Airport options
Getting connected at Guinea-Bissau airports
Buying a SIM card at the airport in Guinea-Bissau means waiting in line after a long flight, handing over your passport, and paying a tourist-markup price. A 1GB eSIM at $7.74 installs in 2 minutes from the provider's app. It activates on a local network the moment you turn off airplane mode.
Data planning
Data costs for 7 days in Guinea-Bissau: carrier vs eSIM
One hour of video streaming consumes about 1 GB. Two hours/day of streaming in Guinea-Bissau uses 2 GB daily, more than 1.5 GB average usage. For a 7-day trip with occasional streaming, budget at least 11GB.
A 20GB eSIM costs $129.05 for 7 days. AT&T charges $84 for the same trip on the same local towers. For heavy data users, a 1-day unlimited plan costs $15.48, not under AT&T's $12/day pass.
Connectivity
Free WiFi spots and cellular data in Guinea-Bissau
WiFi infrastructure in Guinea-Bissau is concentrated in luxury hotels and a few urban areas. Outside those zones, an eSIM on a local network is often the only reliable data source at $5.74/GB.
Plan your data
Data usage guide on travel, Guinea-Bissau
Summer travel to Guinea-Bissau means peak hotel rates, peak airfare, and AT&T roaming at $12/day on top. A 10-day trip generates $120 in AT&T charges alone. A 20GB eSIM on a local network at $129.05 removes that line item — saving $-9.05 regardless of when you travel.
Guinea-Bissau has one mobile operator: Orange. US carriers pay Orange for roaming access and pass that cost to you at $12/day. An eSIM connects to Orange directly at $5.74/GB — no carrier markup.
Local prices in Guinea-Bissau are in XOF (CFA), but eSIM plans are priced in USD, eliminating exchange rate uncertainty on your data costs.
Quick reference
Guinea-Bissau Travel Essentials
112/119
112, 119 are the emergency numbers in Guinea-Bissau. Different numbers may route to different services — save all of them before your trip. Emergency calls work from any mobile device, including travel eSIMs.
Type C
Guinea-Bissau uses Type C outlets (European two round-prong). US plugs require a Type C adapter. Check that your phone and laptop chargers show 100-240V input — most modern chargers are compatible.
GMT (UTC+0)
XOF (CFA)
Cash in XOF is preferred across most of Guinea-Bissau outside major hotels and tourist centers. Card terminals are not common in local markets or small restaurants. Withdraw enough cash at a reliable ATM before leaving the city — rural areas may not have ATM access.
Quick tip
Prices in Guinea-Bissau are in XOF (CFA). Buying an eSIM in USD before departure removes the variable of exchange rates affecting your data cost mid-trip.
Good to know
Guinea-Bissau uses Type C power sockets. A dead phone means a dead eSIM connection — pack the right adapter to keep your device charged between venues.
Step by step
How to add a Guinea-Bissau eSIM to your phone
- Verify eSIM compatibility — any iPhone from 2018 or Samsung Galaxy S20 and later works on Guinea-Bissau's LTE network via Orange GW
- Go to HelloRoam, select the Guinea-Bissau 1GB plan at $7.74, and complete checkout — no physical SIM needed. Not sure which provider to pick? See our provider comparison.
- On iPhone: go to Settings > Cellular > Add eSIM > Use QR Code and scan the HelloRoam code before you leave home so it is ready to activate on arrival
- On Samsung Galaxy: go to Settings > Connections > Mobile Networks, select your home carrier SIM, and turn off Data Roaming. The step-by-step roaming guide has Android screenshots.
- On Google Pixel when you land in Guinea-Bissau: go to Settings > Network > SIMs and set the HelloRoam eSIM as the preferred data SIM — LTE on Orange GW confirms in seconds
- First-timer tip: set up WiFi Calling before your trip, not at the airport — some carriers require a verification step that needs a home network connection to complete
Data tips
Offline strategies and data tips for Guinea-Bissau
Posting to social media from Guinea-Bissau uses more data than browsing. Uploading one photo to Instagram uses about 3-5 MB. A 60-second video upload uses 30-100 MB depending on resolution. Set your camera to 1080p rather than 4K to cut video upload size by 75%.
Regional context
Africa roaming rates and how Guinea-Bissau fits in
A few things to know before turning off carrier roaming in Guinea-Bissau:
Very limited mobile infrastructure
Nearby
Related destinations
6 destinations near Guinea-Bissau are priced on the same rate card. AT&T bills $12 a day in every one of them, and the figure beside each flag is that destination's own per-gigabyte floor. The cheapest of the group is Algeria at $1.23 a gigabyte.
Forgot your eSIM?
Last-minute eSIM options for Guinea-Bissau arrivals
Forgot to buy an eSIM before flying to Guinea-Bissau? Three options, ranked by total cost.
Option 1 — Airport WiFi install ($7.74 total): The arrivals area has free WiFi. All 5 providers (HelloRoam, Holafly, Nomad, Airalo, and Saily) support post-arrival purchase over WiFi. Buy a 1GB plan for $7.74. No extra charge beyond the plan.
Option 2 — Hotel lobby WiFi install ($7.74 total): If airport WiFi failed, hotel lobby WiFi works just as well. Check in, get the password, complete the eSIM install. Same $7.74 cost.
Option 3 — Emergency carrier download ($10 + $7.74 total): Use ~5 MB of AT&T pay-per-use data to download the provider app ($10). Install the eSIM over the app, then disable carrier data. Total cost: $17.74.
Savings math
How much you save in Guinea-Bissau
Solo traveler
Break-even point for a solo Guinea-Bissau trip: day one. AT&T charges $12 for the first 24 hours. A 20GB eSIM at $129.05 is already cheaper than two AT&T days. By day 10, the eSIM has saved $0 total. There is no trip length at which AT&T roaming costs less than a travel eSIM for Guinea-Bissau.
Family trip
Verizon TravelPass charges per line, not per account. A family of four pays $48/day ($12 x 4 lines). Over 10 days in Guinea-Bissau: $480. Four eSIMs at $129.05 each: $516.20. Per-person savings: $-9.05. All eight data connections (4 carrier, 4 eSIM) route through local 4G LTE towers.
AT&T roaming rate analysis
Checking voicemail on AT&T in Guinea-Bissau is treated as an inbound international call. That call starts a $12 Day Pass fee covering the next 24 hours, even if you did not plan to use data. A single voicemail check at 5 AM on your last morning adds $12 to your bill. Weekly AT&T cost: $84. Monthly: $120. A 20GB eSIM: $129.05 for 10 days on a local network. The eSIM does not charge for background triggers.
All-carrier summary
AT&T: AT&T International Day Pass costs -7% more than an eSIM for Guinea-Bissau.
Verizon: Verizon TravelPass costs less than this eSIM plan for Guinea-Bissau.
T-Mobile: T-Mobile's International Passes cost less than this eSIM plan for Guinea-Bissau.
Vodafone: Vodafone bills Guinea-Bissau in pounds and this site holds no pound-to-dollar rate, so it states no Vodafone-versus-eSIM gap.
Against AT&T: $0 saved (0%). Against Verizon: $0 saved. Against T-Mobile's International Pass at $10/day: $0 saved. Against T-Mobile free tier: $0 carrier cost, but the throttle renders maps, ride-hailing, and video calls unusable. A 20GB eSIM at $129.05 delivers full 4G LTE on a local network for less than any paid roaming option.
Quick answers
Common questions about Guinea-Bissau data costs
Is eSIM cheaper than roaming in Guinea-Bissau?
Carrier roaming in Guinea-Bissau costs $120 on AT&T ($12/day for 10 days). An eSIM plan on a local network costs $129.05 for 20GB. Both connect to the same 4G LTE cell towers. The eSIM is cheaper by $0, a 0% reduction. Rates checked June 2026.
How much does roaming cost in Guinea-Bissau?
Roaming in Guinea-Bissau costs $12/day on AT&T ($120 for 10 days), $12/day on Verizon ($120), and $50 on T-Mobile's International Passes (10-day pass). A travel eSIM on a local network costs $129.05 for 20GB. Rates checked June 2026.
Does T-Mobile work in Guinea-Bissau?
Yes, T-Mobile connects to a local network in Guinea-Bissau. T-Mobile's Experience More plan includes 5GB of high-speed data abroad and Experience Beyond 15GB, then data runs at up to 256Kbps. Essentials includes texting but no data. The 1 Day International Pass costs $10. A travel eSIM at $129.05 for 20GB provides full 4G LTE speed on the same local towers. Rates checked June 2026.
AT&T fine print for Guinea-Bissau
$12 covers 24 hours from the first time your phone uses a foreign network, and a single background push notification at 2 AM can start it. AT&T bills at most 10 daily fees per line each bill cycle (terms read 31 Oct 2026).
iCloud Photos, email push, app updates all trigger the daily charge. A phone left in a bag with data roaming on starts a new $12 fee each time a sync lands after the last 24 hours ran out.
Guinea-Bissau FAQ
Guinea-Bissau eSIM & roaming questions
Guinea-Bissau carrier roaming costs $12 a day on AT&T and on Verizon
AT&T bills $12 a day for the first line and $6 for each extra line, so a family of four in Guinea-Bissau pays $30 a day, or $210 across a week. Verizon charges the full $12 on each line. T-Mobile's Experience plans include 5GB or 15GB of high-speed data abroad per line, then at a reduced speed. Travel eSIM plans are per device and do not share, so four phones means four plans from $7.74 for 1GB each, or one plan tethered to the rest. Holafly caps hotspot use at 1 GB per day on most plans, so a family leaning on tethering should buy fixed data instead. Rates checked June 2026.
T-Mobile's included data in Guinea-Bissau runs at high speed until the allowance ends
Only until the allowance runs out. T-Mobile's Experience More plan includes 5GB of high-speed data abroad and Experience Beyond 15GB, then data runs at up to 256Kbps. Essentials includes texting but no data. At 256Kbps text messaging works and maps slow down. T-Mobile's 1 Day International Pass costs $10 for 2GB, and its 10-day pass $50 for 15GB. Five eSIM providers deliver full 4G LTE on a local network instead, from $5.74/GB. Carrier rates checked June 2026; eSIM prices from the 30 Oct 2026 price check.
Guinea-Bissau roaming bills by the day, not by the gigabyte
At 3 days in Guinea-Bissau: AT&T costs $36, eSIM costs 1GB for $7.74. At 7 days: AT&T $84, eSIM same 1GB for $7.74. At 14 days: AT&T $120, eSIM same fixed rate. The eSIM billing model is flat: the longer the trip, the wider the gap. T-Mobile's included data costs nothing extra until its 5GB or 15GB allowance runs out, then runs at up to 256Kbps.
Carrier roaming beats an eSIM in Guinea-Bissau on one-day stops and voice-only trips
Three cases, and they are real. First, T-Mobile does not charge for data in Mexico and Canada up to its plan's high-speed allowance, and nothing priced here beats free. Second, if you need your own number live for calls and texts without WiFi, a day pass does that and a data-only travel eSIM does not. Third, if you use almost no data, one AT&T day at $12 can beat buying a whole plan for a single overnight stop. Outside those three the arithmetic favors the eSIM in Guinea-Bissau: $84 for a week on AT&T against $60.27 at $5.74/GB on Orange GW. Rates checked June 2026.
A 3-day Guinea-Bissau trip costs $36 on AT&T roaming
Yes. AT&T charges $12/day, so International Day Pass for 3 days costs $36. Verizon TravelPass costs $12/day, $36. A travel eSIM on Orange GW for a 3-day trip at 1.5 GB/day average costs roughly $25.83 — often covered by a 3 GB plan. The breakeven is day one: a single day of eSIM data costs less than one AT&T day pass in Guinea-Bissau. The only exception: T-Mobile does not charge for data in Mexico and Canada, up to its plan's high-speed allowance. Rates checked June 2026.
US carriers reach Guinea-Bissau through its local operators
AT&T covers Guinea-Bissau at $12/day. Verizon covers most African countries at $12/day. T-Mobile includes 5GB or 15GB of high-speed data included on its Experience plans, then up to 256Kbps in Guinea-Bissau. A travel eSIM on Orange GW provides full 4G LTE speeds at $5.74/GB — the same carrier infrastructure as roaming, at a fraction of the cost.
Guinea-Bissau mobile data carries the same load for an eSIM and for roaming
Guinea-Bissau has 1 carrier providing 4G LTE coverage. Urban and tourist areas have solid coverage; rural regions may have gaps. A travel eSIM connects to the same local networks carrier roaming uses, at $5.74/GB. Coverage quality is whatever the local network delivers, and it is the same either way.
A 10-day Guinea-Bissau trip costs $120 in carrier roaming
AT&T International Day Pass for 10 days at $12/day: $120. Verizon TravelPass at $12/day: $120. T-Mobile's International Pass at $10/day: $50. A travel eSIM on Orange GW at $5.74/GB for 10 days at 1.5 GB/day average costs roughly $86.10. The eSIM saves over 80% versus any carrier's paid roaming option. Rates checked June 2026.
Rural Guinea-Bissau coverage is an operator limit, not a roaming limit
Both carrier roaming and travel eSIMs connect through local networks in Guinea-Bissau, and Orange GW is one of them. Coverage outside major cities depends on how widely those networks have deployed, and the same gaps hit an eSIM and AT&T or Verizon roaming alike. Urban centers and tourist corridors have consistent signal; rural and off-road areas may have limited or no service. There is no coverage advantage to choosing carrier roaming over an eSIM.
A week of Guinea-Bissau carrier roaming costs $84
AT&T: $84/week (International Day Pass at $12/day). Verizon: $84/week (TravelPass). T-Mobile: 5GB or 15GB of high-speed data included on its Experience plans, then up to 256Kbps, or $50 for a week of passes (10-day pass). The cheapest eSIM for Guinea-Bissau starts at $5.74/GB on a local 4G LTE network — better per-GB value than all three carriers.
Fact check
Common myths about roaming and eSIM in Guinea-Bissau
Carrier roaming is more reliable than an eSIM
Reliability is determined by the local carrier's network, not the billing layer above it. AT&T roaming in Guinea-Bissau routes through a local network. A travel eSIM also routes through a local network. Both connections depend on local network coverage in any given area. AT&T charges $12/day for a connection with zero reliability advantage over the $7.74 eSIM.
Pay-per-use international data rates are reasonable
AT&T's pay-per-use international data rate is $2.05/MB without an active plan. At that rate, 1 GB costs $2,099. A single Google Maps navigation session in Guinea-Bissau loads 50–100 MB — that is $102–$205 at pay-per-use. A 1GB eSIM on a local network costs $7.74 for the same data. Always activate a day pass or eSIM before your flight. Rates checked June 2026.
T-Mobile includes free international data
T-Mobile's Experience plans include 5GB or 15GB of high-speed data abroad, then up to 256Kbps, too slow to load a map tile in Guinea-Bissau past the allowance. Its 1 Day International Pass costs $10. Exception: T-Mobile does not charge for calls, texts or data in Mexico and Canada; depending on the plan, up to 30GB is at high speed, then up to 256Kbps. Guinea-Bissau is not on that list. Rates checked June 2026.
Our recommendation
Guinea-Bissau eSIM recommendation
HelloRoam vs the alternatives for Guinea-Bissau: HelloRoam: HelloRoam covers Guinea-Bissau on a local network and scores 9.9/10 on our rubric, the highest of the 5 providers we price. A 1GB plan costs $7.74. Unactivated plans are refundable for 180 days, and its support replies in your own language. Holafly is the alternative for heavy data users: it states no daily cap, at a 7-day unlimited median of $27.50 on 30 Oct 2026.
Learn more
Travel guides, Guinea-Bissau
4 guides carry the parts of a Guinea-Bissau trip this page does not price: installing the profile before departure, switching data roaming off on the home SIM, and what happens to the allowance once a fair-use policy applies. Each one reads the same rate card as this page, where AT&T bills $12 a day.
Compare Guinea-Bissau eSIM plans vs carrier roaming rates
Install an eSIM before you fly. It activates when you land in Guinea-Bissau.
Get a Guinea-Bissau eSIM