The best eSIM for Guinea-Bissau depends on how much data you need, but for a typical trip eSIM Ahora offers plans from $7.68, activated by QR code in about 30 seconds with no roaming from your home carrier. A 3 GB, 30-day plan costs $21.94. You connect, with top-ups available and nationwide coverage. Compatible with iPhone XS or newer, Samsung Galaxy S21+ and Google Pixel 3+.
Full-speed data every day; after the daily cap the speed is reduced.
Full speed up to 500 MB/day, then 512 Kbps.
Every eSIM can be installed within 180 days of purchase. Plan validity starts when you first connect.
Your eSIM picks between these networks on its own. If you see bars and nothing loads, you can pick one by hand.
Your Guinea-Bissau eSIM runs on one network: Orange. Other local networks won't carry your data: if you see signal bars and nothing loads, turn off automatic network selection (iPhone: Settings → Cellular → your eSIM → Network Selection; Android: Settings → Network & internet → SIMs → your eSIM) and pick Orange by hand.
MTN Guinea-Bissau and Orange Bissau are the main operators in this small Lusophone country. 4G coverage in Bissau (capital), Bafatá, Gabú and coastal zones. The Bijagós archipelago (88 islands, UNESCO) has basic coverage on Bubaque (main island) and inhabited islands; small remote islands mostly offline. Forested interior and Senegal/Guinea border zones have limited coverage. Orange typically has better nationwide coverage. No 5G. One of West Africa's most underdeveloped telecom markets. Type C French plugs, 220V/50Hz.
Fly into Bissau-Osvaldo Vieira (OXB) — limited flights, connections via Dakar (Senegal) or Lisbon. Currency West African CFA franc (XOF), ~625 XOF per USD (fixed peg euro). Dinner 5-12 USD, mid-range hotel 50-100 USD. Portuguese-colonial Bissau (Praça do Império, Fortaleza), Bafatá (Amílcar Cabral). Bijagós archipelago is the top nature draw — turtles, marine hippos, matrilineal culture. Visa required. Portuguese (official) and Crioulo; some French via Senegalese proximity. Cash only. Historic political instability — check advisories.