We traveled in Guinea-Bissau for 12 days in March/April 2025. This is how we got a SIM card in Guinea-Bissau to stay connected and work online from Cacheu, Bissau, and Bubaque Which SIM Card in Guinea-Bissau is Best? Orange. In Guinea-Bissau, the telecom infrastructure is still in its infancy. Orange has the best coverage in the country, but it’s still not reliably great, even in towns. However, when it’s good, it’s great, with 4G or 4G+. However, SIM card shops might not be open when you arrive on a weekend or a holiday, so it’s more important that you takeContinue reading