🇹🇿 Zanzibar Zanzibar has full 4G coverage across the island. Here's everything you need to stay connected — from Stone Town to Nungwi beach, without queuing for a local SIM. May 24, 2026 • 6 min read Mobile Coverage in Zanzibar Zanzibar (Unguja island) has excellent mobile infrastructure. Vodacom and Airtel both provide 4G across Stone Town, the northern beaches (Nungwi, Kendwa), the east coast (Paje, Jambiani), and the south (Kizimkazi). Remote forest areas in the interior may have 3G. Area Signal Notes Stone Town 4G Excellent — fast city-level speeds Nungwi Beach 4G Full coverage at all resorts Kendwa 4G Strong throughout Paje (east coast) 4G Good coverage, fast speeds Jambiani 3G/4G Reliable, some 4G Kizimkazi (south) 3G/4G Dolphin tour area, good coverage Jozani Forest 3G Interior, weaker signal Pemba Island 3G/4G Less dense but workable eSIM vs Buying a SIM in Zanzibar Zanzibar has Vodacom and Airtel shops in Stone Town where you can buy a physical SIM. However, biometric registration (fingerprints + passport) is required. An eSIM is active before you land — no queueing at the airport or finding a phone shop. Since your Tanzania eSIM covers both the mainland and Zanzibar on the same plan, there's no need to buy a separate SIM if you're combining a safari with a beach stay. What to Use Data For in Zanzibar Navigation Google Maps works great. Download Zanzibar offline before arriving for no-data backup. Booking activities Arrange snorkeling, Prison Island trips, and spice tours via WhatsApp — common among local operators. Remote work Zanzibar 4G is fast enough for Zoom and Slack. Many beach cafés also offer WiFi. Social media Fast enough for Instagram and video uploads. Best from beach resorts with good 4G. Combining Tanzania Safari + Zanzibar Most visitors pair a northern circuit safari (Serengeti, Ngorongoro) with a Zanzibar beach stay. One Tanzania eSIM plan covers both — no need to swap or buy a second SIM when you fly from Arusha to Zanzibar. If you're also visiting Kenya, check the Africa regional eSIM which covers multiple countries on one plan. Related Guides Tanzania eSIM Plans Internet in Tanzania & Serengeti Kenya Safari Connectivity Guide Best Apps for Safari & Beach How Much Data Do You Need? Africa Multi-Country eSIM Frequently Asked Questions Does eSIM work in Zanzibar? Yes. Zanzibar has excellent 4G coverage on Vodacom and Airtel across Stone Town and all beach areas. Safari eSIM Tanzania covers Zanzibar on the same plan. What SIM is best for Zanzibar? A Tanzania eSIM is the easiest option — no biometric registration, instant activation, and it covers both the mainland and Zanzibar island. Is internet fast in Zanzibar? Yes — 4G speeds of 15–50 Mbps are typical in Stone Town and beach resorts. Fast enough for streaming, video calls, and uploads. Do I need a separate SIM for Zanzibar if I have one for Tanzania? No. A Tanzania eSIM or physical SIM covers the entire country including Zanzibar island. Heading to Zanzibar? Tanzania eSIM covers Zanzibar + mainland safari on one plan. From $2.49/day, instant QR code delivery. Get Tanzania eSIM