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, and network coverage can be patchy in rural parts of Zanzibar.
Some travel esim options also cover mainland Tanzania as well as Zanzibar; for example, Revolut eSIM provides coverage throughout Tanzania, including Zanzibar.
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 Plans vs Buying a SIM Card 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. With an eSIM, you install it once, set it up in minutes, and activate service before you land, so there’s no queueing at the airport or finding a phone shop. It’s easy to purchase a data plan before your trip, then select the eSIM in your phone settings and choose it for mobile data when you arrive.
Since your Tanzania eSIM covers both the mainland and Zanzibar on the same plan, there's no need to swap a physical sim card or remove your regular sim card if you're combining a safari with a beach stay. Some providers also let you top up a data plan in-app anytime.
What to Use Unlimited 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, and a hotspot can help connect a laptop or second device while working from cafés or hotels. For longer workdays online, unlimited data plans are available for Zanzibar travel.
Social media
Fast enough for Instagram and video uploads. Best from beach resorts with good 4G. Unlimited data cuts the need for top-ups and helps ensure reliable internet access while traveling.
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, choose the Africa regional eSIM for multiple destinations on one plan across local networks. Some providers offer one eSIM for 200+ destinations, which is useful if Zanzibar is only one stop on a broader itinerary. Some of those options also include unlimited data plans, whether you need coverage for a week or a month.
Tanzania eSIM PlansInternet in Tanzania & SerengetiKenya Safari Connectivity GuideBest Apps for Safari & BeachHow 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. Ye-sim also offers 24/7 support, with an average response time of 5 minutes.
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, making it a good travel eSIM option for instant setup. If you prefer unlimited data, providers such as Holafly offer unlimited data eSIM plans for Zanzibar.
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 is still the simplest choice, but depending on your needs, you can choose either a Tanzania eSIM or a local SIM since both cover the entire country, including Zanzibar island.
Heading to Zanzibar? How to Stay Connected
Tanzania eSIM covers Zanzibar + mainland safari on one plan. From $2.49/day, instant QR code delivery.
Get Tanzania eSIM to buy and activate before departure, whether you're staying a week or a month.