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eSIM for Tanzania

Data for Kilimanjaro, the Serengeti, Ngorongoro and Zanzibar, installed before you fly. Tanzania is on the Africa plan with Kenya, so a safari that starts in the Mara and ends on a Zanzibar beach runs on one eSIM. Only the wildebeest cross that border more often.

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The Tanzania plan covers Tanzania only.

1 GB7 days5.99€$6.79£5.19CHF 5.693 GB14 days15.99€$18.99£13.99CHF 15.99Best value5 GB30 days25.99€$29.99£22.99CHF 24.99
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Also on the Africa plan

32 other countries share the package with Tanzania. A few of them:

Good to know

What's included, when it starts, and how to get connected.

Included countries
The Tanzania plan covers Tanzania only.
Local networks
In Tanzania your eSIM connects to Airtel and Vodacom — 4G/5G where the network offers it.
When validity starts
Your package starts when your phone first connects to a network at the destination — not when you install it. Crossing a border does not restart it.
Installation and activation
Install the eSIM while you still have internet — at home or on Wi-Fi. Installation does not start validity. If you already have a onesim eSIM installed, a new package is added to it — no second installation. Setup guide
Calls and texts
onesim is data-only. Calls and messages work over data in apps like WhatsApp or FaceTime; your usual SIM keeps your number.
Support and refunds
Message the onesim support team from the app or the website. If a package cannot be installed or used, the refund policy explains what applies. Refund policy
Route idea

Two weeks: the northern parks, then the beach.

Most first trips follow the same arc: land near Kilimanjaro, drive the northern parks, then fly to Zanzibar and do very little. Distances are long and small planes do a lot of the work. The line below is an illustration, not a map.

A baobab tree on the grass in Tarangire National Park1

Arusha and Tarangire · Days 1–3

Land at Kilimanjaro International, between Moshi and Arusha; climbers add a week on the mountain first. Arusha is where safaris start, and Tarangire, under two hours away on a paved road, is baobabs and elephants, with the biggest herds in the dry months from June to November.

Wildebeest crossing the Mara River in the northern Serengeti2

Ngorongoro and the Serengeti · Days 4–9

Half a day on the floor of the Ngorongoro crater, where each vehicle pays its own fee to go down, then the long drive onto the plains. The month decides where to be: calving in the south from about January to March, when some 500,000 calves arrive within a few weeks, and the river crossings in the north from July.

Rippled white sand and shallow water at low tide in Paje, Zanzibar3

Zanzibar · Days 10–14

A short flight from Arusha or a Serengeti airstrip, or the ferry from Dar es Salaam, with passports out again on arrival. A night or two in Stone Town, then the east coast, where the tide goes out a long way twice a day. Buy the island’s visitor insurance before you fly.

How the plan fits this route

One package from the first airport to the last beach: the same allowance in Arusha, at the lodges and on Zanzibar. Away from the main areas the parks are offline for long stretches on any network, so download maps and bookings in Arusha. Kenya is on the same plan, so a trip that starts in Nairobi or ends in the Mara needs nothing else.

Travel notes

Pole pole, and other things worth knowing.

Boats moored off the seafront of Stone Town, Zanzibar
Entry

Visa first, then insurance, and from October 2026 on the mainland too.

Most visitors need a visa: US$50 on visa.immigration.go.tz, or US$100 for the one-year multiple-entry visa US citizens must buy; visas on arrival still exist. Zanzibar has required its own US$44 visitor insurance since October 2024, scanned on arrival. From 1 October 2026 the mainland wants a US$44 policy too, from its national insurer. Doing both? Check whether one policy covers the whole trip.

Money

Prices are in shillings now, by law.

Since March 2025 the Bank of Tanzania has required prices to be quoted and paid in Tanzanian shillings, and it tells visitors to change money at banks and bureaux or to pay by card; refusing shillings is an offence. The exception visitors meet most is the parks: their fees are still set in dollars and paid electronically, by card or mobile money.

Hot take

Kilimanjaro is the one of the Seven Summits you can walk up. The altitude is the catch.

At 5,895 metres it is Africa’s highest mountain and the world’s tallest free-standing one, and the standard routes are a long, steep walk rather than a climb. The thin air is what turns people back: in a study of 1,237 hikers, taking more days predicted reaching the top. The record from gate to summit is under five hours. Go pole pole, slowly, and take seven days.

Pop culture

Freddie Mercury was born in Stone Town.

Farrokh Bulsara was born in Zanzibar on 5 September 1946, went to boarding school in India at eight and came back to the island as a teenager, before his family moved to England in 1964. A small museum now fills a Stone Town house the family once lived in. In 2024 a 110 km crater on the planet Mercury was named Bulsara.

Hot take

The Rock is a lunch table with a tide timetable.

The restaurant on a rock off Michamvi Pingwe has been open since 2011 and books like a concert: a US$10 deposit per person, two-hour sittings, and a table that goes to the queue ten minutes after your slot. You walk across the sand at low tide and take the boat at high tide. Go for the setting; for dinner, Forodhani Gardens in Stone Town grills seafood every evening.

Tanzania questions.

Answers about data, coverage and setup for Tanzania.

Sometimes, and never enough to plan around. The signal comes and goes with the route, the altitude and the weather, and summit night is not the time to rely on it. Keep the phone in an inside pocket, since cold drains batteries fast, and carry a power bank. The package’s days keep counting while you climb, so buy a length that covers the whole trip.

Still unsure?Ask us