Tanzania eSIM for the Serengeti, Kilimanjaro, and Zanzibar

Tanzania is a safari where the phone is a camera, a mountain where it is a clock, and an island where it books the dhow, and the arrivals halls at Kilimanjaro, Dar es Salaam, and Zanzibar are the places to have it working. The best eSIM for Tanzania is the one added at home, on Wi-Fi, so the lodge's driver is found and the e-visa is on the phone before the immigration queue moves.

Below: how a Tanzania plan works, how to set it up before you fly, what to expect on the northern circuit, on the mountain, and on Zanzibar, and which of two regional plans fits when Kenya or Rwanda is on the same trip.

African itineraries change, and most travel eSIMs make you start over every time they do. KnowRoaming doesn't. You add the KnowRoaming eSIM, called KR.One, to your phone once, then add a plan per trip: one country when you're staying put, the Africa plan when the route crosses borders, and whatever comes next after that. Nothing to scan again, nothing to delete when you get home.

The plan's days start when you turn it on and connect in Tanzania, not at checkout. Buy it weeks ahead, add it at home, and a delayed flight costs you nothing. The full rule is in what plan validity means and when it starts.

Choose a fixed plan for a set amount of data at the lowest overall price, or an unlimited plan when you'd rather not count. Unlimited plans give you 5 GB a day at full speed, then a slower speed until the allowance resets the next day. If a fixed plan runs low, top up in the app and the extra data lands on the same eSIM.

See it in two minutes: Meet KR.One, iPhone setup with KR.One, or Samsung setup with KR.One.

Do this at home on Wi-Fi. It takes about a minute.

Before you leave

1. Get the KnowRoaming app (available on iOS and Android) and choose your Tanzania plan.
2. Tap Add. First time on this phone? The app adds KR.One and your Tanzania plan together. Already have KR.One? Only the plan is added, with nothing to scan.
3. Leave data roaming off on the KnowRoaming line until you land, and turn it off on your home line too so it doesn't run up charges in the background. Steps are in turning off roaming on your home line.

When you land

1. Turn the plan on in the app, then turn data roaming on for the KnowRoaming line. That setting lives in your phone, so the app can't flip it for you.
2. Give the phone a minute to find the network. If nothing happens, turn airplane mode on for 30 seconds and off again.

Prefer a QR code? The checkout page and your confirmation email both carry one; scan it from your phone's settings. Every tap, by device, is in adding your eSIM on iPhone, adding your eSIM on Android, and adding your eSIM on Samsung, or watch the iPhone QR walkthrough or the Samsung QR walkthrough. Still no signal after landing? Work through the no-signal checklist.

Kilimanjaro International is an hour from Arusha and Moshi, the safari and mountain bases; Julius Nyerere at Dar es Salaam is the business gateway, and Zanzibar's airport is about 15 minutes from Stone Town. Lodge and hotel drivers meet the flights, Bolt and Uber run in Dar and Arusha with the number you already have, and the e-visa is arranged online before the flight. The shilling is the currency, cards work in the lodges and the city hotels, and cash covers the rest; mobile money needs a local number.

The Dar to Zanzibar fast ferry takes two hours and is booked online; the flights between the three airports are short hops on the local carriers' apps.

Arusha's coffee estates, the Cultural Heritage centre, and the Maasai market, and Moshi's view of the mountain on a clear morning, are the days before and after; the ATMs in both towns take foreign cards, and the shilling is best drawn there before the circuit.

The Serengeti's migration, the Ngorongoro crater, Tarangire's elephants, and Lake Manyara are the northern circuit, a week by 4x4 from Arusha with the lodges confirming by WhatsApp; the gates have signal, the plains mostly don't, on any network, and the lodges' Wi-Fi reaches the bar. Yas's 4G covers Arusha, Moshi, and Karatu; download maps and bookings before the circuit and treat game-drive days as offline.

The climb, six to nine days by the Machame, Lemosho, or Marangu routes, is booked with a licensed operator months ahead, and the mountain has signal at the lower camps on some routes and none above them; the guides carry radios and satellite devices, and the summit night is offline. Moshi has 4G; charge everything in town and carry a power bank and a solar charger for the camps.

Stone Town's alleys, the spice farms, Nungwi and Kendwa's beaches in the north, and Paje's kitesurfing in the east are Zanzibar, with 4G in Stone Town and the resort coasts and thinner coverage on the far beaches and the dhow trips; Pemba's diving and Mafia's whale sharks are the quieter islands, offline beyond the lodges. The Dar coast's Bagamoyo and the southern parks at Nyerere and Ruaha are the road less taken.

Tanzania is on two multi-country plans: the East Africa plan, four countries with Kenya, Uganda, and Rwanda, which covers the Serengeti to Mara crossing at Isebania or Namanga and the gorilla add-on; and the Africa plan, 31 countries, for a route that continues south to Malawi, Zambia, or Mozambique. Tanzania is not on the Global plan. A Tanzania-only plan stops at the border. Read do I need a new plan for every country? for the detail.

Your plan connects to Yas, the network formerly known as Tigo, on 4G LTE. There is no 5G on this plan. Coverage is strong in Dar es Salaam, Arusha, Moshi, Mwanza, Dodoma, and Stone Town and holds along the main roads and the resort coasts. Your phone picks the network automatically once the plan is on; there is nothing to choose by hand.

In the parks, on Kilimanjaro above the lower camps, on the dhows, and on the outer islands, expect no signal on any network. Save what you need in town.

Most phones sold since 2019 support eSIM, including iPhone XS and later and most Android flagships from the same window. Check yours before you add a plan; it takes a few seconds. On iPhone, go to Settings, General, About and look for an EID or Available SIM. On Android, go to Settings, Network & Internet, SIMs and look for an option to add an eSIM. On Samsung, dial *#06# and look for an EID.

Your phone also needs to be carrier-unlocked. If you're not sure, carrier-locked vs unlocked: how to tell shows you where to look.

Adding a Tanzania plan doesn't touch your regular SIM. Calls and texts on your usual number keep working exactly as before. The new plan handles data while you're there, and most phones run both at once without you doing anything else. Bank codes and two-factor texts still arrive on your home number, as long as that line stays switched on.

For Africa the alternatives are a home-carrier roaming rate that is often not offered at all, a local SIM in each country with registration paperwork at each border, or lodge Wi-Fi that works in the bar and nowhere else. A Tanzania plan added at home beats all three: one price agreed before you fly, live the second you land, and one plan across every border on the route.

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