Guides
Before you fly
Short, specific answers to the questions travellers actually ask about eSIMs. No filler.
Setup, planning and troubleshooting
9 min read
AT&T International Day Pass vs eSIM: the break-even by trip length, including extra lines
AT&T's International Day Pass over 3 to 30 days, with the 10-day cap and $6 extra lines, compared with a travel eSIM, plus the iPhone settings that avoid charges.
8 min read
How to avoid roaming charges on iPhone: the exact settings, and what US day passes cost
Which iPhone settings stop your home carrier billing you abroad, what actually triggers a roaming charge, and what AT&T, Verizon and T-Mobile charge as of September 2026.
7 min read
Can you reuse a travel eSIM? Deleting, keeping and moving it to a new iPhone
When a travel eSIM can be used again on your next trip, why deleting one is permanent, how to tidy up expired eSIMs, and what to do before moving to a new iPhone.
8 min read
Should data roaming be on or off with an eSIM? On for the travel eSIM, off for your home line
Why a travel eSIM needs Data Roaming on and your home line needs it off, the exact iPhone settings, why the eSIM shows as roaming, and costly mistakes.
8 min read
Dual SIM on iPhone for travel: how your home line and travel eSIM share the work
How two lines work on one iPhone abroad — default voice line, cellular data line, iMessage and FaceTime, labels, and why Allow Cellular Data Switching should be off while you travel.
8 min read
eSIM glossary: ICCID, EID, APN, SM-DP+ and other terms explained
Plain-English definitions of the terms you meet when buying and installing a travel eSIM — ICCID, EID, APN, SM-DP+, activation code, profile, data roaming, top-up, validity, throttling, carrier lock and more.
8 min read
Can you use a travel eSIM as a hotspot? Tethering a laptop or tablet abroad
How to share a travel eSIM's data with a laptop or tablet using iPhone Personal Hotspot, how much data it really uses, how to stop a laptop eating your plan, and what to do when the hotspot option is greyed out.
9 min read
eSIM not working abroad? A troubleshooting checklist for iPhone
No signal, "No Service", or bars but no internet. The checks to run in order, from the two settings that fix most cases to APNs, network selection and PDP authentication failure.
8 min read
Using an eSIM on a cruise or a plane: what works at sea, in the air and in port
Travel eSIMs work in port but not on a ship's own network at sea or on a plane's onboard network. How maritime roaming charges happen, what to use instead, and how to set up an eSIM for port days and landing.
9 min read
eSIM vs physical SIM: which is better, and when the plastic card still wins
eSIM and physical SIM compared on security, switching phones, travel, dual SIM, loss and setup, which iPhones have no SIM tray, and a verdict for each type of user.
7 min read
Travel eSIM vs roaming vs a local SIM: which is cheaper?
What roaming passes, local SIMs, travel eSIMs and pocket Wi-Fi really cost in money and hassle, with a worked 10-day example using real prices, and when a travel eSIM is the wrong choice.
9 min read
How much data do you need for a trip?
How to size a travel eSIM. What maps, messaging, social video and streaming actually use, worked examples for five kinds of trip, a plan-size table, and how to measure your own usage on iPhone.
8 min read
How to choose a travel eSIM: a 12-point buyer's checklist
What to compare before buying a travel eSIM — price per GB, validity rules, when the plan starts, top-ups, 5G, hotspot, coverage lists, currency, refunds and support. Written to apply to any provider.
8 min read
How to install a travel eSIM on iPhone before you fly
The whole setup, start to finish. Check your iPhone is unlocked, install the eSIM on home Wi-Fi (one tap, QR code or manual entry), choose the right line settings, fix a failed install, and remove it after the trip.
9 min read
Travelling with an eSIM-only iPhone: what changes abroad with an iPhone 17 or iPhone Air
What changes when your iPhone 17 or iPhone Air has no SIM tray: local SIMs, China and Hong Kong, iOS 26 travel eSIM prompts, Quick Transfer and a checklist.
10 min read
Is an eSIM safe? What can and can't be hacked, and how to protect yours
How secure an eSIM really is, why SIM-swap fraud targets your carrier account, why eSIM QR codes are secrets, and what a travel eSIM provider can see.
9 min read
Is Wi-Fi Calling free internationally? What eight carriers charge, and the airplane mode trick
Whether Wi-Fi Calling is free abroad on Verizon, AT&T, T-Mobile, EE, Vodafone, Three, Telstra and Optus, the airplane mode trick, and use with a data eSIM.
8 min read
Keeping your number, WhatsApp and bank codes working abroad with a travel eSIM
How to keep receiving SMS verification codes from your bank while abroad, why WhatsApp and iMessage keep your number on a data-only eSIM, and what to set up before you fly.
7 min read
Pocket Wi-Fi vs eSIM: which is better for travel?
A rented pocket Wi-Fi router against a travel eSIM on your phone — cost, battery, group sharing, pickup and return, and the situations where each one makes more sense.
7 min read
Regional vs country eSIM: one plan for several countries, or one per country?
When a regional eSIM for Europe or Asia beats buying separate country plans, when it doesn't, and why the coverage list matters more than the name on the plan. With real prices.
8 min read
T-Mobile international roaming vs eSIM: what your plan includes, and when to add data
What T-Mobile Experience More, Experience Beyond and Essentials include abroad, what the 256 kbps speed means, and how International Passes compare with an eSIM.
8 min read
Do you need a travel eSIM with a phone number? What works on data only, and what doesn't
Most travellers don't need a local number abroad. What works on a data-only eSIM, when a local number helps, and how to keep your home number reachable.
10 min read
UK roaming charges in Europe: what every network charges, checked September 2026
EU roaming prices for EE, Vodafone, Three, O2, Sky, giffgaff and Tesco Mobile as of September 2026, which networks are still free, and what a 7 or 14-day trip costs.
7 min read
Unlimited vs fixed data eSIM: which is better for your trip?
How "unlimited" and daily eSIM plans really work — daily caps, throttling and fair use — how they compare with a fixed number of GB, and which wins for which kind of trip.
9 min read
Verizon TravelPass vs eSIM: the break-even by trip length, and how to stop a $12 day firing
What Verizon TravelPass costs over 3, 7, 14 and 30 days in Europe, Japan, Mexico and Canada, what starts a charge, and the iPhone settings that prevent one.
8 min read
What is an eSIM? A plain explanation for travellers
An eSIM is a SIM built into your phone that you download instead of insert. What it is, how it works on iPhone, what a travel eSIM adds, and what it can't do.
7 min read
Which iPhones support eSIM? Full list, carrier lock check and dual SIM limits
Every iPhone from the XS and XR onwards supports eSIM. The full model list, which iPhones are eSIM-only and where, how to check for a carrier lock, and how many lines you can run at once.
Destination guides
8 min read
Best eSIM for Americans travelling to Europe (2026): one plan for 33 countries, compared with carrier day passes
A US traveller's guide to Europe data: Verizon, AT&T and T-Mobile costs against a 33-country eSIM, multi-country trips, bank codes, and the Turkey and Balkans gaps.
8 min read
Best eSIM for Europe: regional plan or one country at a time?
How to choose a travel eSIM for a multi-country Europe trip — which regional plans cover which countries, when a single-country plan is cheaper, and how much data two or three weeks uses.
9 min read
Best eSIM for the USA: data, coverage and prices for a trip to the United States
How to pick a travel eSIM for the United States — how much data a city break or road trip uses, where coverage runs out, whether you need a US number, and what plans actually cost.
7 min read
eSIM for Australia and New Zealand: prices, outback gaps and road-trip coverage
What mobile data costs in Australia and New Zealand, why one country plan each usually beats a combined plan, and where signal disappears on outback highways and South Island passes.
9 min read
eSIM for Bali from Australia: AUD prices, Telstra and Optus roaming, and the IMEI rules (2026)
What a Bali travel eSIM costs in AUD, what Telstra, Optus and Vodafone charge in Indonesia, Gojek and Grab without a local number, and who the IMEI rules affect.
6 min read
eSIM for Bali and Indonesia: data, coverage and the IMEI question
What mobile data costs in Bali, where signal disappears on Nusa Penida and the Gilis, whether you need a local SIM card, and why a travel eSIM sidesteps Indonesia's IMEI registration rules.
7 min read
eSIM for Brazil: prices, coverage from Rio to the Amazon, and keeping your phone safe (2026)
Brazil eSIM prices in USD and reais, how much data a trip uses, coverage in the Amazon, Pantanal and at Iguaçu, the apps Brazil runs on, and phone theft advice.
7 min read
eSIM for Canada: road trips, national parks and the dead zones
What a travel eSIM for Canada costs, why coverage looks great on a population map and patchy on a highway, and which plan fits a trip that includes the US.
8 min read
eSIM for Canadians visiting the USA (2026): Rogers, Bell and Telus US roaming compared, in CAD
What Rogers, Bell and Telus charge to roam in the US, compared with a US eSIM in Canadian dollars, plus cross-border road trips and snowbird stays of up to 180 days.
7 min read
eSIM for China: Google, WhatsApp, payments and what actually works
How a travel eSIM behaves in mainland China, why roaming data usually reaches Google and WhatsApp when hotel wifi doesn't, what it costs, and how to set up Alipay and WeChat Pay before you fly.
7 min read
eSIM for Colombia: prices, coverage from Cartagena to the Amazon, and phone safety (2026)
What a Colombia eSIM costs, how much data a trip uses, where signal drops on the Lost City trek and in the Amazon, ride apps, and how to use your phone safely.
8 min read
eSIM for Croatia (2026): island hopping, the Neum corridor, and which plan to buy
Mobile data in Croatia for island hopping and road trips, with plan prices, island and ferry coverage, Bosnia and Montenegro day trips, and when Europe plans win.
8 min read
eSIMs for digital nomads and long stays: monthly plans, top-ups and when to go local
How to handle mobile data over months abroad — long-validity plans, monthly plans that renew on the same eSIM, top-ups versus buying a new eSIM, and when a local SIM is the better answer.
7 min read
eSIM for Dubai and the UAE: data prices, calling apps and coverage
What mobile data costs in Dubai and Abu Dhabi, why WhatsApp and FaceTime calls are restricted in the UAE, what the free airport SIM gives you, and which plan fits a Gulf itinerary.
6 min read
eSIM for Egypt: data prices, the phone tax rules and coverage on the Nile
What mobile data costs in Egypt, how the 2026 phone customs changes affect tourists, where coverage holds up from Cairo to Aswan and the Red Sea, and what to expect from WhatsApp calls.
9 min read
eSIM for France: data plans, coverage and what to know before you land
How much data a trip to France needs, where coverage is strong and where it thins, and which plan fits Paris, a road trip or a multi-country itinerary.
8 min read
eSIM for Germany (2026): rural dead zones, coverage on trains, and which plan to buy
A practical guide to mobile data in Germany, with plan prices, where coverage still drops, why ICE trains lose signal, useful apps, and when a Europe plan wins.
8 min read
eSIM for Greece: island hopping, ferries and how much data you need
What a travel eSIM for Greece costs, where coverage is strong and where it isn't, and the one ferry setting that saves you from a roaming bill.
8 min read
eSIM for Hong Kong (2026): coverage, mainland China crossings, Macau, and which plan to buy
A Hong Kong eSIM covers the city, the MTR and the islands but stops at the mainland border. Prices, Shenzhen and Macau crossings, and the apps worth installing.
8 min read
eSIM for Iceland (2026): Ring Road coverage, the highlands, and which plan to buy
Mobile data for an Iceland road trip, with plan prices, Ring Road and Westfjords coverage, why the highlands have none, and emergency numbers after the 3G shutdown.
9 min read
eSIM for India (2026): do travel eSIMs work, tourist SIM KYC, and which plan to buy
Travel eSIMs work in India by roaming on Indian networks, so you skip tourist SIM KYC. Prices, coverage, trains, Kashmir caveats and the apps that need data.
8 min read
eSIM for Italy: how much data, where coverage drops, and which plan to buy
A practical guide to mobile data in Italy — plan sizes and prices, coverage from Milan to Sicily, trains and ferries, and when a regional Europe plan is the better buy.
7 min read
eSIM for Mexico: coverage, prices and whether you need a local number
What a travel eSIM for Mexico costs, where coverage is strong and where it drops off, and how to handle a trip that crosses into the US or Canada.
6 min read
eSIM for Morocco: data in the medinas, the Atlas and the Sahara
What mobile data costs in Morocco, how coverage holds up in Marrakech and Fes, the Atlas Mountains and desert camps, which ride-hailing apps work, and whether to combine Morocco with Spain on one plan.
8 min read
eSIM for Peru: Machu Picchu coverage, plan prices and how much data you need (2026)
Peru eSIM prices, how much data a Cusco and Machu Picchu trip uses, where signal stops on the Inca Trail and in the Amazon, and staying safe with your phone.
8 min read
eSIM for the Philippines (2026): island coverage, SIM registration, and which plan to buy
A travel eSIM skips Philippine SIM registration and its 30-day tourist limit. Plan prices, Smart and Globe coverage on the islands, ferries, and apps that need data.
8 min read
eSIM for Portugal: data for Lisbon, the Algarve, Madeira and the Azores
How much mobile data a Portugal trip needs, how coverage holds up on the mainland and the islands, and when a Spain-and-Portugal regional plan beats two single-country ones.
7 min read
eSIM for Singapore and Malaysia: one plan or two, and what each costs
Mobile data prices for Singapore and Malaysia, when a combined eSIM beats two country plans, crossing the Causeway without roaming charges, and coverage from Kuala Lumpur to Borneo.
8 min read
eSIM for South Africa: prices, Kruger and Garden Route coverage, and load-shedding in 2026
South Africa eSIM prices, data for a safari or road trip, signal in Kruger and on the Garden Route, whether load-shedding still hits towers, and phone safety.
9 min read
eSIM for South America backpacking: regional plan or one per country? (2026)
An honest cost comparison of South America regional eSIMs and single-country plans, with worked routes, border tips, Patagonia coverage and when a local SIM wins.
6 min read
eSIM for South Korea: data, maps and apps that actually work
What mobile data costs in South Korea, why Google Maps won't get you around Seoul on foot, whether you need a Korean number for Kakao T, and how to pair Korea with Japan on one eSIM.
8 min read
eSIM for Southeast Asia backpacking: one plan across Thailand, Vietnam, Cambodia and Laos
Which regional eSIM covers which countries, what they cost against single-country plans, what happens at land borders, and how to keep one line going for a three-month trip.
8 min read
eSIM for Spain: data plans, coverage and tips for the islands and the Camino
What a Spain trip needs in mobile data, how coverage holds up from Madrid to the Pyrenees and the islands, and which plan to buy if Portugal, Gibraltar or Morocco are on the route.
10 min read
eSIM for study abroad: the first weeks, the switch to a local SIM, and 180-day plans
How to handle mobile data for a semester or year abroad, when a travel eSIM beats a local SIM, 180-day plan prices, bank and phone number needs, and top-ups.
10 min read
Switzerland eSIM: prices, roaming traps and ski resort coverage (2026)
Switzerland isn't in the EU, so UK and EU phone plans can charge extra there. Swiss eSIM prices, Europe plan coverage, trains, ski resorts and Liechtenstein.
7 min read
eSIM for Thailand: coverage, prices and what to know before you land
How much data a Thailand trip uses, what plans cost, where coverage thins out on the islands, and why a travel eSIM skips the new passport-and-face-scan queue for local SIMs.
7 min read
eSIM for Turkey: prices, 5G, the IMEI rule and what tourists need
What a travel eSIM for Turkey (Türkiye) costs, how coverage holds up from Istanbul to Cappadocia, and what the 120-day phone registration rule means for a visitor.
8 min read
eSIM for the UK: data plans, coverage and roaming after Brexit
What to know before buying data for a trip to the United Kingdom — what plans cost, where signal drops out, how the Tube and trains behave, and why EU roaming no longer covers the UK.
9 min read
eSIM for the USA from the UK: prices in pounds, roaming costs and bank codes (2026)
What a US travel eSIM costs in pounds, what EE, Vodafone, Three, O2 and Sky charge in the USA, how to keep your UK number for bank codes, and what size to buy.
6 min read
eSIM for Vietnam: prices, coverage from Hanoi to the Ha Giang Loop
What mobile data costs in Vietnam, where coverage holds up and where it doesn't, the 2026 face-scan rules for local SIMs, and how to get online the moment you land.
9 min read
Japan eSIM guide: data, coverage and setup for a first trip
What to know before buying data for Japan. How much a typical trip uses, with real plan prices; eSIM vs pocket Wi-Fi; arriving at Narita, Haneda or Kansai; rural coverage; Suica on iPhone; apps that want a phone number; and combining Japan with Korea.