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Guides for staying online abroad

Destinations, data, roaming and how to get set up before you fly.

• Does WhatsApp work with a travel eSIM? Keep your numberYes: WhatsApp works on a travel eSIM and keeps your usual number. What to set up, where codes go, calls, data, LINE, KakaoTalk and where calls are blocked.
• eSIM for Europe: a guide for US, Canada and AustraliaNeed an eSIM for Europe? What US, Canadian and Australian roaming costs there, which countries a regional plan misses, how borders work, and setup steps.
• eSIM for Japan: what to know before you flyeSIM for Japan, explained: the networks you'll use, how much data you need, step-by-step setup, eSIM vs pocket Wi-Fi, and the mistakes that waste data.
• eSIM for Thailand: a traveller's guideeSIM for Thailand, explained: the networks you'll use, eSIM vs an airport SIM, how much data you need, setup steps, island signal and mistakes to avoid.
• eSIM for Umrah and Hajj: stay connected in MakkahAn eSIM for Umrah gives you data as you land, for Nusuk permits and WhatsApp. Saudi networks, Haram crowds, Gulf roaming packs and setup, step by step.
• eSIM for USA: a guide for UK, EU and Australian visitorsDo you need an eSIM for USA trips? What UK, EU and Australian roaming costs there, which plan fits your trip, how to set it up and where signal drops.
• eSIM vs roaming: which is cheaper for your trip?eSIM vs roaming compared with real carrier prices from the UK, US, Canada and Australia, how daily passes charge you, and when roaming is the better deal.
• How much data do I need for a week abroad?How much data you need for a week abroad: what each app uses per hour, a quick way to size your plan from your phone at home, and how to make data last.
• UK roaming in the USA vs an eSIM: what it costsUK roaming in the USA costs £7–£8 a day per phone on most networks. See EE, Vodafone, O2 and Three prices, worked trip totals and when an eSIM costs less.
• Unlimited eSIM data: what "unlimited" really meansMost unlimited eSIM plans give a daily full-speed allowance, then slow down. What still works at 1 Mbps, a worked example and five checks before buying.
• What is an eSIM? A plain-English guide for travellersWhat an eSIM is, how it works, which phones support it, and how to use one abroad without roaming charges. A complete guide for travellers.