TRAVEL eSIM KNOWLEDGE HUB
Everything you need to know before you connect.
145 practical guides, grouped by the question you are trying to solve — from buying and installing an eSIM to roaming, data planning, reuse and troubleshooting.
145practical guides
5clear topics
Start with the basics
Understand what an eSIM is, when to buy it, when it activates, and how it works alongside your normal SIM.
How does an eSIM work?Read guide →How to buy a travel eSIM onlineRead guide →Can you buy an eSIM before you travel?Read guide →When should you install your travel eSIM?Read guide →Installing an eSIM vs activating the planRead guide →Can a travel eSIM receive calls or SMS?Read guide →Does an eSIM change your phone number?Read guide →Can you receive verification codes with a travel eSIM?Read guide →Can you reuse a travel eSIM on another trip?Read guide →Can you use an eSIM and physical SIM at the same time?Read guide →
Setup, phones & troubleshooting
Install correctly, check device compatibility, configure iPhone or Android, and fix the most common setup problems.
How to install a travel eSIMRead guide →Is your phone eSIM compatible?Read guide →Travel eSIM on iPhone: the settings that matterRead guide →Travel eSIM on Android: a clean setup checklistRead guide →Travel eSIM APN settings: when should you touch them?Read guide →Travel eSIM not working?Read guide →Can you use hotspot with a travel eSIM?Read guide →Can you install an eSIM without Wi-Fi?Read guide →
Roaming, connectivity & travel apps
Use roaming settings safely and understand how travel data works with Wi-Fi, WhatsApp, maps and ride-hailing apps.
Should data roaming be on for a travel eSIM?Read guide →How to avoid roaming charges with a travel eSIMRead guide →Travel eSIM vs international roamingRead guide →Travel eSIM vs airport Wi-FiRead guide →Will WhatsApp work with a travel eSIM?Read guide →Do you need an eSIM for Google Maps abroad?Read guide →Using Uber or ride apps abroad with an eSIMRead guide →Should you turn off your primary SIM abroad?Read guide →
Plan the right amount of data
Choose a realistic allowance for a weekend, one week, two weeks or a month — and know what happens when data runs out.
How much travel data do you need?Read guide →Is 1GB enough for travel?Read guide →How much eSIM data do you need for a 7-day trip?Read guide →How much eSIM data for a weekend trip?Read guide →How much eSIM data do you need for 14 days?Read guide →How much eSIM data do you need for a 30-day trip?Read guide →What happens when your travel eSIM data runs out?Read guide →5GB vs 10GB eSIM: which one fits your trip?Read guide →How much data do you need for a trip to Mexico?Read guide →How much data do you need for a trip to Japan?Read guide →How much data do you need for a trip to Thailand?Read guide →How much data do you need for a trip to Italy?Read guide →How much data do you need for a trip to the USA?Read guide →How much data do you need for a trip to France?Read guide →How much data do you need for a trip to Turkey?Read guide →How much data do you need for a trip to Spain?Read guide →How much data do you need for Dubai and the UAE?Read guide →How much data do you need for a trip to the UK?Read guide →How much data do you need for a trip to Greece?Read guide →How much data do you need for South Korea?Read guide →How much data do you need for Portugal?Read guide →How much data do you need for Germany?Read guide →How much data do you need for the Netherlands?Read guide →How much data do you need for Singapore?Read guide →How much data do you need for Indonesia or Bali?Read guide →How much data do you need for Australia?Read guide →How much data do you need for Vietnam?Read guide →How much data do you need for Canada?Read guide →How much data do you need for the Philippines?Read guide →How much data do you need for Switzerland?Read guide →How much data do you need for Malaysia?Read guide →How much data do you need for New Zealand?Read guide →How much data do you need for Czech Republic?Read guide →How much data do you need for Austria?Read guide →How much data do you need for Croatia?Read guide →How much data do you need for Norway?Read guide →How much data do you need for Denmark?Read guide →How much data do you need for Taiwan?Read guide →How much data do you need for Hong Kong?Read guide →How much data do you need for Poland?Read guide →How much data do you need for Iceland?Read guide →How much data do you need for Ireland?Read guide →How much data do you need for Belgium?Read guide →How much data do you need for Sweden?Read guide →How much data do you need for Hungary?Read guide →How much data do you need for Romania?Read guide →
Choose the right kind of plan
Compare country vs regional coverage and fixed-data vs unlimited options before checkout.
Country eSIM vs regional eSIMRead guide →Cheap eSIM vs unlimited data: what are you actually paying for?Read guide →Mexico eSIM guide: data, roaming, setup and plansRead guide →Mexico eSIM vs roaming: which makes more sense?Read guide →Cancun eSIM guide: data, setup and Mexico plansRead guide →Japan eSIM guide: data, setup, trains and plansRead guide →Thailand eSIM guide: data, Grab, islands and plansRead guide →Italy eSIM guide: data, trains, setup and plansRead guide →USA eSIM guide: data, road trips, setup and plansRead guide →France eSIM guide: data, trains, setup and plansRead guide →Turkey eSIM guide: Istanbul, touring, setup and plansRead guide →Spain eSIM guide: data, cities, setup and plansRead guide →Barcelona eSIM guide: airport setup, data and Spain plansRead guide →UAE eSIM guide: Dubai, Abu Dhabi, data and setupRead guide →Dubai eSIM guide: airport setup, data and UAE plansRead guide →UK eSIM guide: London, trains, data and plansRead guide →London eSIM guide: airports, Tube, data and UK plansRead guide →Greece eSIM guide: Athens, islands, ferries and plansRead guide →Santorini eSIM guide: data, ferries and Greece plansRead guide →South Korea eSIM guide: Seoul, maps, data and plansRead guide →Seoul eSIM guide: Incheon Airport, maps and dataRead guide →Portugal eSIM guide: Lisbon, Porto, data and plansRead guide →Lisbon eSIM guide: airport, trams, Sintra and dataRead guide →Germany eSIM guide: Berlin, trains, data and plansRead guide →Berlin eSIM guide: BER Airport, transit and dataRead guide →Netherlands eSIM guide: Amsterdam, trains, data and plansRead guide →Amsterdam eSIM guide: Schiphol, trams, maps and dataRead guide →Singapore eSIM guide: Changi, MRT, data and plansRead guide →Changi Airport eSIM guide: Wi-Fi, setup and Singapore dataRead guide →Indonesia eSIM guide: Bali, Gojek, data and plansRead guide →Bali eSIM guide: airport, Grab, Gojek, maps and dataRead guide →Australia eSIM guide: Sydney, road trips, data and plansRead guide →Sydney eSIM guide: airport, trains, ferries and dataRead guide →Vietnam eSIM guide: Hanoi, Ho Chi Minh City, Grab and dataRead guide →Ho Chi Minh City eSIM guide: airport, Grab, maps and dataRead guide →Canada eSIM guide: Toronto, Rockies, data and plansRead guide →Toronto Pearson eSIM guide: airport, transit and dataRead guide →Philippines eSIM guide: Manila, Cebu, islands and dataRead guide →Manila eSIM guide: NAIA, Grab, maps and dataRead guide →Switzerland eSIM guide: Zurich, Alps, trains and roamingRead guide →Zurich Airport eSIM guide: ZRH, trains and Switzerland dataRead guide →Malaysia eSIM guide: KLIA, Grab, Penang and dataRead guide →Kuala Lumpur KLIA eSIM guide: airport, Grab and dataRead guide →New Zealand eSIM guide: Auckland, road trips and dataRead guide →Auckland Airport eSIM guide: AKL Wi-Fi, SIMs and dataRead guide →Czech Republic eSIM guide: Prague, trams, trains and roamingRead guide →Prague eSIM guide: airport, trams, PID Lítačka and dataRead guide →Austria eSIM guide: Vienna, trains, Alps and dataRead guide →Vienna Airport eSIM guide: VIE Wi-Fi, city data and setupRead guide →Croatia eSIM guide: Dubrovnik, Split, ferries and islandsRead guide →Dubrovnik eSIM guide: airport, Old Town, coast and dataRead guide →Norway eSIM guide: Oslo, fjords, road trips and dataRead guide →Oslo Airport eSIM guide: OSL Wi-Fi, Oslo and Norway dataRead guide →Denmark eSIM guide: Copenhagen, trains, Malmö and dataRead guide →Copenhagen Airport eSIM guide: CPH Wi-Fi, Metro and MalmöRead guide →Taiwan eSIM guide: Taipei, Taoyuan, trains and dataRead guide →Taipei & Taoyuan Airport eSIM guide: TPE, MRT and dataRead guide →Hong Kong eSIM guide: airport, MTR, maps and dataRead guide →Hong Kong Airport eSIM guide: HKG Wi-Fi, Airport Express and dataRead guide →Poland eSIM guide: Warsaw, Kraków, trains and dataRead guide →Warsaw Chopin Airport eSIM guide: WAW trains and Poland dataRead guide →Iceland eSIM guide: Keflavík & KEF, roaming and dataRead guide →Keflavík & KEF eSIM guide: airport, transport and Iceland dataRead guide →Ireland eSIM guide: Dublin & DUB, roaming and dataRead guide →Dublin & DUB eSIM guide: airport, transport and Ireland dataRead guide →Belgium eSIM guide: Brussels & BRU, roaming and dataRead guide →Brussels & BRU eSIM guide: airport, transport and Belgium dataRead guide →Sweden eSIM guide: Stockholm & ARN, roaming and dataRead guide →Stockholm & ARN eSIM guide: airport, transport and Sweden dataRead guide →Hungary eSIM guide: Budapest & BUD, roaming and dataRead guide →Budapest & BUD eSIM guide: airport, transport and Hungary dataRead guide →Romania eSIM guide: Bucharest & OTP, roaming and dataRead guide →Bucharest & OTP eSIM guide: airport, transport and Romania dataRead guide →
READY TO SHOP?
Turn the guide into a plan.
Use the Plan Finder if you know your trip length, or browse destinations if you already know where you are going.