Frequently asked
Departure Questions
Short answers to the questions independent travellers ask us most often before flying to Japan and nearby Asian destinations. Each links to a fuller guide.
Connectivity
Do I need an eSIM, or is Wi-Fi enough?
Free Wi-Fi is available in many stations and cafés but is unreliable on the move. A data connection makes maps, translation and ride-hailing dependable. See Connect Before Arrival.
How do I know if my phone supports eSIM?
On iPhone, look in Settings, General, About for a Digital SIM section or EID. On many Android phones, dialling *#06# shows an EID if eSIM is supported. The phone must also be carrier-unlocked.
Transport
Can I use Suica on my own iPhone?
Generally yes. Recent iPhones bought outside Japan can add Suica, PASMO or ICOCA to Apple Wallet. Most Android phones sold abroad cannot, so use a physical card. See Navigate the Next Leg.
Will Google Maps work in South Korea?
It shows public transport but gives limited walking and driving directions. Naver Map and KakaoMap, which offer English interfaces, are more complete.
Payments
Is cash still needed in Japan?
Less than before, but small restaurants, some temples and shrines, and rural buses may be cash-only. 7-Eleven and Japan Post Bank ATMs accept most foreign cards. See Pay With a Backup.
Can visitors use Alipay and WeChat Pay in China?
Yes. Both apps let visitors link foreign Visa or Mastercard cards. Set them up and verify your identity before you travel, and keep some cash as a backup.
Should I pay in my home currency when asked?
Usually no. Choosing the local currency avoids dynamic currency conversion, which typically uses a less favourable rate.
Language and accessories
Do translation apps work without internet?
Google Translate and Apple Translate work offline if you download the language packs in advance. Test them in flight mode before departure. See Make Yourself Understood.
What plug adapter do I need?
Japan uses flat two-pin Type A sockets at 100 V. South Korea uses round-pin sockets at 220 V. Hong Kong and Singapore use three-pin Type G. Check your charger's voltage label.
Not seeing your question? Write to the desk and we will answer by email.