Money, Safety & eSIM in Japan
Japan's currency is the yen (JPY, ¥) — despite its high-tech reputation, Japan remains genuinely cash-reliant; carry cash alongside a card, especially outside big cities. ATMs at 7-Eleven and Japan Post branches reliably accept foreign cards 24/7. Japan is exceptionally safe from a crime standpoint; the real considerations are natural-disaster awareness and local etiquette fines — street smoking, public drinking in some districts — that carry real yen amounts, not just disapproval.
The unglamorous but essential stuff: how to handle money in a country that's more cash-based than its robot-and-neon reputation suggests, what the actual safety risks are (spoiler: not crime), and how to stay connected without your carrier's roaming rate giving you a second shock after the flight.
Money and ATMs
The Japanese yen (JPY, ¥) is the currency everywhere. Exchange rates move, so check a current rate rather than an old figure — as a rough planning anchor, $1 has recently traded in the mid-140s to mid-150s in yen, which has made Japan a genuinely good-value destination for visitors paying in USD, EUR, or GBP compared to a decade ago. 7-Eleven and Japan Post ATMs are the most reliable for foreign cards, open 24/7 in most locations.
| Payment method | Where it works best |
|---|---|
| Cash (yen) | Small restaurants, temples, local markets, some traditional ryokan |
| Credit/debit card | Hotels, department stores, chain restaurants, convenience stores |
| IC card (Suica/Pasmo/ICOCA) | Trains, buses, vending machines, most convenience stores |
Japan is still surprisingly cash-heavy
Despite its reputation for cutting-edge technology, Japan remains one of the more cash-reliant developed economies — many small restaurants, older shops, temple entry booths, and some traditional inns still only take cash. Carry ¥10,000–¥20,000 (roughly $65–130) at all times as a buffer, even if your main plan is to pay by card or IC card.
Is Japan safe?
Yes, exceptionally so — Japan is consistently ranked among the world's safest countries for tourists, with violent crime against visitors extremely rare and even petty theft uncommon in crowded areas. The real practical risks are natural: earthquakes (frequent but usually minor; know the basic drop-cover-hold guidance), and typhoon season roughly June through October, which can disrupt travel plans with little notice.
2026's local etiquette fines
Enforcement of local rules has stepped up, with signage now in English — 'I didn't know' doesn't hold up the way it might have a few years ago. Watch for: street smoking outside designated zones (fined in Osaka city-wide and several central Tokyo wards, roughly ¥1,000–2,000); Shibuya's year-round street-drinking ban near the station, 6pm–5am; and Kyoto's ¥10,000 fine for entering Gion's private geisha-district alleys. None of these are hard to avoid once you know they exist — see our attractions guide for the full etiquette rundown.
eSIM and staying connected
eSIM is the easiest option if your phone supports it — providers like Airalo, Ubigi, and Japan-specific plans offer data-only packages from roughly $15–30 for 7–15 days, activated before you even land. Pocket WiFi rental (picked up at the airport, returned by mail at the end of your trip) is the classic alternative if you're traveling with multiple devices or people sharing one connection, running roughly $6–10/day.
Basic safety habits worth having anyway
- Register your accommodation's address in Japanese in your phone (Google Translate or Google Maps) — useful if you need to show a taxi driver or ask for directions.
- Keep a digital copy of your passport separate from the physical one, in case it's lost or stolen (genuinely rare, but worth the five minutes of prep).
- Download the Japan-specific NHK World or Safety Tips app for earthquake and severe-weather alerts in English if you're staying more than a few days.