Most Japan trips go smoothly. But a single slip — a runaway roaming bill, a delayed bag with your only jacket, a sprained ankle in Kyoto on a Sunday night — can derail a ten-month savings plan in a single afternoon. This is the checklist we've compressed from twelve trips and one or two painful lessons. Everything here is what the editors at WaTabi actually do before every flight, in the order we do it.
If you only have ten minutes: buy an eSIM, get travel insurance with trip-delay coverage, fill out Visit Japan Web, bring ¥20,000 cash for Day 1, and download Google Maps offline for your destination cities. Everything else is optimisation.
1. Connectivity: eSIM is the 2026 default
In 2020 the answer was pocket Wi-Fi. In 2026 it is eSIM, and it is not close. A Japan eSIM now costs roughly 40% less than pocket Wi-Fi rental, activates at the airport gate, has no deposit, no return kiosk, no battery to charge, and no second device to lose. The only reasons to still use pocket Wi-Fi are (a) a group of 3+ who plan to stay close to one device, or (b) a phone older than an iPhone XS / Samsung Galaxy S20 FE that doesn't support eSIM.
| Option | 5-day price | Pros | Cons |
|---|---|---|---|
| eSIM (unlimited) | $10–$17 | Instant activation, no deposit, no hardware | Older phones unsupported, solo data only |
| Physical SIM | $11–$20 | Any phone with a SIM tray | Must swap home SIM, easy to lose |
| Pocket Wi-Fi | $20–$33 | Shareable, unlimited | Charging, deposit, airport return required |
| Carrier roaming | $10/day + | Zero setup | 5x cost of eSIM for anything over 2 days |
We tested five Japan eSIM brands across Tokyo, Kyoto and Hokkaido in March 2026 and ranked them honestly by coverage, speed and install friction. Full results in our eSIM head-to-head review.
Japan unlimited eSIM (5–30 day options)
QR code delivered in minutes. SoftBank + KDDI backhaul, which gave us the most consistent coverage in rural Hokkaido.
Get Japan eSIM →2. Travel insurance: the non-negotiable ¥2,000 bet
Japanese medical bills are shocking when you see them up close. An emergency-room visit starts at around ¥30,000 (USD 200) for the consultation alone; imaging adds ¥20,000; an inpatient night is ¥50,000 and up. A sprained knee on the Fushimi Inari steps — yes, we've had a reader write to us about exactly this — ran USD 1,800 between taxi, imaging and crutches. A USD 12 insurance policy would have covered the lot.
The three coverage tiers that actually pay out:
- Medical: at least USD 100,000. Lower limits look cheaper but quickly run out for anything involving hospitalisation.
- Trip delay: 4-hour trigger. Typhoon season (September–October) delivers real delays. A 4-hour trigger means your airport hotel, dinner and toiletries are covered.
- Baggage delay: 6-hour trigger. Covers the cost of buying emergency clothes and toiletries while your bag catches up.
Credit-card-embedded insurance usually fails on one of these three — most commonly on medical limits. Read the fine print before relying on it.
3. Visit Japan Web: the 10-minute form that saves 40 minutes
Visit Japan Web is Japan's digital immigration and customs declaration system. It merges the two paper forms you used to fill out on the plane into one QR code. At Narita, Haneda and Kansai, a dedicated e-gate lane accepts the QR directly — during peak arrival waves we have saved 20–40 minutes versus the paper-form lane.
Fill it out any time within 14 days before your flight. You'll need: your passport, your flight number, your first-night hotel address in Japan, and a phone camera to scan the passport photo page. At the airport, open the app offline (it caches the QR), scan at immigration, scan again at customs, done.
One gotcha: if you change your first-night hotel after registering, log back in and update. The address on the form must match where you will sleep on Night 1.
4. Cash, card or Suica: the 2026 ratio
Japan has rewritten its payment landscape in three years. The "Japan is cash-only" reputation is now half-true. Our current target ratio: 30% cash, 50% credit card, 20% IC card (Suica/Pasmo).
Card works: chain restaurants, department stores, most hotels, major museums, Shinkansen tickets, taxis in big cities, any retailer showing a Visa/Mastercard/JCB sticker at the door.
Cash only: shrines and temples (offerings, goshuin books), mom-and-pop ramen shops, outdoor markets, some taxis in smaller cities, some ryokan additional fees.
IC card (fastest): konbini, trains, buses, vending machines, coin lockers, most chain cafés. Apple Pay Suica and Google Wallet Suica both work on iPhone 8+ and most modern Android — you never need to touch the physical card.
For withdrawing cash, Seven Bank ATMs inside 7-Eleven give the best exchange rate and accept nearly every foreign card. Japan Post ATMs are second best and have the widest rural coverage.
5. Luggage: the 25-in, 29-in strategy
Japan's transit system is not generous to oversized bags. Shinkansen luggage racks fit 29-inch suitcases only in the rear "oversized baggage" row, which you must reserve in advance as of May 2020. Narrow taxi trunks in Kyoto, tight hotel elevators in Shinjuku, and metro turnstiles that genuinely do not fit a 32-inch spinner make the 29-inch the practical upper ceiling.
Our strategy on every trip: fly in with a 25-inch suitcase (light, easier on trains), and nest a folded 29-inch duffel or lightweight second case inside it. Fill the 29-inch on the way home with shopping. This sidesteps the "overweight on arrival" problem and keeps you nimble on travel days.
Expandable hardside + packable duffel
Look for double TSA locks, spinner wheels, an expandable zip gusset, and sub-10-lb (4.5 kg) empty weight.
Shop luggage →6. Five apps to install before the flight
- Google Maps — Download offline maps for Tokyo, Osaka and Kyoto. Transit directions in Japan are the most accurate of any country we've tested.
- Navitime Transit (for Japan Travel) — More accurate than Google for last-train times, Shinkansen reservations and express-vs-local filtering. The free version is enough.
- Visit Japan Web — The digital immigration system covered above.
- Tabelog — Japan's trusted restaurant review app. A Tabelog 3.5 is genuinely better than a Google 4.5 in most cities.
- LINE — Japan's dominant messenger. Some ryokan reservations, izakaya booking bots and after-hours hotel communications run on LINE-only channels.
7. Where to stay: three filters that always work
Picking a Japan hotel is paralysing because there are too many good options. We cut through it with three hard filters:
- ≤ 5 minutes from a station entrance. In hot/cold/rainy weather, the difference between 4 minutes and 12 minutes is the difference between loving your hotel and resenting it.
- Has an elevator. Many older Japanese hotels are stairs-only. With a suitcase, this is a deal-breaker.
- Free cancellation. Book early for choice, keep the option to re-optimise later.
Neighbourhood defaults that rarely disappoint: Tokyo — Shinjuku, Tokyo Station or Ueno. Osaka — Namba or Umeda. Kyoto — Kyoto Station or Kawaramachi. Sapporo — within 10 minutes walk of Sapporo Station.
Japan hotels with free cancellation
Filter by "free cancellation" and "pay at property"; sort by distance to transit.
Search Japan hotels →8. Tax-free shopping: the ¥5,000 rule and the 2026 changes
Foreign tourists can shop tax-free (currently 10% consumption tax) at participating stores when the daily total at that store exceeds ¥5,000 (pre-tax). Consumables (food, drink, cosmetics, supplements) and general goods (electronics, clothes) are calculated separately.
How to claim: present your physical passport (not a photo) at the tax-free counter or at the register. Most chain stores — BIC Camera, Don Quijote, Matsumoto Kiyoshi, Uniqlo, major department stores — process tax-free at a dedicated counter after normal checkout. Independent boutiques vary; look for a "Tax-Free Shop" sticker at the entrance.
2026 heads-up: Japan's government has announced a phased migration toward a refund-at-departure model for tax-free purchases, similar to the EU. The rollout has been delayed multiple times; as of April 2026, most stores still use the older register-side exemption. Keep receipts in a separate envelope either way — they can be requested by customs on exit.
9. Peak seasons to schedule around
Three domestic travel peaks when even a loose itinerary gets hard:
- Golden Week (late April to early May): four national holidays in seven days. Hotels double in price, Shinkansen sell out, Kyoto becomes a slow-moving selfie stick.
- Obon (mid-August, usually Aug 13–16): the ancestral festival return-to-hometown migration. Inverse of Golden Week — cities empty, rural Japan jams up, and prices on the routes out of Tokyo spike.
- New Year (December 29 to January 3): Japan shuts. Many restaurants and family-owned shops close. Trains and flights are full, temples at midnight on New Year's Eve are joyous but standing-room-only.
International peaks to budget for: cherry blossom (late March–first week of April) and autumn leaves (mid- to late November). Both windows are short and crowded; build a ±10-day window if the photos are the whole point.
10. The 72-hour pre-departure checklist
- Passport valid 6+ months from entry date
- Visit Japan Web filled and QR screenshot saved offline
- Flight, hotel, insurance confirmations printed or saved to phone
- Credit card activated for international use (call issuer if unsure)
- eSIM QR received and — ideally — installed but not activated
- Suica added to Apple Pay / Google Wallet
- Google Maps offline areas downloaded
- Navitime and Tabelog installed
- Power adapter packed (Type A is the native Japan plug)
- ¥15,000–¥20,000 cash for Day 1
- Portable phone battery (at least 10,000 mAh)
- Small foldable bag for shopping and trash (there are very few public bins in Japan)
Seasonal packing: what to actually bring
Japan is not one climate. Sapporo in January and Naha in January differ by 25°C. Pack for the city you'll spend the most nights in, and add one layer for the outliers.
Spring (March–May): temperatures swing 8–20°C between morning and afternoon. A packable down jacket, a light sweater and a pair of jeans cover nearly everything. Rain jacket for April showers. Sunglasses — sakura season is deceptively bright.
Summer (June–August): humidity is the enemy, not heat. Moisture-wicking t-shirts, quick-dry underwear, a small hand towel (Japanese public restrooms often lack paper towels, and locals carry one), a hat and a compact umbrella that doubles as sun parasol. Rainy season (mid-June to mid-July) needs genuine rain gear, not a windbreaker.
Autumn (September–November): the most forgiving season. Jeans and a light jacket by day, a scarf after sunset. Typhoon season runs September into early October — check forecasts 72 hours before any mountain or coastal day trip.
Winter (December–February): drier and clearer than most visitors expect, but cold. Merino base layer, a wool sweater, a mid-weight down jacket (not a heavy ski parka unless you're heading to Hokkaido), gloves and a beanie. Heattech from Uniqlo is genuinely the cheapest performance base layer you can buy — stock up in Japan rather than packing from home.
The konbini starter pack
Japanese convenience stores (7-Eleven, FamilyMart, Lawson) are not the gas-station afterthoughts you know from home. They are the unofficial travel-support network of every trip: ATM, printer, package drop-off, tax counter, 3 am ramen shop, and first-aid stocker, all behind the same automatic doors.
The items we reach for every single trip:
- Onigiri (rice balls): ¥150–¥250, 300 calories of breakfast in one hand. Tuna mayo, salmon and pickled plum (umeboshi) are the safe starts.
- Seven Premium egg sandwich: the internet loves it for a reason. It is a genuinely good ¥350 breakfast.
- Hot oden in winter: self-serve from the counter hot case. Point at a daikon and a fish cake and you have a ¥400 meal.
- Family Mart fried chicken (Famichiki): the single item most repeat visitors smuggle into their daily rhythm.
- Cold brew coffee (Boss, Suntory): vending machine or fridge. Better and cheaper than any café chain.
- Pocari Sweat or Aquarius: electrolyte drinks, essential in summer humidity.
- Adhesive bandages and blister plasters: you will blister. Brand name: Band-Aid Kizupower or Hydrocolloid 絆創膏.
Seven Bank ATMs inside 7-Eleven are the best foreign-card ATMs in Japan. Lawson ATMs are a close second and are the only ones reliably open in smaller towns.
A quick ryokan and onsen primer
If your itinerary includes even one night in a traditional ryokan or a day trip to an onsen town (Hakone, Kusatsu, Noboribetsu, Kurokawa), a ten-minute read on etiquette saves an uncomfortable hour on the floor.
Check-in rhythm: most ryokan check-in is 3–4 pm with a welcome tea and sweet. Dinner is served in your room or a private dining room at a fixed time (usually 6 or 6:30 pm). Breakfast is similarly scheduled — this is not a hotel where you drift down at 10 am.
Shoes off at the genkan (entry step): the moment you step inside the main door, shoes come off. Slippers are provided. Remove the slippers again before stepping onto tatami mats.
Yukata: the cotton robe in your room is for wearing around the ryokan, to dinner, and to the onsen. Left side wrapped over right (right over left is for funerals — this is the one that catches people). Tie the obi belt at the front or side.
Onsen etiquette: wash thoroughly at the seated showers before entering the bath. No swimsuits. Do not submerge the small towel in the water — fold it and place it on your head or the bath edge. Tattoos: many traditional onsen still bar them; a tattoo-friendly list is maintained at tattoofriendly.jp. Soak for 10–15 minutes, cool off, re-enter if you want. Drink water — onsen dehydrate you faster than you think.
Two common mistakes and their fixes
Mistake: Bringing a high-wattage hair dryer or flat iron from home.
Fix: Japanese outlets are 100V (vs 120V US, 230V EU). High-wattage heating appliances underperform or trip the breaker. Most hotels supply one; for ryokan and Airbnb, buy a cheap Panasonic dryer at any BIC Camera for ¥3,000.
Mistake: Assuming you can pay everywhere with card.
Fix: Shrines, small ramen shops, some taxis and nearly all vending machines still need cash or IC card. Load ¥3,000 onto Apple Pay Suica as a minimum floor — it opens 90% of vending machines, convenience stores and metro gates.
One last principle: leave gaps
The best Japan memories are almost never the ticketed ones. They are the small stuff — a convenience-store onigiri eaten on a riverbank at 4 pm, the farmland sliding past a limited-express window, a nod from an izakaya owner when you finish a drink you didn't plan to order. Over-scheduling crowds these out.
When we plan our own trips, we leave at least two unstructured half-days per week of travel. It feels wasteful on the spreadsheet and turns out to be the best line item on the whole trip.
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