Traveling to Japan requires planning — and one of the critical points is internet access. With Google Translate, Google Maps, IC cards, hotel reservations, and communication, you'll be using mobile data all the time. Let's take a look at the best eSIM options for Japan in 2026.
Why is internet essential in Japan?
- Language: few Japanese people speak fluent English. Google Translate camera saves the day.
- Transportation: Tokyo's subway has 900+ stations. Without Google Maps, it's easy to get lost.
- IC Cards (Suica, Pasmo): many require an app and online top-up.
- Reservations: popular restaurants (Tsukiji, Shibuya, Kyoto) require booking through Tablelog or OpenTable.
- Communication: WhatsApp with family and friends back in Brazil.
Option 1: Roaming from a Brazilian carrier
Japan is one of the most expensive destinations for roaming. Vivo, Claro, TIM charge R$ 50-100 per day with a data limit. For a 10-day trip: R$ 500-1000 just for internet.
Verdict: avoid.
Option 2: Pocket Wi-Fi (4G router)
Popular in Japan: you rent a router device that connects to the local 4G network and distributes Wi-Fi.
- Advantages: shares with multiple devices, includes phone, tablet, laptop.
- Disadvantages: costs ~$8-12/day, needs to be picked up and returned, charges battery, it's one more thing to lose.
Option 3: Japanese physical SIM card
You can buy it at stores in Narita, Haneda, or Kansai airports.
- Advantages: quick activation at the airport, good quality.
- Disadvantages: needs a SIM swap, loses Brazilian number, bureaucracy at the airport after a 24-hour flight.
Option 4: eSIM for Japan (Easy Chip)
The best option for most travelers:
- Affordable price: starting at $6 for short plans.
- Docomo/Softbank coverage: the best networks in Japan.
- 5G: available in Tokyo, Osaka, Yokohama, and other major cities.
- Installation before the trip: you arrive and are already connected as you exit the plane.
- Maintains Brazilian number: receives bank SMS normally.
How much data do you need?
Estimated consumption in Japan (per day):
- Google Maps: ~100 MB/day
- Google Translate: ~50 MB/day
- WhatsApp + email: ~100 MB/day
- Instagram / TikTok: ~300-500 MB/day
- Occasional streaming (subway): ~500 MB/day
Average total: 1-2 GB/day. For 10 days, we recommend 10-15 GB. For 15 days or more, consider an unlimited plan.
Available plans
| Data | Validity | Approximate Price |
|---|---|---|
| 3 GB | 7 days | ~$6 |
| 10 GB | 15 days | ~$17 |
| 20 GB | 30 days | ~$27 |
| Unlimited | 15 days | ~$30 |
Check the updated plans on the eSIM for Japan page.
Usage tips in Japan
- Subway/train: Google Maps works great. Download the offline map as a backup.
- Google Translate: download the Japanese language offline — it saves you in cases without signal (punctual underground subways).
- Tabelog: Japanese app for restaurant reviews, better than Google in local spots.
- Digital Suica: on iPhone, activate Suica in Apple Wallet — pays for everything: subway, convenience store, machines.
- Public Wi-Fi: available in almost all stations and cafes, but requires email login — sometimes complicated. eSIM is more practical.
Coverage in tourist locations
- Tokyo (Shibuya, Shinjuku, Asakusa): 5G almost everywhere.
- Osaka, Kyoto: excellent 4G/5G.
- Mount Fuji, Hakone, Nikko: stable 4G.
- Shinkansen trains: 4G in most sections.
- Subway: 4G in stations and starting in 2023 also in Tokyo tunnels.
Ready for a connected experience in Japan? Check the plans and travel with peace of mind.
Frequently asked questions sobre este tema
Qual o melhor eSIM para o Japan?
eSIMs com cobertura Docomo ou Softbank oferecem a melhor qualidade. Para uso moderado em 10 days, recomendamos 10-15 GB.
O eSIM funciona no metrô de Tóquio?
Sim. Tóquio tem cobertura 4G/5G nas estações e em boa parte dos túneis do metrô.
