Japan's most reliable travel eSIM. Valid on Docomo & KDDI networks for perfect coverage on the Bullet Train.
The best eSIM for Tokyo is one that works instantly, avoids roaming fees, and doesn’t require local SIM registration. Ovosim connects you immediately on arrival with reliable 5G coverage.
Tokyo eSIM Configuration
Instant delivery
⭐ 4.8/5 · 1,200+ verified travelers.
3GB/Day
5GB/Day
2GB/Day
Why smart travelers switch to Ovosim for Tokyo.
| Feature | OVOSIM | Airalo | Your Carrier Roaming |
|---|---|---|---|
| Cost (Standard Plan) | From €2.99 | €8.99 | $10/day+ |
| Network Speed | 5G / 4G+ Priority | Throttled | Varies |
| Setup | Instant QR | Manual | Automatic |
| Works with foreign cards | Yes | Limited | No |
| Available at airport | Before arrival | Sometimes | No |
Last updated:
No surprises at the airport. Activate instantly on arrival.
Chat with actual humans if something goes wrong.
No hidden fees. No roaming charges. Period.
Ready in 3 simple steps.
Go to Settings > Cellular > Add eSIM and scan the QR code from our website
Name it 'Travel Data'. Set it to 'Secondary' so your main number still works.
When you land, turn on 'Data Roaming' for the eSIM line only.
Navigating Tokyo Station — one of the world's most complex rail hubs with 30+ platforms and connections to 13 train lines — is genuinely difficult without reliable data. You need a constant connection for Google Maps real-time platform numbers, HyperDia or Jorudan for train times, and Google Translate for station signs in Japanese. Pocket WiFi rental devices are bulky, need charging, and die at the worst moments — Ovosim installs on your phone and is always on. The Shinkansen (bullet train) from Tokyo to Osaka, Kyoto, and Hiroshima has Ovosim connectivity throughout — KDDI covers the Tokaido Shinkansen corridor with strong 4G/5G for the entire journey.
Narita International (NRT) — Terminal 1, 2, and 3 all have KDDI 4G/5G coverage. Narita WiFi requires registration and is slow. Activate Ovosim before landing to load your Suica card on Apple Wallet immediately — the Suica card is essential for Tokyo trains, buses, and convenience store payments. The Narita Express (N'EX) to Shinjuku takes 90 minutes — book via Klook before landing. Haneda (HND) — closer to central Tokyo (30–40 minutes). Terminal 3 International has KDDI 5G throughout. The Tokyo Monorail and Keikyu Line both connect Haneda to the city — check Google Maps for the fastest route to your hotel.
Shinjuku — one of the world's busiest transport hubs with excellent KDDI 5G throughout including Kabukicho and Golden Gai. Shibuya — Shibuya Crossing, Shibuya 109, and the surrounding area have strong 5G — useful for navigating the recently rebuilt Shibuya station which is notoriously confusing. Akihabara — Electronics district with excellent indoor and outdoor KDDI coverage throughout. Asakusa — Senso-ji Temple and Nakamise Shopping Street have solid 4G/5G. Harajuku and Omotesando — Takeshita Street and the luxury shopping corridor both well covered. Ginza — Tokyo's upmarket shopping district has some of the strongest 5G speeds in the city. Odaiba — the waterfront artificial island has full KDDI coverage including TeamLab Planets and Odaiba beach.
Japan is one of the most rewarding travel destinations in the world — and one of the most challenging for non-Japanese speakers. Restaurant menus, train signs, shop labels, and vending machines are often entirely in Japanese with no English. Google Translate camera mode (point your camera at text for instant translation) uses significant data — roughly 50–100MB per hour of active use. Combined with Google Maps navigation and HyperDia for train times, a typical Tokyo tourist day can consume 500MB–1GB of data. Japan Unlimited plans from Ovosim ensure you never run out mid-translation when trying to order ramen or figure out which exit to take at Shinjuku station.
The Suica card (or its equivalent, Pasmo) is the most important thing to set up on arrival in Japan. It's a contactless IC card that works on every train, subway, bus, and monorail in the Tokyo metro area — and for payments at 7-Eleven, Lawson, FamilyMart, and most vending machines. You need data to add Suica to Apple Wallet or Google Pay. Activate your Ovosim before landing, and add Suica to your wallet on the Narita Express or Keikyu Line into the city. One tap pays for everything — no queuing at ticket machines, no cash needed for transit.
KDDI covers the entire Japan Rail (JR) network for Shinkansen day trips from Tokyo. Kyoto (2h15 by Shinkansen) — excellent KDDI coverage throughout the temple districts including Arashiyama, Fushimi Inari, and Gion. Osaka (2h30) — full KDDI 5G in Dotonbori, Namba, and Umeda. Hiroshima and Miyajima (4h) — covered throughout including the Miyajima ferry crossing. Hakone (90 minutes by Romance Car) — good coverage in Hakone town and at most Mt Fuji viewing points, with some gaps on mountain trails. Nikko (2h by train) — covered in the town and shrine areas. Kamakura (1h by train) — full coverage including the Great Buddha and Enoshima Island.
Download before landing: Google Maps with offline Tokyo map — essential for navigation and train routes. HyperDia or Jorudan for precise train schedules including platform numbers and transfer times. Google Translate with Japanese offline pack downloaded — camera mode for menus and signs. Suica or Pasmo via Apple Wallet or Google Pay. Uber Japan (limited in Tokyo — taxis are widely available and safe). TableCheck or Tabelog for restaurant reservations — many popular Tokyo restaurants require advance booking. 7-Eleven Japan app for finding the nearest 24-hour convenience store, which in Japan serves genuinely excellent food.
Scan the QR code and connect immediately.
Share data with your laptop.
Keep your original number for calls.
OVOSIM offers the best value eSIM for Tokyo starting at €2.99. It connects to Rakuten for 5G speed.
Plans start from €2.99 for 1GB. There are no hidden fees or roaming charges.
Yes, the eSIM activates instantly upon arrival. You will have 5G data immediately.
Ovosim connects to KDDI (au) — one of Japan's top three carriers with excellent 5G coverage throughout Tokyo, on the Shinkansen bullet train network, and across Japan. KDDI has strong indoor coverage in shopping malls, subway stations, and train tunnels.
Yes — KDDI has strong 4G/5G coverage throughout Tokyo subway stations and most tunnel sections. Coverage is excellent at Shinjuku, Shibuya, Akihabara, and all major interchange stations. Signal can drop briefly in some deep tunnel sections on older subway lines.
Yes — KDDI covers the Tokaido Shinkansen corridor (Tokyo to Osaka/Kyoto) with 4G/5G for the majority of the journey. Brief signal drops occur in long tunnels including the sections around Mt Fuji. Download offline maps before boarding for uninterrupted navigation.
Yes for most travelers. Pocket WiFi devices need charging, add weight to your bag, die at inconvenient moments, and must be returned before departure. Ovosim installs on your phone, is always on, never needs separate charging, and doesn't require a return trip to a kiosk.
For most tourists, 5–10GB is sufficient for a one to two week Japan trip. If you use Google Translate camera mode constantly (50–100MB per hour), stream video, or upload content daily, unlimited is worth it. Japan has far less public WiFi than visitors expect, so your eSIM is your primary connection.
Yes — KDDI 4G/5G covers all terminals at both Narita (NRT) and Haneda (HND). Activate before landing to add your Suica card to Apple Wallet or Google Pay immediately on arrival — it works on all trains including the Narita Express and Keikyu Line.
Yes — the same Japan plan covers all of Japan on KDDI. Kyoto, Osaka, Hiroshima, Sapporo, Fukuoka, and all major cities have excellent KDDI 5G. Rural mountain areas and some hiking trails have limited signal — download offline maps before remote hiking.
Yes — Google Translate camera mode works on Ovosim data and is essential in Japan for menus, signs, and labels entirely in Japanese. Download the Japanese offline language pack before flying so translation works even if signal drops temporarily.
For a 7-day Tokyo trip: 5GB covers navigation, translation, messaging, and social media. 10GB gives comfortable room for constant Google Maps, HyperDia, Google Translate camera mode, and video calls. Unlimited is ideal if you're doing multiple Shinkansen day trips or uploading travel content daily.
Yes in Hakone town and at the main Mt Fuji Visitor Center and 5th Station (the most accessible viewing area). Fujisan trail sections above the 7th station have intermittent signal. Download offline maps for any Mt Fuji hiking route before departing Tokyo.
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