Product info
Tokyo eSIM plans
| 3GB prepaid eSIM · 15 days | $7.49$2.50 / GB | Buy eSIM |
| Ohayu recommends5GB prepaid eSIM · 30 days | $10.49$2.10 / GB | Buy eSIM |
| 10GB prepaid eSIM · 30 days | $16.49$1.65 / GB | Buy eSIM |
| 20GB prepaid eSIM · 30 days | $22.99$1.15 / GB | Buy eSIM |
| 50GB prepaid eSIM · 30 days | $53.99$1.08 / GB | Buy eSIM |
You can install your eSIM before the trip and activate it when you arrive in Japan. Validity starts after eSIM activation.
Plan details
How much mobile data you need
What's the best eSIM for Tokyo?
Tokyo weekend – 3 GB
Enough for transit apps, Google Maps, and posts from Shibuya.
One to two weeks – 5 GB
Navigation, photos and a few calls home. Covers the whole city with ease.
Tokyo + Kyoto + Osaka – 20 GB
The classic Shinkansen trip. One eSIM covers all of Japan.
Remote work – 50 GB
Hotspot for your laptop, video calls and tethering all day.
Coverage and network
Honest about coverage
Japan mobile networks
Japan ranks 68th globally for mobile download speed at 68 Mbps. Tokyo is 81 Mbps download (rank 102 among cities), below London (107 Mbps) and Paris (195 Mbps) on the city index. (Speedtest by Ookla, June 2026)
Speedtest Global Index · Mobile · Tokyo · June 2026
Download
81.02 Mbps
Upload
12 Mbps
Latency
30 ms
Global rank
#102 of 98
Real Tokyo conditions
- Subway & underground malls: Tokyo Metro and Toei lines have extensive in-tunnel coverage, but signal can drop briefly in older, deeper sections between stations. Underground shopping complexes in Shinjuku and Shibuya generally maintain good connectivity.
- High-rise interference: Signal inside certain older high-rise buildings, particularly in concrete-heavy structures in Akihabara and parts of Shinjuku, may be weaker than street level. Moving near a window usually resolves this.
- Crowd congestion at peak times: During Comiket, Golden Week, and major festivals, heavily congested areas like Shibuya Crossing can see temporary slowdowns due to the sheer number of devices on the network. Data speeds typically normalize quickly.
One eSIM, all of Japan
This isn't a Tokyo-only plan - it covers Japan nationwide. Use the same eSIM on the Shinkansen to Kyoto, exploring Hokkaido, or visiting Hiroshima - no swapping, no separate plan needed.
How to install eSIM
Connected in 3 steps
- 01
Buy before you fly
Choose your data plan before your trip.
- 02
Download & install
Log in to your account, tap your eSIM, and follow the on-screen instructions.
- 03
Land & activate
Activate when you arrive in Japan. Turn on roaming for the eSIM and it connects to a local network.
Before you buy, make sure your phone supports eSIM — see Ohayu compatible devices list or dial *#06#. It's a free request to your phone's settings. If you see the EID number — your phone is eSIM-compatible.
Arriving in Tokyo
Free Wi-Fi in Tokyo
Only remembered on the plane? Both Narita and Haneda have free Wi-Fi across all terminals.
Side by side
Tokyo eSIM Comparison
Indicative comparison based on publicly listed Japan plans as of May 6th, 2026. Competitor pricing and policies change - check their sites for current terms.
Frequently asked questions
Where to buy a SIM card in Tokyo?
At Narita (NRT) you can pick up a tourist SIM at the JR East Travel Service Center in T1 or T2 (open 08:30-19:00), or grab one from a Lawson convenience store, or use one of the SIM vending machines that run 24/7. At Haneda (HND) international arrivals, BIC Camera and vending machines are in T3, and SoftBank is in T2. All tourist SIMs in Japan are data-only - no voice calls. You'll need your passport. The airport options are solid, so you can buy on arrival no problem. If you want to skip the step completely, a travel eSIM like Ohayu can connect you to supported networks like NTT Docomo or SoftBank after you land.
Do I need to show ID to buy a SIM card in Tokyo?
Yes. In Japan, you need to show your passport to buy a local SIM card at airport counters or electronics shops like BIC Camera or Sakura Mobile. Starting from April 2026, the Ministry of Internal Affairs and Communications (MIC) announced restrictions for SIMs with phone numbers - those are now sold to users with Residence Cards only, meaning short-stay tourists cannot get a voice SIM at all. This regulation only applies to SIM cards with phone numbers. Tourists can still buy data-only travel eSIMs online without identity verification.
Ohayu does not require ID verification because eSIM plans for Japan are data-only and don't include a local phone number.
Why isn't my eSIM working in Tokyo?
On the deepest Oedo line stretches a short drop is normal. Otherwise it is nearly always one setting - Ohayu chosen for mobile data, roaming allowed - followed by an Airplane mode toggle. If that does not fix it, chat and support@ohayu.com are open 24/7.
