Tokyo eSIM
51 Japan plans · from $3.68
Tokyo is one of the most connected cities on earth, but it is also one of the easiest to get lost in — line transfers at Shinjuku and Shibuya are effectively unnavigable without live maps. A travel eSIM activates before you land, so you have data the moment you clear immigration at Haneda or Narita and need to find the right train into town.
Landing at Haneda & Narita (HND / NRT)
Both airports have free Wi-Fi, but the rental-SIM counters at Narita Terminal 1 regularly run 20–40 minute queues at peak arrival times. An eSIM installed at home skips that entirely — switch it on while taxiing.
eSIM plans that cover Tokyo
Tokyo is covered by every Japan plan below — there is no separate city-only eSIM to buy.
Choose a data plan
1 GB
7 days· 0.3 GB per $1
$3.68
5% back in credits
$3.92
5% back in credits
$4.62
5% back in credits
2 GB
15 days· 0.4 GB per $1
$5.70
5% back in credits
3 GB
30 days· 0.4 GB per $1
$7.45
5% back in credits
$8.85
5% back in credits
$8.96
5% back in credits
$10.67
5% back in credits
5 GB
30 days· 0.5 GB per $1
$10.84
5% back in credits
$13.98
5% back in credits
10 GB
30 days· 0.6 GB per $1
$16.51
5% back in credits
$16.69
5% back in credits
$19.01
5% back in credits
$20.92
5% back in credits
$22.73
5% back in credits
20 GB
30 days· 0.8 GB per $1
$26.56
5% back in credits
$26.56
5% back in credits
$31.78
5% back in credits
$32.98
5% back in credits
$39.12
5% back in credits
$45.06
5% back in credits
$46.88
5% back in credits
$63.18
5% back in credits
20 GB
Global - Standard only60 days· 0.2 GB per $1
$90.14
5% back in credits
$93.33
5% back in credits
50 GB
Global - Standard only90 days· 0.2 GB per $1
$212.45
5% back in credits
How “Unlimited” works: Never cut off — each plan gives a set amount of full-speed data, then a slower speed. The exact allowance and speed are shown on every plan.Read more
Unlimited plans never run out and your eSIM is never disconnected, but every one has a fair-use limit: a set amount of full-speed data, after which the speed is reduced. The amounts differ between plans — most give a daily full-speed allowance that refills every 24 hours from when you first activate the eSIM, while Premium plans give a larger allowance for the whole plan instead. Each plan states its own allowance and the speed after it before you buy. At the reduced speed, messaging, maps, email and light browsing still work; video streaming and video calls may not. If you want every gigabyte at full speed, choose a fixed-GB plan.
Which networks you'll be on in Tokyo
Siima eSIMs for Japan ride NTT Docomo and SoftBank. Docomo has the deepest coverage nationwide; SoftBank is marginally faster in central Tokyo. Both give full 4G/5G across all 23 special wards.
Coverage around Tokyo
Metro and JR lines
Tokyo Metro and Toei tunnels have had continuous mobile coverage since 2013, including between stations — you keep data on the Ginza, Marunouchi and Oedo lines mid-tunnel. JR lines are above ground for most of the loop and never drop.
Shibuya, Shinjuku and Akihabara
Dense 5G, but crowd congestion at Shibuya Crossing and during Shinjuku rush hour can slow throughput. Maps and messaging stay fine; large uploads may crawl for a few minutes.
Shinkansen day trips
The Tokaido Shinkansen to Kyoto and Osaka has coverage along nearly the whole route, with brief drops in the longer tunnels. Download offline maps if you plan to work on the train.
Mount Takao and Nikko
The popular day-trip hikes west and north of the city hold signal on the main trails and at the summits. Deeper Okutama valleys are where it finally goes.
How much data you need
A week in Tokyo on maps, translation apps, messaging and the odd video call runs about 3–5 GB. Add 1 GB per day if you stream on the train or upload video.
Work it out with our data usage calculator →