Basic
$6.49
7 days total
- 500 MB a day at full speed
- Then up to 512 kbpsCalls, Reels and maps More about speed →
- IP exit: Singapore
Unlimited data optionsChoose your speedNo registration
Japan · 7 daysTotal prices in USD
Everyday
$8.99
7 days total
- 1 GB a day at full speed
- Then up to 1 MbpsSocial media and video More about speed →
- IP exit: Hong Kong
Extra speed
$13.49
7 days total
- 1 GB a day at full speed
- Then up to 5 MbpsFull HD video and films More about speed →
- IP exit: Hong Kong
All plans (130) ↓
Japan · Total prices in USD. Each plan names the country where its internet traffic exits to the public internet.
| Days | Full speed a day | Speed after the limit | IP exit | Price |
|---|---|---|---|---|
| 1 day | 500 MB | 512 kbps | Singapore | $2.99 $2.99 a day |
| 1 day | 5 GB | 200 kbps | Japan | $2.99 $2.99 a day |
| 1 day | 1 GB | 1 Mbps | Hong Kong | $3.49 $3.49 a day |
| 1 day | 1 GB | 5 Mbps | Hong Kong | $3.99 $3.99 a day |
| 1 day | 30 GB | 200 kbps | Japan | $3.99 $3.99 a day |
| 1 day | 2 GB | 1 Mbps | Hong Kong | $4.49 $4.49 a day |
| 1 day | 1 GB | 10 Mbps | Singapore | $4.99 $4.99 a day |
| 1 day | 2 GB | 5 Mbps | Singapore | $5.99 $5.99 a day |
| 1 day | 100 GB | 200 kbps | Japan | $6.99 $6.99 a day |
| 3 days | 500 MB | 512 kbps | Singapore | $4.49 $1.50 a day |
| 3 days | 1 GB | 1 Mbps | Hong Kong | $5.49 $1.83 a day |
| 3 days | Unlimited at up to 10 Mbps | — | — | $6.49 $2.16 a day |
| 3 days | 1 GB | 5 Mbps | Hong Kong | $6.99 $2.33 a day |
| 3 days | 30 GB | 128 kbps | Japan | $6.99 $2.33 a day |
| 3 days | 2 GB | 10 Mbps | Japan | $8.49 $2.83 a day |
| 3 days | 2 GB | 1 Mbps | Hong Kong | $8.99 $3.00 a day |
| 3 days | Unlimited at full speed | — | — | $9.49 $3.16 a day |
| 5 days | 500 MB | 512 kbps | Singapore | $5.49 $1.10 a day |
| 5 days | 1 GB | 1 Mbps | Hong Kong | $6.99 $1.40 a day |
| 5 days | 1 GB | 5 Mbps | Hong Kong | $9.99 $2.00 a day |
| 5 days | 10 GB | 200 kbps | Japan | $9.99 $2.00 a day |
| 5 days | Unlimited at up to 10 Mbps | — | Japan | $13.49 $2.70 a day |
| 5 days | 2 GB | 10 Mbps | Japan | $13.49 $2.70 a day |
| 5 days | Unlimited at full speed | — | — | $13.99 $2.80 a day |
| 7 days | 500 MB | 512 kbps | Singapore | $6.49 $0.93 a day |
| 7 days | 1 GB | 128 kbps | Japan | $6.49 $0.93 a day |
| 7 days | 1 GB | 1 Mbps | Hong Kong | $8.99 $1.28 a day |
| 7 days | 1 GB | 5 Mbps | Hong Kong | $13.49 $1.93 a day |
| 7 days | 10 GB | 200 kbps | Japan | $13.49 $1.93 a day |
| 7 days | 2 GB | 10 Mbps | Japan | $17.49 $2.50 a day |
| 7 days | Unlimited at full speed | — | — | $18.49 $2.64 a day |
| 7 days | Unlimited at full speed | — | Japan | $19.99 $2.86 a day |
| 10 days | 500 MB | 512 kbps | Singapore | $8.49 $0.85 a day |
| 10 days | 1 GB | 128 kbps | Japan | $8.49 $0.85 a day |
| 10 days | 1 GB | 256 kbps | — | $8.49 $0.85 a day |
| 10 days | 5 GB | 200 kbps | Japan | $10.99 $1.10 a day |
| 10 days | 1 GB | 1 Mbps | Hong Kong | $11.99 $1.20 a day |
| 10 days | Unlimited at up to 10 Mbps | — | — | $17.99 $1.80 a day |
| 10 days | 1 GB | 5 Mbps | Hong Kong | $18.49 $1.85 a day |
| 10 days | 10 GB | 200 kbps | Japan | $18.99 $1.90 a day |
| 10 days | 2 GB | 10 Mbps | Japan | $23.49 $2.35 a day |
| 10 days | 2 GB | 1 Mbps | Hong Kong | $23.49 $2.35 a day |
| 10 days | Unlimited at full speed | — | — | $24.49 $2.45 a day |
| 15 days | 1 GB | 128 kbps | Japan | $10.99 $0.73 a day |
| 15 days | 1 GB | 256 kbps | — | $10.99 $0.73 a day |
| 15 days | 500 MB | 512 kbps | Singapore | $11.49 $0.77 a day |
| 15 days | 5 GB | 200 kbps | Japan | $15.99 $1.07 a day |
| 15 days | 1 GB | 1 Mbps | Hong Kong | $17.49 $1.17 a day |
| 15 days | 1 GB | 5 Mbps | Hong Kong | $26.99 $1.80 a day |
| 15 days | 10 GB | 200 kbps | Japan | $27.99 $1.87 a day |
| 15 days | 2 GB | 1 Mbps | Hong Kong | $34.49 $2.30 a day |
| 15 days | Unlimited at full speed | — | — | $34.99 $2.33 a day |
| 15 days | 2 GB | 5 Mbps | Hong Kong | $37.99 $2.53 a day |
| 15 days | 1 GB | 10 Mbps | Singapore | $38.99 $2.60 a day |
| 15 days | 2 GB | 10 Mbps | Hong Kong | $45.49 $3.03 a day |
| 20 days | 500 MB | 512 kbps | Singapore | $14.49 $0.72 a day |
| 20 days | 1 GB | 256 kbps | — | $14.49 $0.72 a day |
| 20 days | 5 GB | 200 kbps | Japan | $20.99 $1.05 a day |
| 20 days | 1 GB | 1 Mbps | Hong Kong | $21.99 $1.10 a day |
| 20 days | 30 GB | 200 kbps | Japan | $31.49 $1.57 a day |
| 20 days | 30 GB | 128 kbps | Japan | $40.99 $2.05 a day |
| 20 days | 2 GB | 1 Mbps | Hong Kong | $43.49 $2.17 a day |
| 20 days | Unlimited at full speed | — | — | $45.99 $2.30 a day |
| 20 days | 2 GB | 5 Mbps | Hong Kong | $50.49 $2.52 a day |
| 20 days | 2 GB | 10 Mbps | Hong Kong | $59.99 $3.00 a day |
| 30 days | 1 GB | 128 kbps | Japan | $19.99 $0.67 a day |
| 30 days | 500 MB | 384 kbps | Hong Kong | $20.49 $0.68 a day |
| 30 days | 500 MB | 512 kbps | Singapore | $20.99 $0.70 a day |
| 30 days | 1 GB | 1 Mbps | Hong Kong | $31.99 $1.07 a day |
| 30 days | 1 GB | 5 Mbps | Hong Kong | $42.99 $1.43 a day |
| 30 days | 2 GB | 1 Mbps | Hong Kong | $62.99 $2.10 a day |
| 30 days | 2 GB | 5 Mbps | Hong Kong | $64.49 $2.15 a day |
| 30 days | 1 GB | 10 Mbps | Singapore | $65.99 $2.20 a day |
| 30 days | 2 GB | 10 Mbps | Hong Kong | $76.99 $2.57 a day |
| 31 days | Unlimited at full speed | — | — | $70.99 $2.29 a day |
| 31 days | Unlimited at full speed | — | Japan | $90.99 $2.94 a day |
| Days | Data | IP exit | Price |
|---|---|---|---|
| 1 day | 502 MB | United Kingdom / European Union | $3.99 $3.99 a day |
| 4 days | 12 GB | Japan | $8.49 $2.12 a day |
| 7 days | 1 GB | Hong Kong | $3.49 $0.50 a day |
| 7 days | 1 GB | Japan | $3.49 $0.50 a day |
| 7 days | 1 GB | Singapore | $3.49 $0.50 a day |
| 7 days | 1 GB | United Kingdom | $4.99 $0.71 a day |
| 7 days | 1 GB | United Kingdom / European Union | $4.99 $0.71 a day |
| 7 days | 3 GB | United Kingdom / European Union | $8.99 $1.28 a day |
| 7 days | 21 GB | Japan | $12.99 $1.86 a day |
| 7 days | 30 GB | United Kingdom / European Union | $37.99 $5.43 a day |
| 10 days | 100 GB | Japan | $31.49 $3.15 a day |
| 15 days | 2 GB | Hong Kong | $3.99 $0.27 a day |
| 15 days | 2 GB | United Kingdom | $6.99 $0.47 a day |
| 15 days | 2 GB | United Kingdom / European Union | $10.49 $0.70 a day |
| 15 days | 5 GB | United Kingdom / European Union | $13.99 $0.93 a day |
| 15 days | 30 GB | Hong Kong | $14.99 $1.00 a day |
| 15 days | 30 GB | Singapore | $18.99 $1.27 a day |
| 15 days | 45 GB | United Kingdom / European Union | $53.49 $3.57 a day |
| 15 days | 50 GB | Hong Kong | $22.99 $1.53 a day |
| 15 days | 50 GB | Singapore | $27.99 $1.87 a day |
| 30 days | 3 GB | Hong Kong | $4.49 $0.15 a day |
| 30 days | 3 GB | Japan | $4.49 $0.15 a day |
| 30 days | 3 GB | Singapore | $4.99 $0.17 a day |
| 30 days | 3 GB | United Kingdom | $9.49 $0.32 a day |
| 30 days | 5 GB | Hong Kong | $5.49 $0.18 a day |
| 30 days | 5 GB | Japan | $5.49 $0.18 a day |
| 30 days | 5 GB | Singapore | $6.49 $0.22 a day |
| 30 days | 5 GB | United Kingdom | $13.99 $0.47 a day |
| 30 days | 10 GB | Japan | $6.99 $0.23 a day |
| 30 days | 10 GB | Hong Kong | $7.49 $0.25 a day |
| 30 days | 10 GB | Singapore | $8.99 $0.30 a day |
| 30 days | 10 GB | United Kingdom / European Union | $24.99 $0.83 a day |
| 30 days | 10 GB | United Kingdom | $27.49 $0.92 a day |
| 30 days | 15 GB | United Kingdom / European Union | $33.49 $1.12 a day |
| 30 days | 20 GB | Japan | $11.49 $0.38 a day |
| 30 days | 20 GB | Hong Kong | $11.99 $0.40 a day |
| 30 days | 20 GB | Singapore | $14.99 $0.50 a day |
| 30 days | 20 GB | United Kingdom / European Union | $43.49 $1.45 a day |
| 30 days | 20 GB | United Kingdom | $53.49 $1.78 a day |
| 30 days | 30 GB | Japan | $15.49 $0.52 a day |
| 30 days | 30 GB | Hong Kong | $15.99 $0.53 a day |
| 30 days | 30 GB | Singapore | $20.99 $0.70 a day |
| 30 days | 30 GB | United Kingdom / European Union | $63.99 $2.13 a day |
| 30 days | 50 GB | Japan | $23.49 $0.78 a day |
| 30 days | 50 GB | Hong Kong | $24.49 $0.82 a day |
| 30 days | 50 GB | Singapore | $31.49 $1.05 a day |
| 30 days | 70 GB | United Kingdom / European Union | $82.99 $2.77 a day |
| 45 days | 100 GB | Japan | $40.99 $0.91 a day |
| 90 days | 3 GB | Japan | $6.99 $0.08 a day |
| 90 days | 5 GB | Japan | $9.49 $0.11 a day |
| 90 days | 10 GB | Japan | $14.99 $0.17 a day |
| 90 days | 30 GB | Japan | $17.99 $0.20 a day |
| 90 days | 50 GB | Japan | $28.99 $0.32 a day |
| 180 days | 50 GB | Japan | $44.99 $0.25 a day |
Compare prices and services: travel eSIMs and carriers
Comparison for Japan Read the full comparison →
| Provider | Lempart Flex | Airalo (opens in a new tab) | Saily (opens in a new tab) | Ubigi (opens in a new tab) | Holafly (opens in a new tab) | Yesim (opens in a new tab) | US and Canadian carriersT-Mobile Day Pass: $10 a day Verizon TravelPass: $12 a day AT&T International Day Pass: $12 a day Bell Roam Better: CA$16 a day TELUS Easy Roam: CA$18 a day A day pass is charged for every day you use your phone abroad. | ||
|---|---|---|---|---|---|---|---|---|---|
| Japan Basic 512 kbps | Japan Everyday 1 Mbps | Japan Extra speed 5 Mbps | |||||||
| Unlimited · 7 days | $6.49 | $8.99 | $13.49 | $26.50 | $26.99 | — | $27.50 | $29.40 | $70– |
| Unlimited · 30 days | $20.99 | $31.99 | $42.99 | $69.00 | $71.99 | $65.00 | $73.90 | $66.00 | $300– |
| 10 GB · 30 days | $6.99 | $18.00 | $17.99 | $16.50 | — | $19.20 | — | ||
| Full speed a day | 500 MB | 1 GB | 1 GB | 3 GB | 5 GB | 60 GB in total | Limits not disclosedHolafly's own FAQ says some operators apply a fair usage policy that may reduce speed after "a certain high-speed data limit", but does not disclose how much data that is or what speed it drops to. You cannot know in advance when your connection may slow down. Every Lempart Flex plan states both before you pay. | Limits not disclosedYesim's own help page says the operator may reduce the network speed until your daily or monthly cycle resets, but does not disclose after how much data or to what speed. You cannot know in advance when your connection may slow down. Every Lempart Flex plan states both before you pay. | 2–5 GB |
| Speed after the limitAfter the daily full-speed data, the lower speed still lets you use many services comfortably. Learn more about speeds → | 512 kbps | 1 Mbps | 5 Mbps | 1 Mbps | 1 Mbps | 2 Mbps | 128 kbps / 3G | ||
| Hotspot | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | Up to 1 GB a day | Depends on the network | T-Mobile onlyOnly T-Mobile says on its own pass page that the pass works as a hotspot; Verizon, AT&T, Bell, Telus do not say it on theirs. |
| Choose your IP countryJapan: online via Singapore, Hong Kong or Japan — your pick. The country where your internet traffic exits to the public internet. It is not a VPN or a fixed IP address, and an app may still place you elsewhere. What is an IP exit? → | ✓ | ✓ | ✓ | ✗ | ✗ | ✓Ubigi lets you switch to an IP address of your country of residence — only for residents of France, Canada, Belgium, Japan, Australia, the United States, Germany, Switzerland, Singapore and the United Kingdom (its own IP page). Lempart Flex lets every traveller choose the IP country, from more countries and in many more destinations. | ✗ | ✗ | ✗ |
| No account needed | ✓ | ✓ | ✓ | ✗ | ✗Saily: its help pages say you create an account (Google, Apple or Microsoft sign-in) to start using the eSIM. | ✓Ubigi: no account needed to buy on its website; its app asks you to create one. | ✓Holafly: its own pages say you can buy as a guest; an account is set up with the email you use. | ✗Yesim: its purchase steps begin with logging in to a Yesim account. | ✗ |
| Cashback and rewards | 10% back on every purchase | 10% back on every purchase | 10% back on every purchase | ✓ | ✓ | — | ✓ | ✓ | — |
| Provider | 7 days | 30 days | 10 GB |
|---|---|---|---|
| Lempart FlexJapan Basic · 500 MB → 512 kbps | $6.49 | $20.99 | $6.99 |
| Lempart FlexJapan Everyday · 1 GB → 1 Mbps | $8.99 | $31.99 | $6.99 |
| Lempart FlexJapan Extra speed · 1 GB → 5 Mbps | $13.49 | $42.99 | $6.99 |
| Airalo3 GB → 1 Mbps | $26.50 | $69.00 | $18.00 |
| Saily5 GB → 1 Mbps | $26.99 | $71.99 | $17.99 |
| Ubigi60 GB in total → 2 Mbps | — | $65.00 | $16.50 |
| HolaflyLimits not disclosed | $27.50 | $73.90 | — |
| YesimLimits not disclosed | $29.40 | $66.00 | $19.20 |
| US and Canadian carriers2–5 GB → 128 kbps / 3G | $70– | $300– | — |
- ✓ Choose your IP country
- ✓ No account needed
- ✓ Hotspot
- Cashback and rewards: 10% back on every purchase
Japan, unlimited data for 30 days — Lempart Flex: Basic $20.99 (512 kbps after the daily amount), Everyday $31.99 (1 Mbps), Extra speed $42.99 (5 Mbps). Other travel eSIMs named here charge $65.00–$73.90.
✓ yes · ✗ no · — not stated on the provider's own pages. For another provider, ✗ means its own pages did not offer it when we checked. Prices checked October 25, 2026. Sources: airalo.com, the providers' own websites, the carriers' own websites. Converted at today's exchange rate. Taxes may apply. Plans differ in full-speed data and the speed after it — read each provider's terms before you buy.
Travelling beyond Japan?
These plans also include Japan.
China, Japan & South Korea · 3 countries
Japan · China · South Korea
Unlimited · 7 days · from $10.49then up to 384 kbps
China, Japan & South Korea · 3 countries
No country in this plan matches that.
Global · 100 countries
Japan · Albania · Algeria +97 more
Unlimited · 7 days · from $23.49then up to 512 kbps
Global · 100 countries
No country in this plan matches that.
Asia · 14 countries
Japan · Bangladesh · Cambodia +11 more
Unlimited · 7 days · from $11.49then up to 1 Mbps
Asia · 14 countries
No country in this plan matches that.
Europe & Asia · 54 countries
Japan · Austria · Belgium +51 more
Unlimited · 7 days · from $15.49then up to 5 Mbps
Europe & Asia · 54 countries
No country in this plan matches that.
Asia · 19 countries
Japan · Bangladesh · China +16 more
Unlimited · 7 days · from $16.99then up to 384 kbps
Asia · 19 countries
No country in this plan matches that.
Asia · 21 countries
Japan · Armenia · Bangladesh +18 more
Unlimited · 7 days · from $18.49then up to 512 kbps
Asia · 21 countries
No country in this plan matches that.
Asia · 12 countries · 10 Mbps
Japan · China · Hong Kong +9 more
Unlimited · 7 days · from $20.49then up to 10 Mbps
Asia · 12 countries · 10 Mbps
No country in this plan matches that.
Asia · 16 countries
Japan · Bangladesh · Cambodia +13 more
Unlimited · 7 days · from $24.49then up to 5 Mbps
Asia · 16 countries
No country in this plan matches that.
Global · 67 countries
Japan · Australia · Austria +64 more
Unlimited · 7 days · from $24.49then up to 5 Mbps
Global · 67 countries
No country in this plan matches that.
Asia · 12 countries · 384 kbps
Japan · Cambodia · China +9 more
Unlimited · 7 days · from $24.99then up to 384 kbps
Asia · 12 countries · 384 kbps
No country in this plan matches that.
Asia-Pacific · 11 countries
Japan · Australia · Cambodia +8 more
Unlimited · 7 days · from $26.99then up to 5 Mbps
Asia-Pacific · 11 countries
No country in this plan matches that.
Asia · 28 countries
Japan · Australia · Bangladesh +25 more
Unlimited · 7 days · from $28.99then up to 5 Mbps
Asia · 28 countries
No country in this plan matches that.
Global · 117 countries
Japan · Albania · Argentina +114 more
Unlimited · 7 days · from $43.99then up to 384 kbps
Global · 117 countries
No country in this plan matches that.
Global · 169 countries
Japan · Albania · Algeria +166 more
Unlimited · 7 days · from $50.99then up to 512 kbps
Global · 169 countries
No country in this plan matches that.
Global · 107 countries
Japan · Albania · Algeria +104 more
Unlimited · 7 days · from $55.49then up to 5 Mbps
Global · 107 countries
No country in this plan matches that.
Asia-Pacific · 10 countries
Japan · Australia · Indonesia +7 more
Fixed data · 1 GB · 7 days · $3.49
Asia-Pacific · 10 countries
No country in this plan matches that.
Asia · 15 countries
Japan · Cambodia · China +12 more
Fixed data · 0.5 GB · 1 day · $4.49
Asia · 15 countries
No country in this plan matches that.
Asia · 20 countries
Japan · Australia · Cambodia +17 more
Fixed data · 1 GB · 7 days · $5.49
Asia · 20 countries
No country in this plan matches that.
Japan & South Korea · 2 countries
Japan · South Korea
Fixed data · 3 GB · 30 days · $6.49
Japan & South Korea · 2 countries
No country in this plan matches that.
Global · 127 countries
Japan · Åland Islands · Albania +124 more
Fixed data · 1 GB · 7 days · $9.49
Global · 127 countries
No country in this plan matches that.
Global · 114 countries
Japan · Åland Islands · Albania +111 more
Fixed data · 3 GB · 30 days · $10.49
Global · 114 countries
No country in this plan matches that.
Global · 90 countries
Japan · Albania · Algeria +87 more
Fixed data · 5 GB · 365 days · $14.99
Global · 90 countries
No country in this plan matches that.
Global · 119 countries
Japan · Afghanistan · Albania +116 more
Fixed data · 10 GB · 30 days · $35.99
Global · 119 countries
No country in this plan matches that.
Allowances, speeds and networks differ by plan
Know your connection
Local networks
NTT Docomo (5G), SoftBank (5G), NTT docomo (5G), Rakuten Mobile (5G), KDDI/au (5G), KDDI (5G), Softbank (5G), DOCOMO (5G)
What is included
Data only — no phone number, calls or SMS. Your own number keeps working on your home SIM.
Personal hotspot
Every plan here includes personal hotspot, so you can share your data with a laptop or tablet. It uses the same data as your phone, and several devices at once divide the speed.
Plans and lengths
Plans from 1 to 180 days, from $2.99. Install the eSIM at home on Wi-Fi. Each plan shows when it starts and how long it lasts before you pay.
Carrier maps show estimated coverage. Your eSIM’s roaming access, device, terrain and network conditions can affect service.
Unlimited, clearly explained
Made for travel: maps and ride apps the moment you land, WhatsApp and video calls with home, photos and social media on the go. Your home number stays on your own SIM for calls and texts.
Full speed, then continued data
Every unlimited plan here gives a set amount of data at full speed each day (500 MB a day · 1 GB a day · 2 GB a day · 5 GB a day · 10 GB a day · 30 GB a day · 100 GB a day), then keeps going at a lower speed until the next day (128 kbps · 200 kbps · 256 kbps · 384 kbps · 512 kbps · 1 Mbps · 5 Mbps · 10 Mbps). The data does not run out before the plan ends.
Plans marked “No daily limit” are the exception: no daily amount, the same speed for the whole plan.
- 128 kbps — Messages, email and maps
- 200 kbps — Messages, email and maps
- 256 kbps — Messages, email and maps
- 384 kbps — Messages, email and maps
- 512 kbps — Calls, Reels and maps
- 1 Mbps — Social media and video
- 5 Mbps — Full HD video and films
- 10 Mbps — Full HD on several devices
Fixed-data plans (502 MB · 1 GB · 2 GB · 3 GB · 5 GB · 10 GB · 12 GB · 15 GB · 20 GB · 21 GB · 30 GB · 45 GB · 50 GB · 70 GB · 100 GB) suit people who know how much data they need.
What is an IP exit?
The country where your internet traffic exits to the public internet. It is not a VPN or a fixed IP address, and an app may still place you elsewhere.
IP exits you can choose here: Hong Kong · Japan · Singapore · UK/EU (fixed-data plans only) · United Kingdom (fixed-data plans only)
Ready before you travel
Check your phone
eSIM-compatible and carrier-unlocked.
Check device compatibilityInstall on Wi-Fi
Follow your order's device-specific guide.
Connect on arrival
Follow your selected plan's activation rules.
Questions about Japan
View all FAQs →What is the cheapest unlimited data plan for Japan?
Our cheapest is Basic — from $2.99 for 1 day, and $20.99 for 30 days (500 MB at full speed a day, then up to 512 kbps).
How much does an eSIM for Japan cost?
Unlimited data: 1 day from $2.99, 7 days from $6.49, 15 days from $11.49, and 30 days from $20.49. Fixed data: 1 day from $3.99, 7 days from $3.49, 15 days from $3.99, and 30 days from $4.49. Each price is the total for the whole plan. With unlimited data you choose the speed after your daily full-speed amount: pay less for slower, more for faster.
Which networks does the eSIM use in Japan?
Plans for Japan run on these networks: KDDI, SoftBank, and NTT Docomo. Each plan names its own networks before you pay.
Why might ChatGPT, Netflix or your bank app act up in Japan — and what helps?
Many apps judge your country by where your connection appears to come from — the plan’s IP location — rather than by where you are standing. Through a Hong Kong IP, ChatGPT and Claude usually don’t open, because Hong Kong is not on their lists of supported countries; Gemini and Copilot usually do. Through Singapore, United Kingdom, and Japan, ChatGPT, Claude and Gemini are usually available. Streaming catalogues such as Netflix usually follow the country your connection appears to be in, so some titles might differ from home. Your bank might ask for an extra check when you sign in from abroad: set up app-based security codes before you go, and keep your own SIM on for text messages. Each plan names its IP location before you pay, and “Choose your IP” lets you pick another. Each app decides for itself, so the choice is yours.
The apps travellers rely on in Japan — and how to set them up before you land
Travellers in Japan often use LINE (messages), GO (taxi), Suica (trains and shops), NAVITIME or Japan Transit Planner (train routes), and Tabelog (restaurants). Local apps usually care more about your phone number, payment card and app-store country than about your IP location, so install them at home before you fly.
Which IP locations can I choose for Japan?
Plans for Japan are sold with these IP locations: Singapore, UK/EU (fixed-data plans only), Hong Kong, Japan, and United Kingdom (fixed-data plans only). Each plan names its own, and "Choose your IP" lists them with their prices.
What does unlimited mean on a Lempart Flex plan?
It never runs out and it never stops. Each day a set amount — 500 MB a day on this plan — runs at full speed; after that the connection keeps working at a reduced speed for the rest of that day, and the full speed comes back the next day. There is no extra charge and nothing to top up. The reduced speed on this plan is 384 kbps.
When do the days start counting?
When the eSIM first connects to a network at the destination — not when you buy it and not when you install it. That is why installing at home on wifi is the easy way: you land already online.
Does this include a phone number, calls or SMS?
No. It is mobile data only. Your own number stays on your own SIM and keeps working normally, so calls and messages still reach you; to avoid your home operator charging you for roaming data, switch mobile data over to this eSIM and leave your own line on for calls.
Do I need an account to buy?
No. On this website an email address is all that is asked for — no name, no phone number, no password, no account. The eSIM and the receipt arrive by email, and the order number plus the last four digits of the ICCID do everything an account would: check what is left, ask for a refund, report a problem.
What happens when the days run out?
The eSIM stops carrying data and nothing further is charged. Some plans here can have days added later — the plan says so on its own details; for the rest, buying again is the way to carry on.
Can I share the connection over a personal hotspot?
Yes, on every plan. Whatever your laptop, tablet or second phone uses counts toward the same data as your phone: on an unlimited plan, the full-speed data for the day comes first, and after it the plan keeps going at its stated speed. Several devices connected at once divide the speed between them.
Will it work on my phone?
The phone has to support eSIM and must not be locked to one operator. Most phones sold in the last few years do; a locked phone will refuse the eSIM even though everything else is correct.
Need help choosing?
We usually reply within one working day. Refund policy