1. Before You Start: What This Card Can Do
If you didn't read carefully before buying, this part matters most
| Features | Supported? |
|---|
| Mobile data (incl. roaming outside Japan) | Supported |
| Receiving SMS (verification codes, etc.) | Supported |
| Sending SMS | Not supported |
| Making / receiving calls | Not supported |
⚠️ This is a data + SMS-receiving card with no calling feature. If you need to make calls, it's not for you — please contact support before ordering.
2. Inserting the Card
Plug-and-play in supported countries and regions — no activation, no real-name verification
📲 Bought the eSIM version? Skip step 1 (inserting the card) — support will send you an install QR code via WeChat.
On your phone go to "Settings → Cellular / SIM → Add eSIM" and scan it; steps 2–4 are then exactly the same.
Support guides you through the whole installation.
⚠️ eSIM works only with overseas phones that have native eSIM (HK / US / JP iPhone, Google Pixel, etc.);
mainland-China models do not support it, and it cannot be written to blank cards like esim.me / 5ber.
If you don't have an overseas phone with native eSIM, use the physical SIM version instead.
1
Power off and insert the SIM
Remove the tray, insert the SIM in the correct orientation, then power on. The card is a standard 3-in-1; snap it to your phone's tray size.
2
You'll see signal once the card is inserted
After powering on, signal and 4G/5G appear in the status bar automatically. If there's no signal: turn Airplane Mode on for about 3 seconds then off, so the phone re-registers — the most common fix when switching networks across borders.
3
To get online → turn on Data Roaming
This step is required, or you won't get online.
iPhone: Settings → Cellular → select this SIM → turn on Data Roaming
Android: Settings → Mobile network / SIM management → select this SIM → turn on Data Roaming
4
Confirm you're connected
Open any website or app to test. If it loads, you're online. Most phones configure the APN automatically; if it still won't connect after a few minutes, ask support for the APN settings and enter them manually.
⏱ Usually registers on the network within 1–5 minutes of powering on. Cross-border switching can be a bit slower — try toggling Airplane Mode once.
3. Data Allowance & Speed Limits
Resets monthly; stays connected past the cap, just slower
| Regions | High-speed data per month |
|---|
| Inside Japan | 3GB / month |
| Outside Japan (incl. China) | 1GB / month |
| After the high-speed allowance | Low-speed network, text chat only |
💡 Past the high-speed cap you stay connected but drop to a low-speed network, text chat only; receiving SMS codes still works. Maps, video and file downloads are effectively unusable.
Supported countries / regions
The following countries and regions can use the 1GB/month high-speed data abroad (Japan is not counted here).
ChinaHong KongMacauTaiwanIcelandIrelandUnited States (Hawaii)Continental United StatesUnited Arab EmiratesAndorraUnited KingdomItalyIndiaIndonesiaEstoniaAustraliaAustriaNetherlandsQatarCanadaCambodiaSouth KoreaCyprusGreeceGuadeloupeGuamKuwaitCroatiaSaipanGibraltarSingaporeSwitzerlandSwedenSpainSlovakiaSloveniaThailandCzech RepublicDenmarkGermanyTurkeyNew ZealandNorwayHungaryPhilippinesFinlandBrazilFranceFrench GuianaBulgariaVietnamPeruBelgiumPolandPortugalMaltaMartiniqueMalaysiaSouth AfricaMyanmarMexicoMoroccoLatviaLithuaniaLiechtensteinRomaniaLuxembourgRéunionRussia
💡 The list is provided by the issuer and may change; if unsure before you travel, ask support to confirm.
4. About the Number
This card provides a Japanese 070-prefix mobile number (international format +81 70 ××××××××).
The number is printed on the card packaging; if you can't find or read it, contact the "Support" widget at the bottom right and we'll look it up.
⚠️ We don't recommend using it to receive SMS from mainland +86 numbers. Chinese carriers often block messages to and from overseas numbers and may trigger anti-fraud controls.
5. Verified SMS-Verification Platforms
Verified by users — safe to use for registration / login verification
Telegram✓ Verified
WhatsApp✓ Verified
ChatGPT✓ Verified
X (Twitter)✓ Verified
TikTok✓ Verified
Signal✓ Verified
Google✓ Verified
Discord✓ Verified
Apple✓ Verified
PayPal (Japan)✓ Verified
PayPal (US)✓ Verified
LINE✓ Verified
💡 The list isn't exhaustive. If you find another platform that works, tell support and we'll keep this list updated; if one fails, let us know and we'll help investigate.
6. Can't Receive Verification Codes?
- First confirm you have signal and can get online (see step 2 above)
- Check that the platform supports sending SMS to Japanese 070-prefix numbers — some block virtual ranges or specific carriers
- Enter numbers in international format: country code
+81 plus the number without the leading 0
- If you're behind a proxy / VPN, try a cleaner IP — the most common cause
- Wait a few minutes and resend; some platforms' SMS gateways are delayed
- Still stuck? Contact support and we'll help determine whether it's the card or the platform
7. Can't Get Online?
- Make sure Data Roaming is on — the most common cause
- Make sure this SIM is set as the card for mobile data (easy to get wrong on dual-SIM phones)
- Toggle Airplane Mode once, or restart your phone, to re-register on the network
- Enter the APN manually (ask support for the settings)
- Make sure your phone isn't carrier-locked (operator-branded phones may not accept other carriers' SIMs)
- If none of the above works, contact the "Support" widget at the bottom right and we'll help troubleshoot remotely
8. Validity & Renewal
Unused cards don't start counting; the clock starts when you use it
Valid for 12 months from the month of first use. Example: first used in January 2026 → expires January 31, 2027 (month of use + 12 months).
The card fee covers the entire first year, with no monthly fee and no other charges. We'll contact you a month before expiry; choose either method:
- Option A (recommended): renew through us — ¥289 for a year, pay via WeChat / Alipay; just contact the "Support" widget at the bottom right
- Option B: renew directly on the official Japanese site — price as listed there (billed in JPY, requires an overseas payment method) — fitsimmarket.benefitjapan.co.jp
- Renew the same card to keep the same number, with no need to swap cards