Roamlinx · Trusted Poland eSIM Marketplace
eSIM Japan – travel internet without roaming
Buy the Japan eSIM online – instant email delivery, QR activation, no roaming fees.
Stay connected effortlessly with our flexible data plans
Instant email delivery · QR setup in 3–5 min · Keep your number · Secure checkout (Stripe/PayPal)
Key Information
- ✓ Japan eSIM ready in 3 minutes
- ✓ No contract, no hidden fees
- ✓ Keep your WhatsApp number
Network Coverage
- ✓ Auto-connects to best network
- ✓ Strong coverage in cities and main routes
- ✓ LTE/5G where available
Who it's for
- ✓ Travelers to Japan
- ✓ Remote work, maps, streaming
- ✓ Hotspot for laptop or family
Why eSIM
- ✓ No physical SIM card
- ✓ Instant activation
- ✓ Buy online, QR by email
Choose your Japan eSIM plan
Buy → Scan QR → Connect when you arrive.
NTT docomo (5G)
Rakuten Mobile (5G)
KDDI/au (5G)
SoftBank (5G)
NTT docomo (5G)
Rakuten Mobile (5G)
KDDI/au (5G)
SoftBank (5G)
Unlimited after use – 384 Kbps
KDDI/au (5G)
Unlimited after use – 512 Kbps
NTT docomo (4G)
Unlimited after use – 256 Kbps
NTT docomo (5G)
Rakuten Mobile (5G)
KDDI/au (5G)
SoftBank (5G)
NTT docomo (5G)
Rakuten Mobile (5G)
KDDI/au (5G)
SoftBank (5G)
Unlimited after use – 384 Kbps
KDDI/au (5G)
Unlimited after use – 512 Kbps
NTT docomo (4G)
Unlimited after use – 256 Kbps
NTT docomo (5G)
Rakuten Mobile (5G)
KDDI/au (5G)
SoftBank (5G)
Unlimited after use – 1 Mbps
NTT docomo (5G)
Rakuten Mobile (5G)
KDDI/au (5G)
SoftBank (5G)
KDDI/au (5G)
NTT docomo (4G)
NTT docomo (5G)
Rakuten Mobile (5G)
KDDI/au (5G)
SoftBank (5G)
Unlimited after use – 384 Kbps
KDDI/au (5G)
Unlimited after use – 512 Kbps
NTT docomo (4G)
Unlimited after use – 256 Kbps
NTT docomo (5G)
Rakuten Mobile (5G)
KDDI/au (5G)
SoftBank (5G)
Unlimited after use – 1 Mbps
NTT docomo (5G)
Rakuten Mobile (5G)
KDDI/au (5G)
SoftBank (5G)
Unlimited after use – 384 Kbps
KDDI/au (5G)
Unlimited after use – 512 Kbps
NTT docomo (4G)
Unlimited after use – 256 Kbps
KDDI/au (5G)
Unlimited after use – 1 Mbps
NTT docomo (5G)
Rakuten Mobile (5G)
KDDI/au (5G)
SoftBank (5G)
Unlimited after use – 1 Mbps
NTT docomo (5G)
Rakuten Mobile (5G)
KDDI/au (5G)
SoftBank (5G)
KDDI/au (5G)
NTT docomo (4G)
NTT docomo (5G)
Rakuten Mobile (5G)
KDDI/au (5G)
SoftBank (5G)
NTT docomo (4G)
KDDI/au (5G)
NTT docomo (5G)
Rakuten Mobile (5G)
KDDI/au (5G)
SoftBank (5G)
Unlimited after use – 384 Kbps
KDDI/au (5G)
Unlimited after use – 512 Kbps
NTT docomo (5G)
Rakuten Mobile (5G)
KDDI/au (5G)
SoftBank (5G)
KDDI/au (5G)
NTT docomo (4G)
NTT docomo (5G)
Rakuten Mobile (5G)
KDDI/au (5G)
SoftBank (5G)
Unlimited after use – 384 Kbps
KDDI/au (5G)
Unlimited after use – 512 Kbps
NTT docomo (5G)
Rakuten Mobile (5G)
KDDI/au (5G)
SoftBank (5G)
KDDI/au (5G)
NTT docomo (4G)
NTT docomo (5G)
Rakuten Mobile (5G)
KDDI/au (5G)
SoftBank (5G)
KDDI/au (5G)
NTT docomo (4G)
NTT docomo (5G)
Rakuten Mobile (5G)
KDDI/au (5G)
SoftBank (5G)
NTT docomo (4G)
NTT docomo (5G)
Rakuten Mobile (5G)
KDDI/au (5G)
SoftBank (5G)
FAQ
Key takeaways
How Unlimited data speed works
Unlimited plans give you the full-speed data shown on the card. After you use that allowance, data keeps working at a reduced speed until the end of the UTC day. Example: 500MB / 1 Day Unlimited - 512 Kbps = 500MB at full speed, then 512 Kbps until 00:00 UTC.
180 Days to Activate
Purchase your eSIM now and activate it anytime within 180 days from the date of purchase. Just install the eSIM and connect to the mobile network in your destination country to enjoy uninterrupted internet access!
More key takeaways
Full Tethering Support
Want constant internet access while traveling and to share it with other devices? Our plans fully support tethering, so you can easily share your mobile data with devices like laptops, tablets, or your friends' phones.
We do not block or restrict tethering in any way. Whether you're working remotely, traveling, or just need a quick Wi-Fi hotspot – you can use your data freely, with no hidden fees or limitations.
Easy eSIM Activation
Activating your eSIM is incredibly easy and fast. After purchase, you’ll receive all the necessary instructions to install the eSIM profile in just a few minutes. No physical SIM card or store visit required – everything is digital, giving you instant connectivity!
Your Smartphone Doesn't Support eSIM?
If your smartphone doesn’t support eSIM technology, don’t worry! There’s a solution. Visit <a href="https://9esim.com" class="inline-link" target="_blank">9esim.com</a> to learn how to easily enable eSIM support on your device and enjoy the flexibility of our data packages.
Keep Your Original SIM Card
While using our eSIM, your original SIM card will continue to work. The eSIM only provides data connectivity, which means you can still receive calls and SMS on your current number while enjoying affordable internet during your travels.