Question 1

Does an eSIM work in Japan, and how do I activate it?

Accepted Answer

Yes - eSIMs work fully in Japan on local carrier networks. Activation is simple: buy a plan, get a QR code by email, scan it in Settings → Cellular → Add eSIM, and turn on mobile data. The whole thing takes 2–3 minutes.

Question 2

What speeds and networks are available in Japan?

Accepted Answer

Our eSIMs run on local 4G/5G networks in Japan. Urban speeds average 30–100 Mbps - plenty for video calls, streaming, and social media. Rural coverage can be slower, but 3G is widely available as a fallback.

Question 3

Which phones support eSIM?

Accepted Answer

eSIM is supported by iPhone XS and newer, Samsung Galaxy S20+, Google Pixel 3 and newer, Huawei P40 Pro+, and most other modern smartphones. Run your phone through our compatibility checker before buying.

Question 4

Can I make calls and send SMS with an eSIM?

Accepted Answer

Most eSIM plans are data-only. For calls and messages, use WhatsApp, Viber, Telegram, or similar apps over Wi-Fi or mobile data. A handful of plans include a local phone number - that's clearly flagged on the plan details.

Question 5

What if I run out of data while traveling?

Accepted Answer

Just buy a new plan straight from our website or app - your new QR code arrives within seconds. Unlimited plans never run out.

Question 6

How many eSIMs can I store on my phone?

Accepted Answer

Most modern phones hold 8–10 eSIM profiles, but only one can be active at a time. Delete old eSIMs and add new ones whenever you need to.

Question 7

What's the difference between local, regional, and global plans?

Accepted Answer

Local plans cover one country and are usually the cheapest option. Regional plans cover a group of countries (e.g., across Europe) and are ideal for multi-country trips. Global plans work in 100+ countries - more expensive, but you pay once for worldwide coverage.

Question 8

Is eSIM safe to use?

Accepted Answer

Yes - eSIMs are completely safe. They're embedded in your phone, so they can't be physically stolen or lost, and data is encrypted just like on a regular SIM card.