Best eSIM for Japan

An eSIM is a digital SIM in your phone. Buy a Japan plan on Plota, scan the QR we email you, and a data line installs next to your home SIM. Use Plota for data in Japan while your regular number stays for calls, texts, WhatsApp, and iMessage.

On Wi‑Fi before you travel: Settings → Cellular (or Mobile Data) → Add eSIM, then scan the QR from your Plota email or dashboard. Label the line (e.g. “Japan”), keep it ready, and when you arrive in Japan turn the line on and enable Data Roaming for it.

On Wi‑Fi: Settings → Network & internet → SIMs → Add eSIM, then scan your Plota QR (or paste the activation code). In Japan, set Plota as the mobile data SIM and turn Data Roaming on for that line.

After you install your Japan eSIM, open Settings → Cellular / Mobile Data (or Network & internet → SIMs), tap the Plota line, and select the network shown on your plan card or in the Plota app/dashboard. Do not guess a carrier — use the name listed for your plan.

In Japan, open Settings → Cellular / Mobile Data → select your Plota Japan eSIM → turn Data Roaming On. Also set Mobile Data to that eSIM line (not only your home SIM). Leave your home SIM’s roaming off if you want to avoid home-carrier roaming charges while still receiving calls/texts on your usual number.

We email the APN and supported networks for your Japan plan after purchase, and the same details appear on that eSIM in your Plota dashboard. Set mobile data to Plota, turn Data Roaming on for that line, and enter the APN only if your phone requests it or data does not start automatically.

Install on Wi‑Fi before departure. The plan typically starts when you first connect to a local network in Japan, not when you scan the QR. On arrival: enable the Plota line, set it for mobile data, and turn Data Roaming on.

An eSIM is a digital SIM card built into your phone — no physical SIM card to swap. You buy a travel data plan, scan a QR, and stay connected on local networks. Keep your number on your home SIM for calls and WhatsApp.

For most visitors it's a prepaid data eSIM. Plans start at $1.75 for 1 GB/7 days. Data sizes on this page include 1 GB, 3 GB, 2 GB, 5 GB, 10 GB, 20 GB. Validity options run 1–180-day packages. Some packages are fair-use unlimited (high-speed daily quota, then slower) — check the plan card before checkout. Choose your data amount and validity, pay online, and activate in minutes.

Right now this page shows 38 prepaid eSIM plans for Japan from $1.75. Data sizes on this page include 1 GB, 3 GB, 2 GB, 5 GB, 10 GB, 20 GB. Validity options run 1–180-day packages. Some packages are fair-use unlimited (high-speed daily quota, then slower) — check the plan card before checkout. Pick the package that matches your stay in Japan, then checkout for an instant QR.

The cheapest Japan eSIM on this page starts at $1.75 — usually a fixed-data pack sized to your trip, not unlimited-by-the-day. Data sizes on this page include 1 GB, 3 GB, 2 GB, 5 GB, 10 GB, 20 GB. Compare packages above; for a side-by-side vs Holafly, Airalo, Saily, and Ubigi see /compare and /blogs/cheapest-travel-esim.

An eSIM for Japan means data the moment you land — maps, rides, and messages without airport SIM queues or roaming charges. Install before you fly; turn the line on when you arrive.

Most Plota plans for Japan support mobile hotspot so you can share data with laptops and tablets. Check the plan details before checkout for tethering confirmation.

Yes. eSIM-compatible phones support dual SIM. Keep your home number on your physical SIM for calls and texts while using the Plota eSIM for affordable data in Japan.

Plota offers competitive prepaid rates for Japan — often up to 50% less than Holafly, Airalo, Saily, and Ubigi on comparable data packages, with instant QR and no roaming charges.

Unlocked phones with an EID can use this eSIM in Japan. iPhone XR, XS, and newer usually qualify. iPhone 11, 11 Pro, and 11 Pro Max work only when About shows an EID. Models A2223, A2217, and A2218 (mainland China, Hong Kong, and Macau) have no eSIM. See https://plota.app/compatible-phones before you buy.

You can purchase a top-up or a new plan from Plota before your trip ends. Data allowances and validity vary by package — choose a plan that matches your stay in Japan.

Check four things: (1) Mobile Data is set to the Plota eSIM, (2) Data Roaming is On for that line, (3) the APN matches your order email/dashboard if needed, (4) you are in coverage. Toggle airplane mode once. Still stuck? Email hello@plota.app with your order email and phone model.