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Outstanding value eSIM covering 190+ countries, sold through eSIM Go's consumer brand Breeze. Ideal for budget-conscious travellers or those visiting multiple countries in one trip.
Best for:Budget travellers or those on a multi-country trip through Asia.
The Japan-based choice for longer stays and travellers who want English-speaking support. Travel eSIMs with 3 GB/day or unlimited data; physical SIM plans with a voice option.
Best for:Long-stay visitors (1 month+) who need voice calls and English support.
Buy online before you travel. You'll receive a QR code by email within minutes — delivered straight to your inbox.
2
Scan the QR code in Settings
Go to Settings → Cellular (or Mobile Data) → Add eSIM → Scan QR Code. Takes under 2 minutes. You can do this at home before you even pack.
3
Activate on arrival
Switch to your Japan eSIM profile as your plane lands. You'll have a 4G signal before you reach baggage claim — no airport SIM vending machine needed.
FAQ
Common Questions
1. What is an eSIM and do I need one for Japan?
An eSIM is a digital SIM built into your phone — no physical card needed. You download a profile via QR code and it works instantly. You don't need an eSIM to visit Japan, but it's by far the most convenient option: buy and install before you fly, activate on landing.
2. Which phones support eSIM in Japan?
Most modern phones support eSIM: iPhone XS and later, Google Pixel 3 and later, Samsung Galaxy S20 and later, and many other Android flagships. Check your phone's Settings → About to confirm. Note: some carrier-locked phones may not support eSIM.
3. Can I keep my home SIM active while using a Japan eSIM?
Yes — this is one of the biggest advantages of eSIM. Most dual-SIM phones let you use both SIMs simultaneously. Keep your home SIM active for calls and texts while your Japan eSIM handles data.
4. Is Airalo or Holafly better for Japan?
Airalo is better for most people — it's cheaper, has flexible data caps, and uses both Docomo and SoftBank. Holafly wins if you genuinely need unlimited data (remote work, heavy streaming) and the premium price is justified for your trip.
5. What if my eSIM doesn't work after landing in Japan?
First, check that Data Roaming is enabled for your eSIM profile. If still no signal, toggle Airplane Mode on/off to force a network scan. All providers listed here offer 24/7 live chat support — Airalo and Holafly are especially responsive.
6. What's the difference between eSIM and a physical SIM card for Japan?
Both give you mobile data in Japan, but eSIM is faster to set up (no queuing at the airport), cheaper in most cases, and available before you travel. Physical SIM cards require waiting at the airport counter or vending machine after landing. The main advantage of a physical SIM is that it works on phones that don't support eSIM.
7. Can I use my home carrier in Japan instead of buying an eSIM?
Yes, but roaming is expensive. Most international carriers charge $10–15 per day for Japan roaming. For a 10-day trip, that's $100–150 just for data — versus $9–18 for a full Japan eSIM plan. Unless your carrier offers a flat travel add-on with good Japan coverage, a dedicated Japan eSIM is almost always cheaper.
8. What network does Airalo use in Japan?
Airalo Japan eSIM plans run on Docomo and SoftBank networks. Docomo has the widest coverage in Japan, including rural areas, mountains, and remote islands. SoftBank has strong urban and suburban coverage. In practice, most travellers won't notice a difference between the two in tourist areas.
9. What is Sakura Mobile and who is it for?
Sakura Mobile is a Japan-based carrier that offers both SIM cards and eSIMs specifically designed for tourists and long-term visitors. Unlike Airalo and Holafly, Sakura Mobile includes voice call capability, English-speaking customer support, and plans suitable for stays up to 90 days. It runs on Docomo (Japan's largest carrier). It costs more than budget eSIM options but is the best choice for anyone who needs a Japanese phone number or plans an extended stay.
10. How much data do I need for Japan?
For typical tourist use — Google Maps, messaging, light browsing, and a few photos — 1 GB per day is a reasonable estimate. A 10-day trip would use around 8–10 GB. If you use maps heavily for driving, stream video, or work remotely, budget 2 GB+ per day. Most travellers find a 3–5 GB plan sufficient for a week-long trip to Japan.
11. How much does a Japan eSIM cost?
Japan eSIM prices vary by provider and plan size (checked 20 Sep 2026). Budget options: eSIM Go from $3.99 / 1 GB / 7 days, Airalo from $4.00 / 1 GB / 3 days. Mid-range: a 5 GB plan is $9.99 (5 GB / 30 days) from eSIM Go or $10.00 (5 GB / 7 days) from Airalo. Unlimited: Holafly from $11.90 (Unlimited / 3 days). Japan-based with English phone support: Sakura Mobile from $18.07 / 9 GB / 3 days. For a typical tourist week, expect to pay $10–20.
12. Is unlimited data worth it for a Japan trip?
For most tourists: no. Japan has excellent Wi-Fi coverage in hotels, convenience stores, and tourist areas. A 3–5 GB plan covers a typical week of maps, messaging, and browsing. Unlimited plans (like Holafly) cost 2–3x more and mainly benefit heavy users who stream video, use video calls frequently, or travel to areas with poor Wi-Fi. If you're unsure, start with a 5 GB plan and consider whether you need more.
13. Can I top up my eSIM once I'm in Japan?
Yes — most providers support in-app top-ups without needing a new QR code. With Airalo, purchase an additional plan through the app and it tops up your existing eSIM profile automatically. eSIM Go and Sakura Mobile have similar top-up flows. Holafly unlimited plans are fixed-duration and require purchasing a new plan if you stay longer.
14. Do Japan eSIM plans include calls and SMS?
Most tourist-oriented eSIM plans — including Airalo, eSIM Go, and Holafly — are data-only. They don't include voice calls or SMS. For calls in Japan, you can use WhatsApp, LINE, or FaceTime over data. If you genuinely need a Japanese phone number with voice capability, Sakura Mobile is the best option among the main providers.
15. When should I activate my Japan eSIM?
Install the eSIM (scan the QR code) before you leave home — this takes 2–5 minutes and requires a Wi-Fi connection. However, most plans start counting days from the first time you connect to a network in Japan, not from when you install the profile. Switch to the Japan eSIM data line once your plane lands, so your plan starts when you need it.
16. Why is my Japan eSIM speed slow?
A few possible causes: you've used most of your data allowance (many plans throttle speed after a threshold), you're in a low-coverage area (tunnels, rural mountains), or peak network congestion in crowded tourist areas like Shibuya or Kyoto Station. Try toggling Airplane Mode. If speeds don't improve and you're under your data limit, contact your provider's support.
