Best eSIM for Tokyo & Japan (2026), Ranked

Best balance of price, reliability, and ease. The default choice.

Ubigi is the best all-around Japan eSIM for most travelers. Good pricing, instant QR delivery, easy top-ups, and hotspot/tethering support. It just works.

Plan	Price	Validity
3 GB	US$9	30 days
10 GB	US$16.50	30 days
25 GB	US$32	30 days
50 GB	US$44	30 days

US$16.50 for 10 GB covers most two-week trips easily. If you’re a heavier user, 25 GB for US$32 is still excellent value. Top up through the app if you run low.

• Pros: Great pricing, hotspot works, easy top-ups, widely recommended for Japan
• Cons: Data-only (no calls/SMS), no unlimited option

Cheapest entry point. Buy small, add more if needed.

Nomad starts from US$4 for 1 GB. Their selling point is the add-on system: buy a small plan, and if you need more data, buy an add-on without replacing the eSIM. Good if you genuinely don’t know how much data you’ll use.

Connects to KDDI au and SoftBank networks. You can install up to 60 days before your trip and it activates when you land.

Plan	Price	Validity
1 GB	US$4	7 days
3 GB	US$8	30 days
5 GB	US$12	30 days
10 GB	US$20	30 days

• Pros: Cheap entry, flexible add-ons, hotspot included, install early
• Cons: Data-only, smaller company, support can be slow

Unlimited data if you don't want to think about it.

Holafly gives you unlimited data in Japan. No caps on browsing, no top-ups, no mental math about how many photos you can upload. About US$19 for 5 days.

The catch: hotspot sharing is limited to 1 GB/day. So “unlimited” means unlimited for your phone, but if you’re tethering a laptop, you’ll hit a wall. This matters if you’re planning to work from a cafe in Shinjuku.

• Pros: Truly unlimited on-device data, instant delivery, zero management
• Cons: Expensive for light users, 1 GB/day hotspot cap, data-only

Japan-based. Local English support. Premium pricing.

Sakura Mobile is a Japan-based company that caters specifically to foreign visitors. Their big advantage: local English-speaking support, physically in Japan. If something goes wrong, you’re not dealing with a chatbot in another timezone.

They offer unlimited 5G plans, and the support experience is genuinely better than any of the global eSIM apps.

Plan	Price	Data
7 days	¥5,000 (~US$33)	Unlimited 5G
15 days	¥7,500 (~US$50)	Unlimited 5G
30 days	¥13,500 (~US$90)	Unlimited 5G

The pricing is higher than Ubigi or Nomad, but you’re paying for the support and the local infrastructure. Worth it if this is your first time in Japan and you want a safety net.

• Pros: Japan-based local support, unlimited 5G, designed for tourists
• Cons: More expensive than global providers, hotspot limits depend on plan

The only option with a real Japanese phone number.

Every other eSIM on this list is data-only. Mobal is different: they give you a real Japanese phone number with voice and SMS.

Why does this matter? Some Japanese restaurants and services require a local phone number for reservations. Some verification flows only accept Japanese numbers. And if you’re staying longer than a week, having a callable number is genuinely useful.

Plan	Price	Includes
Voice Lite	¥990/month (~US$7)	Japanese number, calls, SMS
Voice + Data	¥1,650/month (~US$11)	Number + mobile data

• Pros: Real Japanese number, voice and SMS, good for longer stays
• Cons: Overkill for a 5-day trip, data plans are less competitive than Ubigi/Nomad

Fine, but not the best at anything.

Airalo is the biggest eSIM marketplace. Plans start around US$4.50 for 1 GB / 7 days, with options up to 20 GB / 30 days. The app is polished. It works.

But Nomad is cheaper for the same thing, Ubigi has better value at higher tiers, and Holafly is better for unlimited. Airalo isn’t bad for Japan. It’s just not the best option.

• Pros: Wide plan selection, good app, large company
• Cons: Slightly more expensive than Nomad, data-only, no unique advantage here