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Mobile SIM Cards in Japan

There are several companies offering long and short term mobile SIMs, eSIMs. Most of these Japanese mobile 
SIM card providers offer an online application process which is quick and easy. Explore WORK JAPAN’s top
rated mobile SIMs and eSIMs below.

Home / Mobile SIMs

Mobal

Activation Fee

¥2970 (one time)

Cost per month

  • ¥1650 per month*
  • *lowest fee for long term plan

Data Amount

7GB

International Calling Charges

¥65 per minute

Sakura Mobile

Activation Fee

¥5500 (one time)

Cost per month

¥2,480

Data Amount

4GB-25GB

International Calling Charges

¥16.5 – ¥34.1/30 sec

Airalo eSim

Activation Fee

Most eSIMs will activate when you turn on your eSIM line and connect to a supported network at your destination.
*Varies with the plan

Cost per month

  • $4.50 – $24 (Options of Local, Regional, and Global eSim)
  • *Plan varies in the duration of days

Data Amount

1GB – 20GB

International Calling Charges

Phone calls & text messages are not available

Japan eSIM

Japan eSIM

Activation Fee

Varies with plan. Can range from ¥580 to ¥5780

Cost per month

  • ¥590*
  • *lowest fee for long term plan

Data Amount

Varies. Ranges from 3GB to Unlimited plans

International Calling Charges

Varies based on different data and city plans.

Ubigi eSIM

Activation Fee

Instant activation via QR code

Cost per month

¥570 – ¥4,100/monthly

Data Amount

5GB – 50GB

International Calling Charges

You cannot make phone calls with Ubigi eSIM data plans.

Bouygues Telecom eSIM

Activation Fee

Built‑in purchase price, no extra fee

Cost per month

€29.90–39.90 for 30 days

Data Amount

30 GB (30-day validity)

International Calling Charges

€25 credit (≈0.5 €/min to US)

eTravelSim

Activation Fee

None (QR code delivered via email)

Cost per month

Varies: e.g. ~$12.95 for 10 GB/30 days

Data Amount

10 GB for $12.95 (Europe), 25 GB/$49.99

International Calling Charges

Only some plans include voice; varies

Saily

Activation Fee

None – install via QR/email; activates on arrival 

Cost per month

Varies by plan: 

7‑day 1 GB ~$3.99

30‑day 3 GB ~$8.99 

up to 20 GB ~$35–56

 

Data Amount

1–20 GB depending on duration (7–30 days); up to unlimited soon

International Calling Charges

Data-only: no phone number; calls via VoIP apps