Japan unlimited data eSIM · KDDI networkView plans
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Japan eSIM

  • Instant delivery (email/QR)
  • Network: KDDI (au)
  • 24/7 support
Starting price
$8.95
Plan types
3 available
Validity
Up to 90 days

Choose your Japan eSIM

Compare available plans
  • Secure checkout
  • Instant delivery
  • 24/7 support
  • 4.6/5 Trustpilot
1.

Choose your eSIM plan

2.

Select speed

3.

Trip length

Popular durations
How validity works

KDDI Unlimited and One-time Bundle plans start on first connection in Japan and count Japanese calendar days. Activation day is day 1.

SoftBank · 90-day plans: Claim your QR code from your account when you are ready to use it. Your 90-day plan starts when you claim it.

Compare available plans

Prices and inclusions below belong to the same plan. Choose a plan to see its setup and coverage details.

  • Unlimited · eSIM

    3 days

    Plan price

    8.95 USD2.98 USD/day
    Data
    Unlimited · 10 Mbps
    Network
    au (KDDI)
    Phone number
    Not included
    Hotspot
    2GB
    Activation
    KDDI Unlimited and One-time Bundle plans start on first connection in Japan and count Japanese calendar days. Activation day is day 1.

  • One-time bundle · eSIM

    4 days

    Plan price

    10.60 USD2.65 USD/day
    Data
    12GB
    Network
    au (KDDI)
    Phone number
    Not included
    Hotspot
    12GB
    Activation
    KDDI Unlimited and One-time Bundle plans start on first connection in Japan and count Japanese calendar days. Activation day is day 1.

  • 90d plans · eSIM

    90 days

    Plan price

    30.00 USD0.33 USD/day
    Data
    30GB
    Network
    SoftBank
    Phone number
    Not included
    Hotspot
    30GB
    Activation
    Claim your QR code from your account when you are ready to use it. Your 90-day plan starts when you claim it.

  • Unlimited · eSIM

    3 days

    Plan price

    13.43 USD4.48 USD/day
    Data
    Unlimited
    Network
    au (KDDI)
    Phone number
    Not included
    Hotspot
    2GB
    Activation
    KDDI Unlimited and One-time Bundle plans start on first connection in Japan and count Japanese calendar days. Activation day is day 1.

  • One-time bundle · eSIM

    21 days

    Plan price

    29.95 USD1.43 USD/day
    Data
    20GB
    Network
    au (KDDI)
    Phone number
    Not included
    Hotspot
    20GB
    Activation
    KDDI Unlimited and One-time Bundle plans start on first connection in Japan and count Japanese calendar days. Activation day is day 1.

  • Unlimited · eSIM

    14 days

    Plan price

    43.13 USD3.08 USD/day
    Data
    Unlimited
    Network
    au (KDDI)
    Phone number
    Not included
    Hotspot
    13GB
    Activation
    KDDI Unlimited and One-time Bundle plans start on first connection in Japan and count Japanese calendar days. Activation day is day 1.

Japan travel eSIM guide

Japan eSIM plans for tourists, trains and heavy data use

Choosing an eSIM for Japan usually comes down to the local network, high-speed data allowance, hotspot, validity and activation timing. Unlike a physical SIM card or pocket Wi-Fi, an eSIM can be installed by QR code before departure; current BambooSIM Japan plans are data-only and keep the live network, mobile-data and hotspot terms close to checkout.

Product facts worth comparing

Plan choices
Three plan families: unlimited data, one-time fixed-allowance bundles and SoftBank 90d plans with 30GB or 50GB. Check the selected speed option, hotspot allowance and activation instructions.
KDDI/au network
Unlimited and one-time KDDI plans connect directly through KDDI/au with a Japan IP and do not require data roaming. The 90d plans use local SoftBank 5G/4G; follow the selected plan setup instructions.
QR setup and activation
KDDI plans start on their first supported network connection in Japan. For SoftBank 90d plans, claim the QR code from your account when ready to use it; claiming starts the 90-day plan.
Hotspot
Hotspot is supported where the selected plan lists an allowance; unlimited on-device data does not mean unlimited tethering.
Phone number
BambooSIM Japan plans are data-only and do not include a Japanese carrier phone number. Use LINE, WhatsApp or another data-based calling app.

Current BambooSIM plan details

Starting price
$8.95
Lowest price across the available plan families; inclusions vary by plan.
Plan types
3 available
35 plan options
Validity
Up to 90 days
Choose by trip length before checkout.
Data and coverage
Unlimited and fixed data
au (KDDI) + SoftBank

Before you choose

  1. 1.

    Compare unlimited data with a one-time fixed-allowance bundle. For unlimited plans, check the full-speed or 10 Mbps option and the hotspot allowance for your chosen duration.

  2. 2.

    Confirm that the phone is eSIM-compatible and carrier-unlocked, then check the selected network, data, hotspot and activation notes before paying.

  3. 3.

    Follow the selected plan instructions: KDDI starts on connection in Japan; SoftBank 90d plans start when you claim the QR code. Keep the eSIM installed while troubleshooting.

BambooSIM customer rating: 4.7 out of 5 from 26 reviews

Trustpilot 4.6/5 (20 reviews) · ProductReview 5/5 (6 reviews)

Which Japan eSIM fits the trip?

Unlimited Japan eSIM

Choose full-speed or 10 Mbps unlimited phone data where available. Laptop use must fit the separate hotspot allowance shown for the selected duration.

Compare unlimited Japan eSIM plans

One-time bundle

A fixed data allowance for a defined stay. Size the bundle for the whole trip and confirm the validity and tethering rules before purchase.

Japan eSIM FAQs

Choose unlimited for heavier phone data use, or a one-time bundle for a fixed allowance. Check the selected speed, duration and separate hotspot allowance before buying.

Unlock free data with eSIM

Get free data when you share your referral code with friends. Spread the word and enjoy the perks!

Learn more: Unlock free data with eSIM