Yesim in Japan: plans, prices and how it compares

At prices checked on October 22, 2026, Yesim sells 35 plans in Japan, from 1 day to 30 days. For a week of everyday use (6 GB), it costs €16.00 (10 GB · 30 days): 9th of 9 providers we compare; the cheapest is GoMoWorld, at $12.99.

Prices checked on October 22, 2026

Our pick of Yesim plans in Japan

Out of its 35 plans, at prices of October 22, 2026

1For a week
Yesim
10 GB · 30 days
€16.00€1.60 per GB
- KDDI (au)
- Hotspot allowed
See the plan
2Lowest price
Yesim
Unlimited · 1 day
€3.50€3.50 per day
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
See the plan
3For a month
Yesim
30 GB · 30 days
€33.00€1.10 per GB
- KDDI (au)
- Hotspot allowed
See the plan

“For a week”: the Yesim plan that covers 7 days of everyday use (6 GB) at the lowest price. Prices from Yesim’s website. · Affiliate links

Yesim in Japan at a glance

What Yesim states for Japan, and how it ranks among the 9 providers we compare.

Plans in Japan

from 1 day to 30 days

A week from

€16.00

10 GB · 30 days

Rank for a week

9th of 9

by total price, everyday use

Network

KDDI (au)

as stated by Yesim

Plan starts

On first connection at your destination

Time to install it

90 days

Hotspot

Yes

ID check

Top-up

Yes

Yesim in Japan: our analysis

From our price checks of October 22, 2026, not yet tested on the ground.

The right plan for your trip length

3 days5 GB · 30 days€8.80
1 week10 GB · 30 days€16.00
2 weeks20 GB · 30 days€24.80
1 month30 GB · 30 days€33.00

Against the other providers

Yesim ranks 7th of 9 for 3 days; 9th of 9 for a week; 7th of 9 for two weeks; 5th of 9 for a month.

3 daysYesim€8.80GoMoWorld€3.99
1 weekYesim€16.00GoMoWorld€10.99
2 weeksYesim€24.80GoMoWorld€10.99
1 monthYesim€33.00GoMoWorld€19.99

Unlimited or capped data?

The cheapest unlimited plan: Unlimited · 7 days, at €24.50 (€3.50 a day). Speed may be reduced depending on use.
For a week of everyday use (6 GB), 10 GB · 30 days is enough: €16.00.

Good to know before you buy

The plan starts on your first connection at your destination: install the eSIM at home before you leave.
You have 90 days to install it after purchase.
Hotspot allowed: you can connect a laptop or a tablet.
No ID is required.
You can top up if you run out of data during the trip.
5G is listed in Japan.

Yesim elsewhere in Asia

A week of everyday use (6 GB), at today’s prices:

Thailand10 GB · 30 days€11.00
Taiwan10 GB · 30 days€12.00
Philippines10 GB · 30 days€15.00
Hong Kong10 GB · 30 days€16.00
Indonesia10 GB · 30 days€16.00
South Korea10 GB · 30 days€16.00

Every Yesim plan in Japan

Checked daily on Yesim’s website, here at prices of October 22, 2026.

Yesim sells 35 plans in Japan, from 1 day to 30 days. The price per GB ranges from €3.70 (1 GB · 30 days) to €1.10 (30 GB · 30 days). Unlimited costs €1.83 to €3.50 a day.

Unlimited · 1 day
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€3.50€3.50 per day
See the plan
Unlimited · 2 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€7.00€3.50 per day
See the plan
Unlimited · 3 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€10.50€3.50 per day
See the plan
Unlimited · 4 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€14.00€3.50 per day
See the plan
Unlimited · 5 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€17.50€3.50 per day
See the plan
Unlimited · 6 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€21.00€3.50 per day
See the plan
Unlimited · 7 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€24.50€3.50 per day
See the plan
Unlimited · 8 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€25.94€3.24 per day
See the plan
Unlimited · 9 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€27.38€3.04 per day
See the plan
Unlimited · 10 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€28.81€2.88 per day
See the plan
Unlimited · 11 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€30.25€2.75 per day
See the plan
Unlimited · 12 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€31.69€2.64 per day
See the plan

See the other 23 plans

Unlimited · 13 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€33.13€2.55 per day
See the plan
Unlimited · 14 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€34.56€2.47 per day
See the plan
Unlimited · 15 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€36.00€2.40 per day
See the plan
Unlimited · 16 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€37.27€2.33 per day
See the plan
Unlimited · 17 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€38.53€2.27 per day
See the plan
Unlimited · 18 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€39.80€2.21 per day
See the plan
Unlimited · 19 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€41.07€2.16 per day
See the plan
Unlimited · 20 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€42.33€2.12 per day
See the plan
Unlimited · 21 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€43.60€2.08 per day
See the plan
Unlimited · 22 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€44.87€2.04 per day
See the plan
Unlimited · 23 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€46.13€2.01 per day
See the plan
Unlimited · 24 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€47.40€1.98 per day
See the plan
Unlimited · 25 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€48.67€1.95 per day
See the plan
Unlimited · 26 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€49.93€1.92 per day
See the plan
Unlimited · 27 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€51.20€1.90 per day
See the plan
Unlimited · 28 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€52.47€1.87 per day
See the plan
Unlimited · 29 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€53.73€1.85 per day
See the plan
1 GB · 30 days
- KDDI (au)
- Hotspot allowed
€3.70€3.70 per GB
See the plan
5 GB · 30 days
- KDDI (au)
- Hotspot allowed
€8.80€1.76 per GB
See the plan
10 GB · 30 days
- KDDI (au)
- Hotspot allowed
€16.00€1.60 per GB
See the plan
20 GB · 30 days
- KDDI (au)
- Hotspot allowed
€24.80€1.24 per GB
See the plan
30 GB · 30 days
- KDDI (au)
- Hotspot allowed
€33.00€1.10 per GB
See the plan
Unlimited · 30 days
- Speed may be reduced depending on use
- KDDI (au)
- Hotspot allowed
€55.00€1.83 per day
See the plan

Affiliate links

Yesim against the others in Japan

Each provider’s cheapest plan that covers the trip (everyday use), at today’s prices.

Trip	Yesim	Rank	Cheapest	Offer
3 days · 3 GB	€8.80	7th / 9	$4.99 GoMoWorld	See the plan
1 week · 6 GB	€16.00	9th / 9	$12.99 GoMoWorld	See the plan
2 weeks · 12 GB	€24.80	7th / 9	$12.99 GoMoWorld	See the plan
1 month · 24 GB	€33.00	5th / 9	$24.99 GoMoWorld	See the plan

Affiliate links

Alternatives to Yesim in Japan

The three best-ranked providers for a week of everyday use (6 GB), leaving Yesim aside.

1GoMoWorld
14 GB · 30 days
- Hotspot allowed
$12.99$0.93 per GB
See the plan
2Jetpac
10 GB · 7 days
- KDDI (au) · Rakuten Mobile
- Hotspot allowed
$13.00$1.30 per GB
See the plan
3Ubigi
10 GB · 7 days
- NTT Docomo · KDDI (au) · SoftBank
- Hotspot allowed
$14.00$1.40 per GB
See the plan

Compare every eSIM in Japan →

Affiliate links

Yesim in Japan: your questions

Answered from today’s data.

Does Yesim work in Japan?

Yes: Yesim sells 35 plans in Japan, on the KDDI (au) network.

How much is Yesim in Japan?

For a week of everyday use, €16.00 (10 GB · 30 days); its plans range from €3.50 to €55.00, at prices checked on October 22, 2026.

Is Yesim the cheapest in Japan?

No, for a week of everyday use: Yesim ranks 9th of 9; the cheapest is GoMoWorld, at $12.99.

Can I use a hotspot with Yesim in Japan?

What Yesim states: Yes.

Which Yesim plan should I get in Japan?

For 3 days, 5 GB · 30 days (€8.80); for a week, 10 GB · 30 days (€16.00); for two weeks, 20 GB · 30 days (€24.80); for a month, 30 GB · 30 days (€33.00).

Does Yesim have an unlimited plan in Japan?

The cheapest unlimited plan: Unlimited · 7 days, at €24.50 (€3.50 a day). Speed may be reduced depending on use.

When does the Yesim plan start in Japan?

The plan starts on your first connection at your destination: install the eSIM at home before you leave. You have 90 days to install it after purchase.

Do I need ID for Yesim in Japan?

No ID is required.

Can I top up Yesim in Japan?

You can top up if you run out of data during the trip.

Which network does Yesim use in Japan?

What Yesim states: KDDI (au).

Is Yesim worth it in Japan?

From our price checks (we have not tested it on the ground yet): its strengths are unlimited data from €1.83 a day, hotspot, and top-ups; watch out for its price for a week (9th of 9).

Yesim in other countries

United States All about Yesim →

Other providers in Japan