shibaSIM 3 cheapest rows

MicroEsim vs shibaSIM in Japan

Side-by-side pricing for Japan, straight from each provider's current real plans.

Cheapest overall

MicroEsim

5/8 cheapest rows

10 of 12 facts confirmed Score 74/100 -5%

Best for: Unlimited data · Multi-country trips · Short trips · Long stays

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shibaSIM

3/8 cheapest rows

10 of 12 facts confirmed Score 70/100 -5%

Best for: Budget travellers · Unlimited data · Multi-country trips · Short trips

View plans Visit ↗

MicroEsim is the cheapest option in 5 of the 8 price rows for Japan. The remaining rows go to shibaSIM. Live plans from each provider's catalog, re-checked daily.

Prices in Japan

Cheapest live plan from each provider per trip size. Every price links to that exact plan.

	MicroEsim	shibaSIM
Starting price	$0.81 Unlimited · 1 days Get eSIM →	$1.79 1GB · 7 days Get eSIM →
1 GB or more	$1.17 1GB · 5 days Get eSIM →	$1.79 1GB · 7 days Get eSIM →
5 GB or more	$3.51 5GB · 7 days Get eSIM →	$4.09 5GB · 30 days Get eSIM →
10 GB or more	$6.23 10GB · 15 days Get eSIM →	$5.99 10GB · 30 days Get eSIM →
20 GB or more	$11.98 20GB · 20 days Get eSIM →	$8.29 20GB · 3 days Get eSIM →
Unlimited	$0.81 Unlimited · 1 days Get eSIM →	$2.59 Unlimited · 3 days Get eSIM →
Best price/GB	$0.40	$0.37
Best price/day	$0.09	$0.10

Comparison by eSIMKart

Starting price

MicroEsim

$0.81

Unlimited · 1 days

Get eSIM →

shibaSIM

$1.79

1GB · 7 days

Get eSIM →

1 GB or more

MicroEsim

$1.17

1GB · 5 days

Get eSIM →

shibaSIM

$1.79

1GB · 7 days

Get eSIM →

5 GB or more

MicroEsim

$3.51

5GB · 7 days

Get eSIM →

shibaSIM

$4.09

5GB · 30 days

Get eSIM →

10 GB or more

MicroEsim

$6.23

10GB · 15 days

Get eSIM →

shibaSIM

$5.99

10GB · 30 days

Get eSIM →

20 GB or more

MicroEsim

$11.98

20GB · 20 days

Get eSIM →

shibaSIM

$8.29

20GB · 3 days

Get eSIM →

Unlimited

MicroEsim

$0.81

Unlimited · 1 days

Get eSIM →

shibaSIM

$2.59

Unlimited · 3 days

Get eSIM →

Best price/GB

MicroEsim

$0.40

shibaSIM

$0.37

Best price/day

MicroEsim

$0.09

shibaSIM

$0.10

Comparison by eSIMKart

Networks in Japan

MicroEsim: DOCOMO(IIJ)4G, 5G KDDI3G, 4G, 5G NTT Docomo4G, 5G Softbank4G, LTE, 5G
shibaSIM: KDDI4G/5G SoftBank4G

Plan types sold for Japan

MicroEsimshibaSIM Unlimited data ✓ ✓ Regional bundles ✓ ✓ Global bundles (50+ countries) ✓ ✓ Pay as you go — —

Policies compared

Confirmed from each provider's own site — see the trust card on each provider page for the verification date.

ID verification

MicroEsim: Not confirmed yet

shibaSIM: Not confirmed yet

Refund policy

MicroEsim: Conditional refund: full/partial if your device is eSIM-incompatible, the eSIM never connects (full minus a small admin fee), or it works only intermittently (partial, prorated). No refund once the plan has expired unused, once installed on a device (no transfers), for a wrong checkout email, or a simple change of mind. Approved refunds go back to the original payment method, up to 30 business days.

shibaSIM: Contact support within 7 days of purchase if a provider-side technical fault prevents activation, or for a mistaken plan whose QR code has not been installed or used. Approved refunds return to the original payment method in 5–10 business days. No refund once activated or used.

Validity starts

MicroEsim: Validity starts when you activate data roaming on the eSIM (connect to the network), not when you first install/add it to the device.

shibaSIM: Validity starts when the eSIM first connects to a network at the destination, unless the plan description states otherwise.

Fair-use limit

MicroEsim: Unlimited plans: 'true unlimited' plans may be throttled for the rest of the day once usage typically exceeds 10GB in a single day (resets daily); plans with a high-speed cap drop to 128kbps once that allowance is used.

shibaSIM: Daily plans: a fixed amount of high-speed data per day (0.5GB to 5GB depending on the plan), then data continues at reduced speed.

Top-ups & rollover

MicroEsim: No — an existing eSIM's data allowance can't be renewed or topped up; buy a new eSIM for more data (per their FAQ).

shibaSIM: Not offered: no self-service top-ups; customers buy a new plan instead.

Support

MicroEsim: Email · WhatsApp · Live chat · 24/7

shibaSIM: Email · WhatsApp · 08:00–22:00 JST, in English

Comparison by eSIMKart