MicroEsim 7 cheapest rows

Flysimio vs MicroEsim in Japan

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

Flysimio

1/8 cheapest rows

8 of 12 facts confirmed Score 59/100 -10%

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

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Cheapest overall

MicroEsim

7/8 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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MicroEsim is the cheapest option in 7 of the 8 price rows for Japan. The remaining rows go to Flysimio. 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.

	Flysimio	MicroEsim
Starting price	$1.75 1GB · 7 days Get eSIM →	$0.81 Unlimited · 1 days Get eSIM →
1 GB or more	$1.75 1GB · 7 days Get eSIM →	$1.17 1GB · 5 days Get eSIM →
5 GB or more	$6.75 5GB · 30 days Get eSIM →	$3.51 5GB · 7 days Get eSIM →
10 GB or more	$11.75 10GB · 30 days Get eSIM →	$6.23 10GB · 15 days Get eSIM →
20 GB or more	$20.50 20GB · 30 days Get eSIM →	$11.98 20GB · 20 days Get eSIM →
Unlimited	$28.00 Unlimited · 7 days Get eSIM →	$0.81 Unlimited · 1 days Get eSIM →
Best price/GB	$0.85	$0.40
Best price/day	$0.05	$0.09

Comparison by eSIMKart

Starting price

Flysimio

$1.75

1GB · 7 days

Get eSIM →

MicroEsim

$0.81

Unlimited · 1 days

Get eSIM →

1 GB or more

Flysimio

$1.75

1GB · 7 days

Get eSIM →

MicroEsim

$1.17

1GB · 5 days

Get eSIM →

5 GB or more

Flysimio

$6.75

5GB · 30 days

Get eSIM →

MicroEsim

$3.51

5GB · 7 days

Get eSIM →

10 GB or more

Flysimio

$11.75

10GB · 30 days

Get eSIM →

MicroEsim

$6.23

10GB · 15 days

Get eSIM →

20 GB or more

Flysimio

$20.50

20GB · 30 days

Get eSIM →

MicroEsim

$11.98

20GB · 20 days

Get eSIM →

Unlimited

Flysimio

$28.00

Unlimited · 7 days

Get eSIM →

MicroEsim

$0.81

Unlimited · 1 days

Get eSIM →

Best price/GB

Flysimio

$0.85

MicroEsim

$0.40

Best price/day

Flysimio

$0.05

MicroEsim

$0.09

Comparison by eSIMKart

Networks in Japan

Flysimio: KDDI/au5G NTT docomo5G Rakuten Mobile5G SoftBank5G
MicroEsim: DOCOMO(IIJ)4G, 5G KDDI3G, 4G, 5G NTT Docomo4G, 5G Softbank4G, LTE, 5G

Plan types sold for Japan

FlysimioMicroEsim 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

Flysimio: Not confirmed yet

MicroEsim: Not confirmed yet

Refund policy

Flysimio: 7-day money-back guarantee: full refund, no questions asked, if you contact them within 7 days of purchase and have used less than 100 MB of data (a genuine connectivity test won't come close to that). After 100 MB, refunds are only for a real fault — QR/activation never arrived, a verified technical fault, undisclosed device incompatibility, or the coverage/data advertised not being delivered. Unused data does not roll over and is not refunded once the plan is running.

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.

Validity starts

Flysimio: You can buy any time — plans have 6 months to activate, and validity only starts once your phone connects to the destination network (check each plan card for the exact window).

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.

Fair-use limit

Flysimio: Fixed-data plans aren't throttled; daily-unlimited plans slow to 1 Mbps after the daily high-speed cap (FAQ: 5 GB/day; the per-plan cap is on each plan card), with no hard cutoff.

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.

Top-ups & rollover

Flysimio: Top-ups are instant via the account dashboard — same eSIM, no re-installation needed.

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).

Support

Flysimio: Email · Help center · Email replies within 24 hours (usually faster)

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

Comparison by eSIMKart