Roamdera in Japan: 40 plans
| Data and days | Cheaper elsewhere | Inbox eSIM | |
|---|---|---|---|
| 3 GB15 days | $3.40$1.13/GB · #11 of 72 | $3.6930 daysours: 30 days, not 15, a not-installed eSIM is refunded to your card | |
| 3 GB30 days | $3.60$1.20/GB · #16 of 57 | $3.6930 daysours: a not-installed eSIM is refunded to your card | |
| 5 GB30 days | $5.40$1.08/GB · #21 of 80 | $4.7930 days | |
| 10 GB30 days | $9.40$0.94/GB · #28 of 83 | $7.7930 days | |
| 20 GB30 days | $16.40$0.82/GB · #29 of 80 | $13.1930 days | |
| 50 GB30 days | $34.00$0.68/GB · #33 of 67 | $26.6930 days | |
| 50 GB180 days | $56.00$1.12/GB · #21 of 34 | $43.59180 days | |
| 2 GB a day, then 1 Mbps1 days | $3.20#17 of 29 | not sold | |
| 3 GB a day, then 384 kbps1 days | $4.40#17 of 29 | not sold | |
| 5 GB a day, then 384 kbps1 days | $7.04#17 of 29 | not sold | |
| 10 GB a day, then 384 kbps1 days | $9.68#17 of 29 | not sold | |
| 3 GB a day, then 1 Mbps3 days | $23.00#3 of 40 | $9.903 days | |
| 0.49 GB a day, then 384 kbps3 days | $3.00#3 of 40 | $9.903 daysours: a not-installed eSIM is refunded to your card | |
| 1 GB a day, then 1 Mbps3 days | $4.80#3 of 40 | $9.903 daysours: a not-installed eSIM is refunded to your card | |
| 2 GB a day, then 1 Mbps3 days | $9.60#3 of 40 | $9.903 daysours: a not-installed eSIM is refunded to your card | |
| 3 GB a day, then 384 kbps3 days | $13.20#3 of 40 | $9.903 days | |
| 5 GB a day, then 384 kbps3 days | $21.12#3 of 40 | $9.903 days | |
| 10 GB a day, then 384 kbps3 days | $29.04#3 of 40 | $9.903 days | |
| 3 GB a day, then 1 Mbps5 days | $34.00#4 of 45 | $14.905 days | |
| 0.49 GB a day, then 384 kbps5 days | $5.00#4 of 45 | $14.905 daysours: a not-installed eSIM is refunded to your card | |
| 1 GB a day, then 1 Mbps5 days | $8.00#4 of 45 | $14.905 daysours: a not-installed eSIM is refunded to your card | |
| 2 GB a day, then 1 Mbps5 days | $16.00#4 of 45 | $14.905 days | |
| 3 GB a day, then 384 kbps5 days | $22.00#4 of 45 | $14.905 days | |
| 5 GB a day, then 384 kbps5 days | $35.20#4 of 45 | $14.905 days | |
| 10 GB a day, then 384 kbps5 days | $48.40#4 of 45 | $14.905 days | |
| 3 GB a day, then 1 Mbps7 days | $53.00#4 of 42 | $20.907 days | |
| 0.49 GB a day, then 384 kbps7 days | $7.00#4 of 42 | $20.907 daysours: a not-installed eSIM is refunded to your card | |
| 1 GB a day, then 1 Mbps7 days | $11.20#4 of 42 | $20.907 daysours: a not-installed eSIM is refunded to your card | |
| 2 GB a day, then 1 Mbps7 days | $22.40#4 of 42 | $20.907 days | |
| 3 GB a day, then 384 kbps7 days | $30.80#4 of 42 | $20.907 days | |
| 5 GB a day, then 384 kbps7 days | $49.28#4 of 42 | $20.907 days | |
| 10 GB a day, then 384 kbps7 days | $67.76#4 of 42 | $20.907 days | |
| 3 GB a day, then 1 Mbps10 days | $69.00#2 of 40 | $27.9010 days | |
| 0.49 GB a day, then 384 kbps10 days | $10.00#2 of 40 | $27.9010 daysours: a not-installed eSIM is refunded to your card | |
| 1 GB a day, then 1 Mbps10 days | $16.00#2 of 40 | $27.9010 daysours: a not-installed eSIM is refunded to your card | |
| 2 GB a day, then 1 Mbps10 days | $32.00#2 of 40 | $27.9010 days | |
| 3 GB a day, then 384 kbps10 days | $44.00#2 of 40 | $27.9010 days | |
| 5 GB a day, then 384 kbps10 days | $70.40#2 of 40 | $27.9010 days | |
| 10 GB a day, then 384 kbps10 days | $96.80#2 of 40 | $27.9010 days | |
| 3 GB a day, then 1 Mbps15 days | $96.00#38 of 38 | $41.9015 days |
Roamdera’s Japan page ↗ · All 92 brands for Japan · Inbox eSIM Japan: 5 GB for 30 days $4.79
Roamdera is cheaper than Inbox eSIM on 11 of these plans. What ours does differently: a not-installed eSIM is refunded to your card. Every fact comes from Roamdera’s own pages; see how each brand works.
How Roamdera works
- App or account: No app: plans are bought on its site and the activation code is sent by email.
- Top-ups: Yes: its plan window says an eSIM bought there can be topped up with no new QR code.
- Refunds: Its terms say an eSIM that cannot be activated through a fault on its side is replaced or refunded, if reported within 24 hours of purchase; not when the phone lacks eSIM.
- Networks in Japan: NTT docomo, Rakuten Mobile, SoftBank, Softbank, KDDI, Rakuten
From Roamdera’s own pages; the sources are on the Japan comparison.
Questions
How much is a Roamdera eSIM for Japan?
3 GB for 15 days $3.40; 3 GB for 30 days $3.60; 5 GB for 30 days $5.40; 10 GB for 30 days $9.40; 20 GB for 30 days $16.40; 50 GB for 30 days $34.00, and 34 more plans (read 7 Nov 2026 on roamdera.com).
Is there a cheaper eSIM than Roamdera for Japan?
3 GB for 15 days: PikoeSIM $1.99 against $3.40; 3 GB for 30 days: PikoeSIM $1.99 against $3.60; 5 GB for 30 days: PikoeSIM $2.97 against $5.40; 10 GB for 30 days: PikoeSIM $4.98 against $9.40. Prices read 6 Nov to 7 Nov 2026; each links to its page.
Do I need an app for Roamdera in Japan?
No app: plans are bought on its site and the activation code is sent by email.. Top-ups: Yes: its plan window says an eSIM bought there can be topped up with no new QR code.. Refunds: Its terms say an eSIM that cannot be activated through a fault on its side is replaced or refunded, if reported within 24 hours of purchase; not when the phone lacks eSIM..
Other brands in Japan
Jetpac ·
Yesim ·
Airalo ·
Holafly ·
eSIMPal ·
Nomad ·
Ubigi ·
Alpine SIM ·
Always Mobile ·
eSIMCard ·
Gigago ·
Lempart Flex ·
MicroEsim ·
ONE eSIM
Written by Inbox eSIM, which sells eSIMs: every price links to where we read it, with the date (how we compare). Brand names and icons belong to their owners.