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Cellesim eSIM Plans for Japan
Compare Cellesim's current data plans for Japan — real prices, checked daily.
Discount code:
- 42
- Plans for Japan
- $8.55
- Cheapest plan with 7+ days & 3GB+
- #70 / 124
- Price rank in Japan
- 10/12
- Trust facts verified
42 plans
All prices checked Oct 11, 2026
| # | Data | Duration | Daily cap | Price/GB | Price/day | Price | |
|---|---|---|---|---|---|---|---|
| 1 |
1GB
🌍 Regional
Also valid in: South Korea
|
7 days | — | $3.49/GB | $0.50/day |
$3.49 $3.49
$3.14 $3.49/GB
|
|
| 2 | 1GB | 7 days | — | $3.59/GB | $0.51/day |
$3.59 $3.59
$3.23 $3.59/GB
|
|
| 3 | 3GB | 15 days | — | $1.91/GB | $0.38/day |
$10.20
-44%
$5.72 $5.72
$5.15 $1.91/GB
|
|
| 4 |
Best price/day
3GB
|
30 days | — | $2.10/GB | $0.21/day |
$6.30 $6.30
$5.67 $2.10/GB
|
|
| 5 |
1GB
🌍 Regional
Also valid in: Cambodia, China, Hong Kong, Indonesia +7 more
|
7 days | — | $7.53/GB | $1.08/day |
$7.53 $7.53
$6.78 $7.53/GB
|
|
| 6 |
3GB
🌍 Regional
Also valid in: South Korea
|
30 days | — | $2.70/GB | $0.27/day |
$8.10 $8.10
$7.29 $2.70/GB
|
|
| 7 |
Best price
5GB
|
30 days | — | $1.71/GB | $0.29/day |
$9.00
-5%
$8.55 $8.55
$7.70 $1.71/GB
|
|
| 8 |
1GB
🌍 Regional
Also valid in: Australia, Cambodia, China, Hong Kong +15 more
|
7 days | — | $12.00/GB | $1.71/day |
$12.00 $12.00
$10.80 $12.00/GB
|
|
| 9 |
1GB
🌍 Regional
Also valid in: Bangladesh, China, Hong Kong, India +15 more
|
7 days | — | $12.00/GB | $1.71/day |
$12.00 $12.00
$10.80 $12.00/GB
|
|
| 10 |
1GB
🌍 Regional
Also valid in: Australia, Cambodia, China, Hong Kong +15 more
|
30 days | — | $12.95/GB | $0.43/day |
$12.95 $12.95
$11.66 $12.95/GB
|
|
| 11 |
5GB
🌍 Regional
Also valid in: South Korea
|
30 days | — | $2.60/GB | $0.43/day |
$13.00 $13.00
$11.70 $2.60/GB
|
|
| 12 |
Best unlimited
Unlimited
1GB/day, then 384 Kbps
|
5 days |
1GB/day
then 384 Kbps
|
— | $2.78/day |
$13.90 $13.90
$12.51 |
|
| 13 | 10GB | 30 days | — | $1.44/GB | $0.48/day |
$14.40 $14.40
$12.96 $1.44/GB
|
|
| 14 | Unlimited 1GB/day, then 384 Kbps | 7 days |
1GB/day
then 384 Kbps
|
— | $2.41/day |
$16.90 $16.90
$15.21 |
|
| 15 |
3GB
🌍 Regional
Also valid in: Cambodia, China, Hong Kong, Indonesia +7 more
|
15 days | — | $6.31/GB | $1.26/day |
$18.92 $18.92
$17.03 $6.31/GB
|
|
| 16 |
3GB
🌍 Regional
Also valid in: Cambodia, China, Hong Kong, Indonesia +7 more
|
30 days | — | $6.45/GB | $0.65/day |
$19.35 $19.35
$17.42 $6.45/GB
|
|
| 17 | 20GB | 30 days | — | $0.98/GB | $0.66/day |
$20.70
-5%
$19.67 $19.67
$17.70 $0.98/GB
|
|
| 18 | Unlimited 1GB/day, then 384 Kbps | 10 days |
1GB/day
then 384 Kbps
|
— | $2.29/day |
$22.90 $22.90
$20.61 |
|
| 19 | Unlimited 3GB/day, then 384 Kbps | 5 days |
3GB/day
then 384 Kbps
|
— | $4.80/day |
$24.00 $24.00
$21.60 |
|
| 20 |
10GB
🌍 Regional
Also valid in: South Korea
|
30 days | — | $2.56/GB | $0.85/day |
$25.60 $25.60
$23.04 $2.56/GB
|
|
| 21 |
5GB
🌍 Regional
Also valid in: Cambodia, China, Hong Kong, Indonesia +7 more
|
30 days | — | $5.81/GB | $0.97/day |
$29.03 $29.03
$26.13 $5.81/GB
|
|
| 22 |
3GB
🌍 Regional
Also valid in: Australia, Cambodia, China, Hong Kong +15 more
|
15 days | — | $9.71/GB | $1.94/day |
$31.15
-6%
$29.14 $29.14
$26.23 $9.71/GB
|
|
| 23 |
3GB
🌍 Regional
Also valid in: Bangladesh, China, Hong Kong, India +15 more
|
15 days | — | $9.71/GB | $1.94/day |
$31.15
-6%
$29.14 $29.14
$26.23 $9.71/GB
|
|
| 24 |
3GB
🌍 Regional
Also valid in: Bangladesh, China, Hong Kong, India +15 more
|
30 days | — | $10.22/GB | $1.02/day |
$30.67 $30.67
$27.60 $10.22/GB
|
|
| 25 |
3GB
🌍 Regional
Also valid in: Australia, Cambodia, China, Hong Kong +15 more
|
30 days | — | $10.22/GB | $1.02/day |
$30.67 $30.67
$27.60 $10.22/GB
|
|
| 26 | Unlimited 3GB/day, then 384 Kbps | 7 days |
3GB/day
then 384 Kbps
|
— | $4.40/day |
$30.80 $30.80
$27.72 |
|
| 28 | Unlimited 1GB/day, then 384 Kbps | 15 days |
1GB/day
then 384 Kbps
|
— | $2.50/day |
$37.50 $37.50
$33.75 |
|
| 29 | Unlimited 3GB/day, then 384 Kbps | 10 days |
3GB/day
then 384 Kbps
|
— | $4.40/day |
$44.00 $44.00
$39.60 |
|
| 30 |
5GB
🌍 Regional
Also valid in: Australia, Cambodia, China, Hong Kong +15 more
|
30 days | — | $9.07/GB | $1.51/day |
$45.33 $45.33
$40.80 $9.07/GB
|
|
| 31 |
5GB
🌍 Regional
Also valid in: Bangladesh, China, Hong Kong, India +15 more
|
30 days | — | $9.07/GB | $1.51/day |
$45.33 $45.33
$40.80 $9.07/GB
|
|
| 32 |
10GB
🌍 Regional
Also valid in: Cambodia, China, Hong Kong, Indonesia +7 more
|
30 days | — | $4.92/GB | $1.64/day |
$49.24 $49.24
$44.32 $4.92/GB
|
|
| 33 | Unlimited 3GB/day, then 384 Kbps | 15 days |
3GB/day
then 384 Kbps
|
— | $4.40/day |
$66.00 $66.00
$59.40 |
|
| 34 | Unlimited 1GB/day, then 384 Kbps | 30 days |
1GB/day
then 384 Kbps
|
— | $2.47/day |
$74.00 $74.00
$66.60 |
|
| 35 |
10GB
🌍 Regional
Also valid in: Australia, Cambodia, China, Hong Kong +15 more
|
30 days | — | $7.67/GB | $2.56/day |
$76.67 $76.67
$69.00 $7.67/GB
|
|
| 36 |
10GB
🌍 Regional
Also valid in: Bangladesh, China, Hong Kong, India +15 more
|
30 days | — | $7.67/GB | $2.56/day |
$76.67 $76.67
$69.00 $7.67/GB
|
|
| 37 |
20GB
🌍 Regional
Also valid in: Cambodia, China, Hong Kong, Indonesia +7 more
|
30 days | — | $4.29/GB | $2.86/day |
$85.79 $85.79
$77.21 $4.29/GB
|
|
| 38 | 50GB | 180 days | — | $1.96/GB | $0.54/day |
$98.00 $98.00
$88.20 $1.96/GB
|
|
| 39 | Unlimited 3GB/day, then 384 Kbps | 30 days |
3GB/day
then 384 Kbps
|
— | $4.40/day |
$132.00 $132.00
$118.80 |
|
| 40 |
20GB
🌍 Regional
Also valid in: Australia, Cambodia, China, Hong Kong +15 more
|
30 days | — | $6.67/GB | $4.44/day |
$133.33 $133.33
$120.00 $6.67/GB
|
|
| 41 |
20GB
🌍 Regional
Also valid in: Bangladesh, China, Hong Kong, India +15 more
|
30 days | — | $6.67/GB | $4.44/day |
$133.33 $133.33
$120.00 $6.67/GB
|
|
| 42 |
50GB
🌍 Regional
Also valid in: Australia, Cambodia, China, Hong Kong +15 more
|
180 days | — | $5.93/GB | $1.65/day |
$296.67 $296.67
$267.00 $5.93/GB
|
Other providers in Japan
Cheapest plan with 7+ days & 3GB+ (5GB+ from 15 days, 10GB+ from 180 days) from each provider, next to Cellesim's $8.55. Compare any two in Japan side by side.
About Cellesim
10 of 12 facts confirmedStill researching: Founded · ID verification
- Headquarters
- Newark, DE, USA
- Legal entity
- Cellesim, LLC
- Website
- cellesim.com
- Refund policy
- Refunds only for technical failures caused by Cellesim that support can't resolve; locked/incompatible phones, user error (e.g. deleting the eSIM), wrong-device installs and change of mind after delivery are non-refundable. Read the policy ↗
- Validity starts
- The validity countdown does not start at install - it begins only when the eSIM first connects to the network at your destination, so installing early does not waste days.
- Fair-use limit
- Carriers throttle the connection after the high-speed cap (often 5-20GB depending on tier); Plus/Premium tiers keep full speed longer.
- Top-ups & rollover
- Where a top-up is offered for your eSIM, add data from your Cellesim account or app to the same eSIM profile without reinstalling; if none is available you need to buy a new plan.
- Lost device / reinstalling
- Deleting the eSIM or installing on the wrong device is treated as non-refundable per terms; no reinstall or device-transfer option is described.
- Billing currency
- Checkout shows a currency selector (for example USD) and displays prices/top-ups in your chosen currency; no specific conversion-fee disclosure was found.
- Support
- Live chat · Email · 24/7
- Payment
- Card · PayPal · Apple Pay
Facts verified on Oct 2, 2026 from Cellesim's own site
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