Complete Japan eSIM Provider Comparison
Posted by Cătălin on Wed, 1 Oct 2025
This table provides a detailed breakdown of all the eSIM providers listed in the research document. You can compare the various data plans, prices, and validity periods to find the option that best suits your travel needs for Japan. Use the links provided for potential discounts.
All prices are in USD.
| eSIM Provider ▲ | 1GB | 3GB | 5GB | 10GB | Unlimited / Other | Discount | Promo Code | |
|---|---|---|---|---|---|---|---|---|
| AirLo | $4.50 7 days |
$8.50 30 days |
$11.50 30 days |
$18.00 30 days |
- | - | $4.50 OFF | CATA3071 |
| saily | $3.99 7 days |
$7.99 30 days |
$10.99 30 days |
$17.99 30 days |
- | - | $5.00 OFF | CATAQO6088 |
| JetPac | $1.00 5 days |
$7.00 7 days |
$10.00 30 days |
$13.99 30 days |
- | - | $10.00 OFF | CAT62115 |
| MobiMatter | - | $5.00 5 days |
$5.78 15 days |
$6.50 7 days |
- | - | - | - |
| Ubigi | $4.00 30 days |
$8.00 15 days |
- | $14.00 30 days |
- | - | - | - |
| eSIM.io | $5.50 30 days |
$15.00 30 days |
$23.90 30 days |
$44.90 30 days |
- | - | Buy $10, get $22 | |
| OrbitMobile | $3.00 30 days |
$6.00 30 days |
$7.00 30 days |
$44.90 30 days |
- | - | 40% OFF on the app | - |
| RBM data (redbull) | $12.99 30 days |
$39.00 300 days |
$65.00 30 days |
$130.00 30 days |
- | - | Get Deal | RCO 2kA CP9 ekM 7gO1 |
| Sim Local eSim | $12.99 30 days |
$19.00 30 days |
$27.75 30 days |
$50.50 30 days |
$26.00 10 days |
$39.00 15 days |
- | - |
| Firstly | $17.25 14 days (1.5 GB per day high speed) |
- | €3.00 CREDIT | 7CY3-6NFN | ||||
| GigSky | $5.00 7 days |
$8.66 15 days |
$13.00 30 days |
$22.00 30 days |
$42.18 14 days |
$52.54 21 days |
25% OFF | NEGR126 |
| Roamless | - | - | $9.95 30 days |
$15.00 30 days |
$2.45/GB No expiration |
$5.00 CREDIT | K5Y3N | |
| iRoamly | $2.10 15 days |
$3.70 15 days |
$4.90 15 days |
$9.00 15 days |
$35.00 14 days |
- | $2.00 CREDIT | HOA5Cii |
| RedteaGO | $2.50 30 days |
$6.90 30 days |
$8.50 30 days |
$9.50 30 days |
$0.70 (Basic) 1 day |
$3.90 (Premium) 1 day |
$3.00 CREDIT | NEGR0013 |
| BNE eSIM | $2.82 30 days |
$7.90 30 days |
$13.26 30 days |
$25.38 30 days |
$29.00 (for 10GB) No expiration |
€3.00 CREDIT | Z8GUPTS3 | |
Potentially Best eSIM Deals for a 14-Day Trip
This table summarizes eSIM plans optimized for low cost per GB and suitable duration for a 14-day trip. Use this to compare data size, duration, and price per GB.
Fixed Data Plans
| Provider | Data | Duration | Price | Cost per GB | Notes |
|---|---|---|---|---|---|
| MobiMatter | 5GB | 15 days | $5.78 | $1.16 | Good for light use over 14 days |
| MobiMatter | 10GB | 7 days | $6.50 | $0.65 | Buy twice for 14 days, 20GB total, very cheap if you need more data |
| iRoamly | 5GB | 15 days | $4.90 | $0.98 | Good option for moderate use |
| iRoamly | 10GB | 15 days | $9.00 | $0.90 | Excellent value for 10GB over 14 days |
| JetPac | 10GB | 30 days | $13.99 | $1.40 | |
| Roamless | 10GB | 30 days | $15.00 | $1.50 | |
| RedteaGO | 10GB | 30 days | $9.50 | $0.95 | Very good value for 10GB |
Unlimited or High Daily Cap Plans
| Provider | Data | Duration | Price | Notes |
|---|---|---|---|---|
| Firstly | 1.5GB/day high speed | 14 days | $17.25 | Total 21GB, good value if daily cap is sufficient |
| iRoamly | Unlimited | 14 days | $35.00 | True unlimited |
| Sim Local eSim | Unlimited | 15 days | $39.00 | True unlimited |
| GigSky | Unlimited | 14 days | $42.18 | True unlimited |
Recommendations
- If you need 10GB+ for 14 days: MobiMatter 10GB (7-day plan x2), iRoamly 10GB, or RedteaGO 10GB.
- If you need 5GB for 14 days: iRoamly 5GB or MobiMatter 5GB.
- If you want unlimited or near-unlimited: Firstly $17.25, iRoamly $35.00, Sim Local eSim $39.00.
- Choose based on your actual daily usage. Heavy users should prefer unlimited or large GB packages. Light users can save with smaller plans.