Asia
✓ Prices checked Sep 30, 2026
Ubigi Japan eSIM plans & prices
Ubigi's complete Japan lineup — 15 plans, benchmarked against all 8 providers and 177 plans we track for this country.
Ubigi promo code
10% off your first Ubigi data plan — code
WELCOME10
Expires Dec 31, 2027. Applies at Ubigi checkout on top of the prices below.
The verdict, computed
Is Ubigi the right eSIM for Japan?
Ubigi's best rate in Japan is $0.90/GB — rank #4 of 8; the country benchmark is $0.55/GB. Entry price is $3.50 against the country floor of $1.99. The full ranking context lives in the all-provider Japan comparison.
Ubigi in Japan
All 15 Ubigi Japan plans
| Plan | Data | Validity | Price | $/day | $/GB | Link |
|---|---|---|---|---|---|---|
| 20GB / 30 Days | 20GB | 30 days | $18.00 | $0.60 | $0.90 | View plan |
| 60GB / 365 Days Most data | 60GB | 365 days | $55.00 | $0.15 | $0.92 | View plan |
| 60GB / 30 Days Most data | 60GB | 30 days | $65.00 | $2.17 | $1.08 | View plan |
| 50GB / 30 Days | 50GB | 30 days | $55.00 | $1.83 | $1.10 | View plan |
| 25GB / 30 Days | 25GB | 30 days | $32.00 | $1.07 | $1.28 | View plan |
| 30GB / 15 Days | 30GB | 15 days | $39.00 | $2.60 | $1.30 | View plan |
| 10GB / 7 Days | 10GB | 7 days | $14.00 | $2.00 | $1.40 | View plan |
| 5GB / 30 Days | 5GB | 30 days | $8.00 | $0.27 | $1.60 | View plan |
| 10GB / 30 Days | 10GB | 30 days | $16.50 | $0.55 | $1.65 | View plan |
| 5GB / 15 Days | 5GB | 15 days | $10.00 | $0.67 | $2.00 | View plan |
| 3GB / 15 Days | 3GB | 15 days | $7.50 | $0.50 | $2.50 | View plan |
| 1GB / 3 Days | 1GB | 3 days | $3.50 | $1.17 | $3.50 | View plan |
| 1GB / 30 Days | 1GB | 30 days | $4.00 | $0.13 | $4.00 | View plan |
| Unlimited / 8 Days | Unlimited | 8 days | $25.00 | $3.12 | — | View plan |
| Unlimited / 30 Days | Unlimited | 30 days | $45.00 | $1.50 | — | View plan |
Prices in USD as listed by Ubigi, excluding promo codes and taxes. Badges compare against all 177 Japan plans we track — see our methodology.
Fine print decoded
Is Ubigi unlimited data in Japan really unlimited
| Plan | Price | $/day | Fair-use policy |
|---|---|---|---|
| Unlimited / 8 Days | $25.00 | $3.12 | 5 GB per day at full speed, then ∞ at 2Mbps |
| Unlimited / 30 Days | $45.00 | $1.50 | 60 GB per month at full speed, then ∞ at 2Mbps (auto-renewing monthly subscription) |
Honest trade-offs
Where Ubigi wins and loses
Strengths
- +Operated by Transatel (NTT Group) since the 2017 eSIM launch
- +Coverage in 200+ destinations
- +Connectivity heritage across cars and laptops
- +5G where host networks offer it
Watch out for
- –Account setup required before buying
- –Entry prices above the budget brands
The other side by side
Ubigi vs the other providers in Japan
Airalo
from $4.00
The original eSIM marketplace
See Airalo plans →
aloSIM
from $3.50
Budget eSIM app from Canada's AffinityClick
See aloSIM plans →
Holafly
from $11.90
Unlimited data, pay by the day
See Holafly plans →
Roami
from $1.99
App-first travel eSIM with 24/7 activation
See Roami plans →
Roamic
from $2.00
European eSIM brand with unlimited options
See Roamic plans →
Saily
from $3.99
The no-logs eSIM from the NordVPN team
See Saily plans →
Yesim
from $3.97
Swiss-based eSIM with pay-as-you-go data
See Yesim plans →
See the whole Japan picture.
Ubigi is 4 of 8 on best $/GB here — the full table with all 177 plans, badges and fair-use notes lives on the Japan eSIM comparison. Prices verified Sep 30, 2026.