RoamMate
RoamMate: Japan-only data bundles span 1–50 GB, with hotspot support and QR-code installation. Ranked #46 of 60 in Japan eSIM Plans by our editors (4.1/10); pricing: Paid; best for travelers seeking longer-validity fixed-data bundles.
At a glance
- Editor score4.1 / 10
- PricingPaid
- Best forTravelers seeking longer-validity fixed-data bundles
- Free planNo
- Data typeFixed
- Facts checked3 Oct 2026
Where it wins
- Fixed-data options range from 1 GB to 50 GB
- Coverage is listed across KDDI, SoftBank and NTT Docomo
- Hotspot use and QR-code installation are supported
Where it doesn't
- Data-only plans do not include a local voice or SMS number
- Coverage is limited to Japan
- Plans require a compatible iOS or Android device
Our verdict on RoamMate
RoamMate sells prepaid, data-only eSIM plans for visitors to Japan who want a defined data allowance rather than a recurring mobile subscription. The listed bundles range from 1 GB to 50 GB, with options for short visits and longer validity periods. Japan coverage is listed on KDDI, SoftBank and NTT Docomo networks, with 4G/5G coverage. It is aimed at travelers who can rely on data connectivity and do not need a local phone number for calls or SMS.
The plan lineup includes 1 GB for 7 days, 3 GB for 15 days, 5 GB and 10 GB for 30 days, and 20 GB and 50 GB options for 30 days. A further 50 GB plan is listed with 180-day validity. The starting price is 3.49 AUD for the Japan 1GB 7Days plan; plans are one-time purchases. This range gives travelers a choice between a small allowance for a brief trip and larger bundles for heavier use or longer stays. Buyers should compare the bundle and validity that match their itinerary rather than expect an ongoing subscription.
The eSIM is delivered by email for QR-code installation, and RoamMate says it can be installed before travel and activates after connecting in Japan. Hotspot and tethering support allow the data connection to be shared with other devices. The service is available on iOS and Android, but it is mobile-only and data-only: travelers who need voice calls or SMS on a local number should choose a plan that includes those services. RoamMate fits visitors seeking a Japan-specific data bundle with network choice and hotspot support; it is less suited to anyone who needs connectivity outside Japan or a conventional local mobile line.
RoamMate pricing
All 7 RoamMate plans and prices →
RoamMate fact sheet
| Free plan | No |
|---|---|
| Paid from | Not verified |
| Data type | Fixed |
| Data allowance | 1 GB |
| Validity | 7 days |
| Hotspot support | Yes |
| Coverage scope | Japan_only |
| Activation timing | First_connection |
| Deployment | Mobile |
| Platforms | iOS, Android |
| Support | |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Paid (source) |
| Website | roammate.com.au |
| Facts checked | 3 Oct 2026 |
Alternatives to RoamMate
- AiraloA broad Japan eSIM lineup with app tracking, low-data alerts, and eligible top-ups.9.3
- Orange TravelA flexible prepaid choice, from a €1 1 GB bundle to larger and unlimited plans.9.1
- Vodafone Travel eSIMJapan data plans range from fixed bundles to unlimited and shared options.9.0
See all RoamMate alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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