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Comparing for a 3-day trip needing at least 3 gb. See how Japan 3GB 15 Days compares to Optus roaming for your Japan trip.
Limited competitor pricing data available for this trip. Roamiya comparison based on Optus roaming vs standard eSIM pricing -- instant delivery, no contract, transparent pricing.
JapanCarrier price last checked May 2026 for Optus Optus Daily Roaming; comparison assumes 3 days and 3 GB.
Head-to-head Comparison
Price
✓Carrier: A$15.00
Roamiya: Japan 3GB 15 Days ($3.49)
Data
~Carrier: Daily fee
Roamiya: 3 GB
Duration
~Carrier: 3 days
Roamiya: 15 days
Coverage
✓Carrier: 153 countries
Roamiya: 1 country
Activation
✓Carrier: Varies
Roamiya: Instant
Contract
✓Carrier: Required
Roamiya: None
Limitations
Carrier: Calls/SMS depend on plan terms
Roamiya: Data-only eSIM; use VoIP apps for calls and messaging
Match
~Carrier: 3 GB / 3 days (scenario)
Roamiya: Meets or exceeds
Alternative Options
Complete competitor pricing data is not yet available for this specific trip. The comparison below is based on Optus carrier roaming rates vs Roamiya eSIM pricing.
Carrier price last checked May 2026 for Optus Optus Daily Roaming; comparison assumes 3 days and 3 GB.
Instant delivery · No contract · Dual SIM support
Optus Optus Daily Roaming costs A$15.00 for 3 days in Japan. Breakdown: A$5.00/day × 3.
Yes, a Roamiya eSIM can save you 68% compared to Optus roaming in Japan. You'd save $7.25 with a travel eSIM instead of paying A$15.00.
Optus Optus Daily Roaming includes roaming data in Japan, while a Roamiya eSIM gives you 3 GB of data specifically for travel. The eSIM provides a predictable data allowance without per-MB roaming charges.
The best eSIM for Japan from Roamiya is available at Japan 3GB 15 Days ($3.49). It offers reliable data connectivity without the high costs of Optus international roaming.
Japan 3GB 15 Days ($3.49)
