Live, factual prices
Roamiya rate from our live catalog. Carrier rate referenced from each provider's published travel-pass tariffs.
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Prices checked May 2026
Roamiya is the lowest indexed option for this trip and costs less than Optus Au standard roaming.
Vietnam 3GB 30 Days
$4.99
21 days · 3 GB· Instant delivery
Optus Daily Roaming
A$105.00
Plan: Daily feeSource: carrier rate page
Roamiya rate from our live catalog. Carrier rate referenced from each provider's published travel-pass tariffs.
Both prices reflect the same destination, trip length, and data target so the comparison stays apples-to-apples.
Catalog and carrier tariffs are revalidated regularly. Last verified May 2026.
Compare Optus Au, Roamiya, and this Vietnam scenario side by side.
Price
✓Carrier: A$105.00
Roamiya: $4.99
Data
~Carrier: Daily fee
Roamiya: 3 GB
Duration
~Carrier: 21 days
Roamiya: 30 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 / 21 days (scenario)
Roamiya: Meets or exceeds
Complete alternative-carrier pricing is not available for this Vietnam trip yet. This page still compares Optus Au roaming against Roamiya at $4.99.
Carrier price last checked May 2026 for Optus Au Optus Daily Roaming; comparison assumes 21 days and 3 GB.
Optus Au pricing recency and Roamiya package pricing are evaluated against the same trip assumptions before this page is published. Last verified May 2026.
Ready to choose the cheaper Vietnam option?
Open the matched Roamiya eSIM route for this scenario.
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