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eSIM vs Telstra Roaming: Why Aussies Are Ditching Carrier Day Passes

Heading to Bali, Japan, Thailand or New Zealand? Roaming day passes from Telstra, Optus and Vodafone AU charge you for every day you use them, and bill shock is all too common when you get home. A prepaid HelloRoam eSIM usually costs far less than carrier roaming, and you know the full price before you go. Here's a clear breakdown of costs, speeds and convenience.

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10GB
185+ Countries
From A$1.46
Setup in Minutes

Why an eSIM Beats Carrier Roaming

No Surprise Bills

Pay a flat rate before you travel. No overages, no bill shock waiting for you when you get back to Australia. Your total cost is locked in from the start.

Local Network Speeds

A HelloRoam eSIM connects you directly to a local 4G/5G tower in Tokyo, Paris or Rome on local carrier networks, with no carrier roaming pass needed. Telstra, Optus and Vodafone AU roaming passes are add-ons to your home plan.

Keep Your Home Number

Run dual SIM to keep your Aussie number active for calls while the eSIM handles all your data. Turn off roaming on your Telstra or Optus plan.

Instant Activation

Set up your eSIM before your flight or right at the gate. No store queues, no paperwork, no waiting. Scan a QR code and you're online.

Save on Roaming

A week of carrier roaming means a day pass fee for every day you use data. A HelloRoam eSIM for the same trip starts at a fraction of that, with no daily meter running. Spend that money on the trip instead.

Multi-Country Plans

One eSIM plan covers multiple countries in a region. No need to sort a separate roaming pass for every destination on your itinerary.

Real-World Cost Comparisons for Australian Travellers

Long Weekend in Bali

A 3-day Bali trip on Telstra or Optus international roaming means paying a day pass fee for every day you use data. Data roaming charges from both carriers start the first time you use data overseas. A HelloRoam eSIM with 3GB covers maps, WhatsApp and social media for the whole trip. Turn off data roaming on your home SIM, set the eSIM as your data line, and you're sorted before your plane even lands.

No daily pass fees

2-Week Japan and Thailand Trip

Two weeks across Japan and Thailand on Telstra or Vodafone AU roaming means a day pass fee for every day you use data, and it adds up fast. A HelloRoam 10GB eSIM covers both countries on one plan for one prepaid price, using local networks with no roaming fees from your home carrier. Use maps in Tokyo, message mates from Phuket and check Google Maps in both countries without watching roaming charges stack up each morning.

One prepaid plan for both countries

Month-Long Europe Trip

A month touring Spain, France and Italy on daily carrier roaming means a fee for every day of the trip, on top of your usual bill. A HelloRoam 20GB eSIM covers your whole cross-border trip for one prepaid price. One upfront payment, no overage fees, no carrier settings to adjust as you cross each border. To avoid roaming fees entirely, switch off data roaming for your home SIM before takeoff.

One upfront payment, no overage fees

Roaming estimates based on Telstra, Optus, and Vodafone AU published international rates. Actual costs vary by carrier, destination, and plan.

Australian traveller on their phone in Bali, saving money with a HelloRoam eSIM instead of paying Telstra roaming day rates

eSIM vs Telstra Roaming vs Pocket Wi-Fi

How each option stacks up for Aussies heading overseas

eSIM vs Telstra Roaming vs Pocket Wi-Fi
Feature comparisonHelloRoam
Carrier RoamingPocket Wi-Fi
No Surprise BillsFeature availableFeature not availableFeature available
Flat Upfront PricingFeature availableFeature not availableFeature available
Local Network SpeedsFeature availableFeature not availableFeature available
Instant QR Code SetupFeature availableFeature not availableFeature not available
Keep Your Home NumberFeature availableFeature availableFeature available
No Daily FeesFeature availableFeature not availableFeature not available
Multi-Country PlansFeature availableFeature availableFeature not available

Find Your eSIM Plan

Browse affordable eSIM plans for your destination

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How to Get Your eSIM

  1. 1

    Choose your destination

  2. 2

    Scan the QR code

    Scan QR code to install eSIM
  3. 3

    Install your eSIM

  4. 4

    Connect and go

    Turn off roaming and connect
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One-Touch Installation

Set up your eSIM in seconds with a QR code scan. Confirm, and you're connected before the plane lands.

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Got questions about international roaming or eSIM setup? Our support team is here around the clock. Reach us via live chat or WhatsApp anytime.

Stop Overpaying for Roaming

Telstra and Optus roaming locks you into their pricing and their deals with foreign networks. A prepaid eSIM travel plan skips your home carrier's roaming fees. You buy a data plan before you leave for one prepaid HelloRoam price, then connect to a local partner network wherever you go.

Relieved Australian traveller who switched from expensive Telstra roaming to an affordable HelloRoam eSIM plan

No Surprise Bills

Pay one prepaid price before you fly out of Sydney, Melbourne or Brisbane. No per-megabyte charges and no surprise roaming charges on your Telstra or Optus bill when you land back in Australia.

Local Network Speeds

Connect to a local 4G/5G tower in London, Tokyo or Barcelona. With Telstra or Optus roaming, you pay a day pass fee for each day you use data.

Keep Your Home Number

Run dual SIM to keep your Aussie number active for calls and texts while the eSIM handles all your data abroad. Turn off roaming on your primary SIM to avoid carrier charges.

Instant Activation

Set up your eSIM before your flight or right at the airport. No waiting in line, no store visits, no paperwork. Scan a QR code and get online in minutes.

Reviews

Loved by travellers worldwide

Real reviews from Trustpilot and the App Store, quoted as written.

40k+ travellers have used HelloRoam

Cat

Trustpilot
On a trip to Europe, my hotel Wi-Fi was so slow and outside Wi-Fi was unreliable. I couldn’t take it anymore so I got helloroam for a few days. It was tricky to set up correctly because of the primary settings (with my original number). But I reached out to their customer service via WhatsApp. Super responsive and helpful, with specific and clear steps to troubleshoot. Appreciate having 4G roaming instead of being stuck with in and out Wi-Fi during my trip!!

Rated 5 out of 5 by this reviewer

A traveller smiles at the view while holding her phone by an airport window
Very good experience! The eSIM was easy to set up and worked great in London. It was much cheaper than it would have been to use my own operator there.

Ilona

Trustpilot

Rated 5 out of 5 by this reviewer

metulker

App Store
Hard to set up but help was good

Rated 5 out of 5 by this reviewer

Reuben

Trustpilot
Really happy with HelloRoam. Everything worked as expected, from messaging and Google Maps through to streaming without any issues. Easy to use, reliable and affordable. Would happily use them again when travelling.

Rated 5 out of 5 by this reviewer

Hikers with backpacks walk along the Great Wall of China

Angeline

Trustpilot
Reliable connection. Reasonable pricing.

Rated 4 out of 5 by this reviewer

Frequently Asked Questions

How much does roaming cost per day for Australians overseas?

Australian carriers charge 5 to 10 AUD per day for an international roaming day pass, depending on your destination and plan. Telstra's International Day Pass costs 10 AUD a day in places like the USA, Japan, Indonesia and Thailand, and 5 AUD a day in New Zealand. Optus charges 5 AUD a day on Choice Plus plans and 10 AUD a day for its Roaming Pass on other postpaid plans, and Vodafone AU has a similar setup. Without a Day Pass, Telstra's pay-as-you-go data costs 3 AUD per MB. At 10 AUD a day, a one-week overseas trip racks up 70 AUD in roaming fees.

How do I avoid roaming charges when travelling overseas?

Turning off the data roaming setting on your home SIM and using a prepaid eSIM is the most reliable way to avoid roaming charges. On iPhone, find the setting at Settings, Mobile Service (Mobile Data on older iOS versions), Mobile Data Options, then Data Roaming. On Android, go to Settings, Connections, Mobile Networks, then Data Roaming. Buy your HelloRoam international plan before you leave, set it as your data line, and leave your Telstra or Optus SIM active only for calls and texts. That way you won't come home to a nasty data roaming bill.

Is eSIM cheaper than roaming?

eSIM is cheaper than carrier roaming in almost every scenario. Australian carriers charge 5 to 10 AUD per day for international roaming, which comes to 35 to 70 AUD for a one-week trip. A HelloRoam eSIM is one flat upfront price instead, with plans from A$1.46, no daily charges and no overages to stress about.

Is eSIM worth it for a two-week trip to Europe or Asia?

eSIM easily pays off on a two-week overseas trip. At 5 to 10 AUD a day, Telstra or Optus roaming for two weeks costs 70 to 140 AUD. A HelloRoam 10GB eSIM covers the same itinerary for far less, on local 4G or 5G networks across multiple countries. Speeds depend on the local network. Keep your home number active for calls on your primary SIM and let the eSIM handle all your data.

Is it cheaper to buy a local SIM or use roaming?

A local SIM from a shop in Bali or Phuket can be cheaper per GB than carrier roaming, but you have to queue up, show your passport, and wait for activation. An eSIM skips all of that. Buy your HelloRoam plan before you leave, scan the QR code at home, and you're sorted before your Qantas or Jetstar flight boards. For most short trips to Southeast Asia or New Zealand, eSIM convenience beats the SIM card hunt every time.

What is cheaper, eSIM or roaming?

eSIM costs less than carrier roaming on every trip longer than a day or two. Australian carrier day passes cost 5 to 10 AUD a day. HelloRoam plans start from A$1.46 with local network speeds and one upfront price, so there's no daily rate ticking over. On a two-week Europe trip, the savings add up fast compared with standard Telstra or Optus international rates. No worries about bill shock when you get home.

Are eSIMs better than roaming for international travel?

eSIM is better than carrier roaming for overseas travel because you pay a flat prepaid rate instead of a per-day fee that compounds over your whole trip. HelloRoam eSIM covers 185+ countries with plans from A$1.46. Scan a QR code before your flight, activate the moment you land, and pay once with no daily meter running.

How much does an eSIM cost for international travel?

HelloRoam eSIM plans for overseas travel start at A$1.46. Fixed plan sizes vary by destination, and each country page lists its own. Unlimited daily plans are sold in most destinations too. Compare that with Telstra or Optus day passes at 5 to 10 AUD a day. You save on roaming when you swap daily carrier passes for one prepaid HelloRoam eSIM price.

What is the best eSIM app to replace carrier roaming?

HelloRoam replaces carrier roaming with prepaid plans you buy and manage in one app. It covers 185+ countries with fixed plans, plus unlimited plans in most destinations, so you swap the daily Telstra or Optus charge for a single flat purchase. HelloRoam plans start from A$1.46, and prices vary by destination. Support runs 24/7 via WhatsApp, in your own language, if anything goes wrong while you're on the road.

What is the best eSIM for visitors coming to Australia?

HelloRoam offers prepaid eSIM plans for international visitors travelling to Australia, on local Australian networks. Speeds depend on the local network. You can pick fixed data or an unlimited daily option, and prices depend on the plan. The Australia page shows them before you buy. Visitors get instant data for customs queues, rideshares, and navigation the moment they step off the plane in Sydney, Melbourne, or Brisbane.

Does an eSIM save money over carrier roaming for Europe?

eSIM saves a lot compared to carrier roaming in Europe. Telstra and Optus day passes cost 5 to 10 AUD a day. At 10 AUD a day, a two-week trip stacks up to 140 AUD in roaming fees. A HelloRoam Europe eSIM covers your whole itinerary for one flat fee, working across the UK, France and Italy with no new SIM at each border. The Europe plan's page shows its prices before you buy.

Is it worth getting an eSIM when travelling overseas?

Getting an eSIM is worth it for any international trip. HelloRoam plans start at A$1.46, and you pay one prepaid price instead of Telstra or Optus roaming rates by the day. Activate before your flight, connect the moment you land, and pay zero daily fees or overages. Easy as.

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Sources

  1. GSMA — The Mobile Economy 2025(Accessed April 2026)
  2. FCC — International Roaming(Accessed April 2026)