The short answer
You hold an O2 or Three contract and a long flight to Sydney, and the choice is whether to roam or buy a travel eSIM first. I read what each carrier charges in Australia on 10 November 2026 and set it against the travel eSIMs I priced on 10 November 2026 and Ringo Light. For a trip of two weeks or more I would buy Ringo Light and keep my own SIM in for calls and texts.
Unlimited data at full speed for 2 weeks at $23.99 or 30 days at $35.99, nothing renews. Airalo asks $45 for 15 days and $66.50 for the month, and daily roaming charges climb past both.
10 GB for 30 days at $15 and 20 GB at $24, on Optus and Telstra with 5G. 3 days of unlimited at $11.
Days, not gigabytes: $27.50 for a week, $51.50 for 15 days and $76.50 for a month; sharing limited to 1 GB a day.
60 GB at full speed for 30 days at $65, then 2 Mbps. On Optus.
Prices read on 10 November 2026: Airalo, Holafly, Saily, Nomad, Ubigi, O2, Three, Three, European Central Bank, Ringo Light on their own sites or listings, Ringo Light from its catalogue. All in US dollars unless stated. Treat every number as a snapshot.
See the full price index for every country.
The prices, charted
US dollars, 10 November 2026. The rivals sell 15 days, Ringo Light 2 weeks. Ubigi's 15 days is 30 GB at full speed, then 2 Mbps.
The 30-day plan at each brand. Nomad sells no 30-day unlimited.
Holafly sells no buckets. Ringo Light sells no bucket either: its 2 weeks is unlimited, so it lasts 2 weeks, not 30 days.
Side by side
Swipe to compare →
Get Ringo Light for Australia, from $23.99.
Installed once, next to your own SIM. Your eSIM arrives by email in seconds.
- 2 weeks $23.99
- 30 days $35.99
We sell data eSIMs for now to fund the full Ringo service. Ringo is self funded. Every plan bought here pays for the build of one plan that works everywhere.
Want to keep your own number abroad?
That is the full Ringo service: one plan that works everywhere, with your own number included.
It is a separate product from Ringo Light and it is still being built, so it is not on sale yet. Join the waitlist to hear when it opens.
What to see in Australia, and what your phone needs for it
Eight places most trips from Britain include, from Sydney to the Red Centre and Tasmania. Whichever plan you pick, the tip under each one is where your phone matters, and out on the reef, in the desert and in the Tasmanian parks, signal thins out.
Roam with your carrier, or buy an eSIM
O2 Travel works in Australia at £7 a day, charged only for days of use, and each charge covers 24 hours from first use. At the ECB reference rate of 10 November 2026, £1 = $1.34, so one day is about $9, three days £21 (about $28), two weeks £98 (about $132) and a month £210 (about $282). Three lists Australia in Go Roam Around the World, at £8 a day (about $11) on plans joined on or after 18 December 2025 and £7 on earlier ones. That makes about $32 for three days, about $150 for two weeks and about $322 for thirty days at the £8 rate. I read all of it on 10 November 2026. Three's page did not show pass prices that day, so I leave passes out.
Ringo Light is one payment per trip. For Australia it sells 2 weeks at $23.99 and 30 days at $35.99. Two weeks is about $132 on O2 against $23.99, and a month is about $282 on O2 and about $322 on Three against $35.99. This is a long way to fly, and people stay, so the carrier arithmetic runs against you fast.
Among the travel eSIMs, Ringo Light is also the cheapest unlimited for two weeks and a month. Ubigi asks $42 for 15 days, Airalo $45, Saily $48.99 and Holafly $51.50, and for a month the rivals run $65 to $76.50. For a long weekend it is the other way round: Ringo Light has no 3-day plan, and Nomad charges $11, Airalo $11.50 and Holafly $11.90 for 3 days of unlimited, against about $28 on O2.
What O2 and Three win is real, and I do not wave it away. Your UK number keeps ringing, calls and texts come with it, nothing needs installing, a phone with no eSIM slot works, and the charge lands on a bill you already pay. For a single day, such as a stopover, O2's £7 is the right call, cheaper than any 3-day eSIM here. Beyond that I would buy a plan before the flight.
Networks in Australia, and what changes for a visitor from the UK
Australia has three national networks, Telstra, Optus and Vodafone, and coverage is the one place where the network matters as much as the price. Telstra reaches far more of the outback and the highways than Optus. Airalo, Holafly, Ubigi and the unlimited plans from Nomad ride Optus, Nomad lists Telstra on its buckets, and Saily does not name its network. Ringo Light uses a local partner network. For Sydney, Melbourne, Brisbane and the east coast I would not pick a plan on network. For the Red Centre or the Nullarbor I would download offline maps first.
The carrier passes have terms of their own. O2 calls the bolt-on unlimited, caps roaming speed at 2Mbps and names no fair use rule, and calls to the UK and within Australia are unlimited while other countries cost standard roaming rates. Receiving a call or text does not start the day charge, and you switch it on by texting TRAVEL to 23336. O2's page offers the bolt-on to Pay Monthly plans. Three's Go Roam page allows up to 12GB of data a month in a Go Roam zone as its fair use limit, and the page does not state a hotspot rule, so I would ask before I tethered a laptop.
The travel eSIMs here are data only, with no Australian number. Calls go over apps that use data, such as WhatsApp or FaceTime.
If you want a data bucket: Nomad
- Nomad, $15 for 10 GB. The cheapest 10 GB for 30 days and the cheapest 20 GB at $24, on Optus and Telstra with 5G.
- Ubigi, $16 for 10 GB. On Optus with 5G. Its bigger plans switch to 2 Mbps when the full-speed data runs out, instead of stopping.
- Saily, $17.99 for 10 GB. 20 GB at $29.99, with every Saily price taken from saily.com.
- Airalo, $18 for 10 GB. The biggest name, on Optus, with 20 GB at $30.
- ✓Ringo Light, no buckets. Its 2 weeks is unlimited for $23.99 and its 30 days unlimited for $35.99. If you need 10 GB to last a whole month, Nomad at $15 is the better buy, and its 20 GB at $24 is cheaper than Ringo Light too. I would buy Ringo Light for unlimited, not for a bucket.
What Ringo Light is
Ringo Light is Ringo's own data eSIM, and I write for Ringo, so weigh that. It is sold to fund the full Ringo, one plan that works everywhere with your own number ported onto it. For Australia it sells two trips, both unlimited data at full speed: 2 weeks at $23.99 and 30 days at $35.99. Nothing renews. The eSIM arrives by email in seconds and installs in one scan, no app.
It sits next to your own SIM, so your UK number keeps working for calls and texts if you leave roaming on for those. O2's page says calls to the UK and within Australia are unlimited, though I would check how your carrier bills the day before leaning on that.
The card to buy it is further up this page, just after the side-by-side table.
Pick by trip
O2 Travel. A single £7 day, about $9, no purchase and nothing to install.
Nomad unlimited, 3 days, $11, or Airalo at $11.50. Ringo Light has no 3-day plan in Australia, and O2 would be about $28.
Ringo Light unlimited, 2 weeks, $23.99, against about $132 on O2 or about $150 on Three.
Ringo Light unlimited, 30 days, $35.99, against about $282 on O2 or about $322 on Three. Ubigi is $65 for 60 GB on Optus.
Nomad 10 GB for 30 days at $15.
Keep your own SIM in beside the eSIM. O2 and Three carry calls and texts on your number and the travel eSIMs do not; the full Ringo, which Ringo Light funds, ports the number you have.
Frequently asked questions
How we compared, and our sources
Airalo, Holafly, Saily, Nomad, Ubigi, O2, Three, Three, European Central Bank, Ringo Light, Ringo Light
We priced Airalo, Holafly, Saily, Nomad, Ubigi and Ringo Light for Australia on 10 November 2026, all on the same day, in US dollars. Each rival's price comes from its own website where it showed dollars, otherwise from an esimdb.com listing, and every source and its date is listed below. Ringo Light's prices come from the catalogue our checkout charges.
We compare the trips people actually book: a week, two weeks and a month of unlimited data, and a 10 GB bucket. We read each brand's fair use and speed rules and quote them as the brands state them. We did not run speed tests, so this page makes no speed claims for any brand.
Ringo Light is our own product. We put it in the table on the same terms as everyone else, and where a rival is the better buy the page says so.
Left out: Revolut. I could not read its own prices for Australia on the day, so it has no bar in the charts and is not guessed. Left out: Maya Mobile. I could not read its own prices for this country on the day, so it stays out rather than being guessed.
- Airalo: www.airalo.com/australia-esim?currency=USD, unlimited read on the site in dollars, 10 November 2026; buckets (10 GB $18, 20 GB $30) from the esimdb listing dated 4 October 2026
- Holafly: esim.holafly.com/esim-australia/, dollar prices read on its own page, 10 November 2026
- Saily: saily.com/esim-australia/, prices in dollars on saily.com, read 25 October 2026; not readable on 10 November 2026, figures kept from 25 October
- Nomad: www.nomadesim.com/australia-esim, dollar prices and networks read from the page data, 10 November 2026 (the page shows euros)
- Ubigi: cellulardata.ubigi.com/rates-and-coverage/australia-data-plans/australia-10gb-30-days/?wmc-currency=USD, 10 GB $16 read on its own page, 10 November 2026; the other plans (25 GB $32, unlimited 7 days $22, 15 days $42, 30 days $65) from the esimdb listing dated 4 October 2026
- O2: www.o2.co.uk/international/o2-travel, O2 Travel bolt-on page, read 10 November 2026: £7 a day, charged for the 24 hours from first use, unlimited data capped at 2Mbps while roaming, unlimited calls to the UK and within the destination, for Pay Monthly plans; the destination is on the page's list of 75 countries
- Three: www.three.co.uk/go-roam, Go Roam daily charges of £8 for plans joined on or after 18 December 2025 and £7 for earlier ones, and the 12GB a month fair use limit, read 10 November 2026
- Three: www.three.co.uk/support/roaming-and-calling-abroad/roaming-abroad/roaming-destinations, roaming destinations page, read 10 November 2026: Australia is listed under Go Roam Around the World
- European Central Bank: www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml, euro reference rates of 10 November 2026, the latest published that day, used for the dollar figures (£1 = $1.34)
- Ringo Light: ringoesim.com/australia, the catalogue the checkout charges, read the same day
- Ringo Light: our own catalogue, the prices the checkout charges on 10 November 2026.
Written and priced by the Ringo team. Prices change often; if you spot one that has moved, tell us through the contact page and we will update the table.
