Quick answers
- The cheapest data plan here is £3.01.
- Best value for a longer stay: Nomad 10GB for 30 days, £11.32.
- Unlimited data from Airalo: £50.18 for 30 days.
- Australia is outside the EU, so the big UK networks charge about £7 to £8 a day here.
- No restrictions: WhatsApp, FaceTime and other app calls work normally over Australian mobile data and Wi-Fi.
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Australia eSIM prices compared
All 19 plans we track, cheapest first within each length.
| Provider | Data | Lasts | Price (approx. in £) | |
|---|---|---|---|---|
| SailyOptus | 1GB | 7 days | £3.01US$3.99 · £3.01/GB | Go to Saily Provider link |
| NomadOptus, Telstra | 1GB | 7 days | £3.02US$4.00 · £3.02/GB | Go to Nomad Provider link |
| UbigiOptus | 1GB | 7 days | £3.02US$4.00 · £3.02/GB | Go to Ubigi Provider link |
| Sim Local | 3GB | 7 days | £5.85US$7.75 · £1.95/GB | Go to Sim Local Provider link |
| NomadOptus, Telstra | 5GB | 30 days | £7.55US$10.00 · £1.51/GB | Go to Nomad Provider link |
| SailyOptus | 5GB | 30 days | £8.29US$10.99 · £1.66/GB | Go to Saily Provider link |
| Sim Local | 5GB | 30 days | £8.49US$11.25 · £1.70/GB | Go to Sim Local Provider link |
| NomadBest value 10GB+Optus, Telstra | 10GB | 30 days | £11.32US$15.00 · £1.13/GB | Go to Nomad Provider link |
Show all 19 Australia tariffs
| Provider | Data | Lasts | Price (approx. in £) | |
|---|---|---|---|---|
| UbigiOptus | 10GB | 30 days | £12.07US$16.00 · £1.21/GB | Go to Ubigi Provider link |
| SailyOptus | 10GB | 30 days | £13.57US$17.99 · £1.36/GB | Go to Saily Provider link |
| Sim Local | 10GB | 30 days | £13.58US$18.00 · £1.36/GB | Go to Sim Local Provider link |
| AiraloOptus | Unlimited | 3 days | £8.68US$11.50 | Go to Airalo Provider link |
| HolaflyOptus, Telstra | Unlimited | 3 days | £8.98US$11.90 | Go to Holafly Provider link |
| NomadOptus, Telstra | Unlimited | 7 days | £18.86US$25.00 | Go to Nomad Provider link |
| AiraloOptus | Unlimited | 7 days | £20.00US$26.50 | Go to Airalo Provider link |
| Sim Local | Unlimited | 7 days | £20.37US$27.00 | Go to Sim Local Provider link |
| HolaflyOptus, Telstra | Unlimited | 7 days | £20.75US$27.50 | Go to Holafly Provider link |
| AiraloOptus | Unlimited | 30 days | £50.18US$66.50 | Go to Airalo Provider link |
| HolaflyOptus, Telstra | Unlimited | 30 days | £55.76US$73.90 | Go to Holafly Provider link |
Prices checked 25 September 2026. Most travel eSIM companies charge in US dollars, even to UK customers, so your bank converts the price when you pay. We show pounds at that day's rate (US$1 = £0.75458) with the dollar price underneath.
What UK networks charge in Australia
| Your network | Per day | A week | Details |
|---|---|---|---|
| EE | £8 a day | £56 | Zone 2 24h pass £8, buy on arrival Check with your network |
| O2 | £7 a day | £49 | O2 Travel bolt-on £7/day (Ultimate plans include some destinations) Check with your network |
| Vodafone | £8 a day | £56 | Global Roam Zone C/D, approx £8/day Check with your network |
| Three | £8 a day | £56 | Go Roam Around the World Extra £8/day (£7 on older plans), 12GB |
| giffgaff | Add-ons only | – | no daily pass; travel data add-on 1GB/5GB/10GB, 30 days, approx £6-£15 per GB tier |
| SMARTY | Add-ons only | – | PAYG by band (Roaming 1 e.g. US/TR 10p/MB, higher bands up to £5/MB) Check with your network |
| iD Mobile | £5 a day | £35 | Roam Beyond add-on from £5 (2GB, 1 day) Check with your network |
| VOXI | Add-ons only | – | ROW1 PAYG: 12p/MB, 60p/min |
| Lebara | Add-ons only | – | add-on 1GB/8 days £5 or 3GB/15 days £15 Check with your network |
| Tesco Mobile | Add-ons only | – | not Home From Home; data 1p/MB |
| Sky Mobile | £2 a day | £14 | Roaming Passport £2/day (£10 for 5 days), 25GB fair use |
| Lyca Mobile | Add-ons only | – | PAYG rates / country bundles, not checked Check with your network |
Checked 25 September 2026. Roaming prices depend on your exact plan and when you joined, so check with your network before you travel.
Mobile in Australia: what to know
Mobile networks
Coverage
Cities and towns are well covered, but large parts of the outback have no mobile signal at all; Telstra reaches furthest, and universal outdoor satellite text and voice coverage isn't due until December 2027.
Wi-Fi
Free Wi-Fi is available at major airports, public libraries, shopping centres, McDonald's and Starbucks, and in some city centres such as Melbourne, Brisbane and Perth (with daily data limits), but Sydney has no citywide network.
WhatsApp and FaceTime calls
No restrictions: WhatsApp, FaceTime and other app calls work normally over Australian mobile data and Wi-Fi.
Buying a local SIM
Easy but ID is checked: you register with your passport and an Australian address such as your hotel, often online, and Telstra accepts international passports. Buy from Telstra, Optus or Vodafone shops, Coles, Woolworths, petrol stations or airports. Prepaid recharges cost about AUD 44 to 45 for 28 days, and supermarkets often discount starter kits.
Emergency number
000 (112 also works from mobiles)
Tips for UK travellers
- Check your phone before you fly: since the 3G switch-off in October 2024, Telstra blocks overseas phones that can't make VoLTE emergency calls.
- For road trips, Telstra is the network to have, as it has the widest regional and outback coverage.
- Download offline maps and tell someone your route before remote outback drives, as many areas have no signal.
- Dialling 112 on a mobile also reaches emergency services, but it gets no priority over 000.
Common questions
Will my UK phone work in Australia?
Only if it supports 4G calling including VoLTE emergency calls; otherwise Australian networks such as Telstra will block it.
Do I need a passport to buy a SIM card in Australia?
Yes. Prepaid SIMs need ID verification before activation, and Telstra accepts an international passport.
Does 112 work in Australia?
Yes, 112 works from mobile phones and connects to the same emergency service as 000, which remains the main number.
Going somewhere else too?
Add more stops in the trip finder to see if a multi-country eSIM is cheaper.