Product info
Sydney eSIM plans
| Unlimited data · 5 days | $17.99 | Buy eSIM |
| Ohayu recommendsUnlimited data · 10 days | $31.99 | Buy eSIM |
| Unlimited data · 15 days | $36.99 | Buy eSIM |
| Unlimited data · 30 days | $56.99 | Buy eSIM |
| 3GB prepaid eSIM · 15 days | $7.49$2.50 / GB | Buy eSIM |
| 5GB prepaid eSIM · 30 days | $10.49$2.10 / GB | Buy eSIM |
| 10GB prepaid eSIM · 30 days | $16.49$1.65 / GB | Buy eSIM |
| 15GB prepaid eSIM · 60 days | $21.99$1.47 / GB | Buy eSIM |
| 20GB prepaid eSIM · 30 days | $27.79$1.39 / GB | Buy eSIM |
| 50GB prepaid eSIM · 30 days | $62.49$1.25 / GB | Buy eSIM |
You can install your eSIM before the trip and activate it when you arrive in Australia. Validity starts after eSIM activation.
Plan details
How much mobile data you need
What's the best eSIM for Sydney?
Long weekend – 3 GB
Maps, ferry timetables, photographs.
A week – 10 GB
Navigation, calls, a Blue Mountains day.
Sydney and Melbourne – 20 GB
Both cities on one plan.
Working from Surry Hills – Unlimited
Tethering a laptop from a café.
Coverage and network
Coverage around the harbour
Australia mobile networks
Australia averages 116 Mbps at 41st worldwide, with Sydney at 128 Mbps. What is worth knowing here is how much of the city sits on water: ferries, headlands and harbour beaches all behave a bit differently from a normal street grid. (Speedtest by Ookla, June 2026)
Speedtest Global Index · Mobile · Sydney · June 2026
Download
128.23 Mbps
Upload
12.33 Mbps
Latency
17 ms
Global rank
#73 of 98
Sydney, specifically
- CBD, Surry Hills, Bondi: Strong across the centre and the eastern beaches, indoors as well as out.
- Ferries and the harbour: The Manly and Parramatta River runs keep signal almost the whole way, since you are never far from a built-up shore.
- Trains and the Metro: Covered on the suburban network and through the newer Metro tunnels. The older underground sections around Town Hall and Wynyard can dip between stations.
- Blue Mountains: Katoomba and Leura are fine. The moment you drop below the escarpment on a bushwalk it goes, and the Grand Canyon track has nothing.
New South Wales and beyond
The plan works nationwide, so Melbourne, Brisbane or a Tasmania leg are already included.
How to install eSIM
Connected in 3 steps
- 01
Buy before you fly
Choose your data plan before your trip.
- 02
Download & install
Log in to your account, tap your eSIM, and follow the on-screen instructions.
- 03
Land & activate
Activate when you arrive in Australia. Turn on roaming for the eSIM and it connects to a local network.
Before you buy, make sure your phone supports eSIM — see Ohayu compatible devices list or dial *#06#. It's a free request to your phone's settings. If you see the EID number — your phone is eSIM-compatible.
Arriving in Sydney
Airport Wi-Fi at SYD
Sydney Airport has free Wi-Fi across the international and domestic terminals if you need to install on arrival.
Side by side
Sydney eSIM Comparison
Indicative comparison based on publicly listed Australia plans as of July 2026. Competitor pricing and policies change - check their sites for current terms.
Frequently asked questions
Where to buy a SIM card in Sydney?
Vodafone and Optus have kiosks in T1 international arrivals during busy periods, and Telstra has a store on the departures side. Airport prices run A$30-60; supermarkets in the city are cheaper. An eSIM skips the stop.
Do I need ID to buy a prepaid SIM in Australia?
Yes. Prepaid services in Australia have to be identity-checked before activation, under an ACMA determination that has been in force since 2017. A passport is accepted at the counter. Ohayu plans are data-only with no Australian number issued, so nothing needs registering.
Does it work on the ferries and in the Blue Mountains?
Ferries, yes - the harbour runs stay in range of built-up shoreline almost throughout. The Blue Mountains are split: the towns along the ridge are covered, but descending into the valleys on a bushwalk loses it quickly. Download trail maps before you set off.
eSIM not working in Sydney?
Confirm the Ohayu eSIM is your data line and that roaming is on for it, then cycle Airplane mode once. If you are below the escarpment in the Blue Mountains there may be no coverage to find. Chat and support@ohayu.com run 24/7.
