Oceania is a vast and diverse region with widely varying mobile connectivity. Australia and New Zealand have advanced 5G networks, while many Pacific Islands still rely on 3G or limited 4G. Here's what you need to know for each destination.

Key considerations for travelers:

• Regional eSIMs are convenient for multi-country trips (e.g., Australia + New Zealand + Fiji).
• Country-specific eSIMs are often cheaper and offer better local performance for longer stays.
• Local physical prepaid SIMs are widely available in Australia and New Zealand, but require in-person passport registration.
• Roaming with your home provider is the most expensive option – daily roaming charges can hit $10–$20 per day.
• Pacific Islands: Many islands have limited coverage – check your provider's coverage map carefully.

This is the core decision for Oceania travelers. The table below helps you choose based on your travel style:

The following providers are recommended for Oceania travel. Prices are indicative (as of 2026) and may vary.

Prices are indicative (as of 2026) and subject to change. Always check provider websites for current offers.

Australia has excellent 5G coverage in cities and along major highways. Telstra offers the best rural and outback coverage, while Optus and Vodafone are strong in cities.

Top Networks

• Telstra – Best rural/outback coverage
• Optus – Strong urban coverage
• Vodafone – Good city coverage

Best eSIM Options

• LinkeSIM (AU/NZ) – 10GB/14 days: $11.60 USD, 5G
• Airalo (Australia) – 1GB/7 days: $7
• HelloRoam – Plans from $0.60/day, connects to Telstra, Optus, Vodafone
• Ubigi (Australia) – 3GB/15 days: 50 AUD

Local Prepaid SIM

• Telstra Visitor SIM – 30 GB / 28 days: ~30 AUD
• Optus Tourist SIM – 40 GB / 28-42 days: ~40 AUD
• Available at airports (SYD, MEL, BNE), supermarkets, and carrier stores. Passport registration required.

Links:

• Telstra
• Optus
• Vodafone Australia

New Zealand has good 4G/5G coverage on main routes, but signal is limited in Fiordland, the West Coast, and other remote areas.

Top Networks

• One NZ – Best overall coverage
• Spark – Strong in cities
• 2degrees – Good coverage

Best eSIM Options

• LinkeSIM (AU/NZ) – 10GB/14 days: $11.60 USD, 5G
• Airalo (New Zealand) – 1GB/7 days: $7
• HelloRoam – Plans from $0.60/day, connects to One NZ, Spark, 2degrees
• aloSIM – Spark network, free international phone number

Local Prepaid SIM

• One NZ Travel SIM – Available at Auckland Airport (AKL)
• Spark – Available at supermarkets and Spark stores
• 2degrees – Available at airports and carrier stores
• Passport registration required.

Links:

• One NZ
• Spark
• 2degrees

Fiji has good coverage on Viti Levu (Nadi, Suva, Coral Coast), but limited reception on outer islands (Yasawa, Mamanuca).

Top Networks

• Digicel Pacific – Best overall coverage
• Vodafone Fiji – Good coverage

Best eSIM Options

• Ubigi (Fiji) – 3GB/15 days: 50 AUD, uses Digicel Pacific
• aloSIM – Vodafone network, free international phone number
• HelloRoam – Plans from $0.60/day, connects to Digicel and Vodafone
• Airalo (Fiji) – Regional Oceania plan

Local Prepaid SIM

• Digicel Pacific – Available at Nadi Airport (NAN) and supermarkets
• Vodafone Fiji – Available at airports and carrier stores
• Passport registration required.

Links:

• Digicel Pacific
• Vodafone Fiji

Many Pacific Islands have limited mobile coverage – often only 3G and only in main towns. eSIMs are the most convenient option for multi-island travel, but check coverage maps carefully.

Coverage & Options

• Samoa: Highest eSIM prices in the world – average ~$32.76 USD per GB. Consider local SIM or pre-download maps.
• French Polynesia (Tahiti, Bora Bora): Vini Mobile and Vodafone are main providers. eSIMs with regional Oceania coverage are best.
• Guam: Docomo Pacific – Ubigi covers Guam.
• Nauru, Tonga, Vanuatu: Digicel Pacific – Ubigi and HelloRoam cover these.
• Papua New Guinea: B-Mobile – limited eSIM options, local SIM recommended.
• Solomon Islands: B-Mobile – check if your provider covers it.

Recommended eSIMs for Pacific Islands

• Ubigi – 11 countries in Oceania
• aloSIM – 9 countries, includes free international phone number
• Airalo – Regional Oceania coverage
• HelloRoam – 185+ countries (Oceania included)

Links:

• Ubigi
• aloSIM
• Airalo

• Install eSIM before you go: Validity usually starts at first network connection in the destination country. This avoids airport SIM queues and gives you immediate connectivity.
• Check device compatibility: Most iPhones from XS onward, Samsung Galaxy S20 and newer, and Google Pixel 3+ support eSIM technology. Dial *#06# – if you see an EID number, your device supports eSIM.
• Download offline maps: Signal is often weak or absent in remote areas (Outback, Fiordland, outer Pacific Islands) – offline maps are essential.
• Data allowance: 1-3 GB per week is enough for maps, messaging, and light browsing. Heavy users (streaming, hotshot) should plan for 5-10 GB+ per week.
• Australia outback: Signal can be non-existent on long stretches of highway. Download maps and music before leaving major towns.
• New Zealand South Island: Fiordland, West Coast, and Milford Sound have very weak signal – plan ahead.
• Pacific Islands: Many islands have limited coverage – check your provider's coverage map carefully before you travel.
• Local SIM registration: Passport registration is required in Australia, New Zealand, and Fiji. For short trips, an eSIM is more convenient.