Truphone

Truphone specializes in data-only eSIMs, making it a solid choice for travelers who don't need voice or SMS. Their 100GB plans for 30 days give you plenty of browsing and map usage across Australia without running dry mid-trip. The service stands out for Apple Watch compatibility, so you can stay connected on your wrist if your phone runs out of battery or you leave it behind.

This works best for travelers with secondary devices or those who prefer messaging apps over traditional SMS. The lack of voice means you'll rely on WhatsApp, iMessage, or Telegram for calls, which suits most modern travelers but may feel limiting if you need to call local businesses or taxis. The 30-day validity gives you a full month to explore at a relaxed pace.