What is the recommended mobile data allowance for a typical visit to Sydney?

For a standard 7 to 10-day trip to Sydney, CoreESIM suggests a data allocation of 5 GB to 10 GB. This range typically accommodates extensive use of mapping applications (e.g., Google Maps), public transport apps (e.g., Opal Travel), social media, email, and light web browsing. Travelers planning significant video streaming, large file uploads, or frequent tethering may consider a 15 GB or higher plan. While some public Wi-Fi exists, it is often less secure and less performant than dedicated eSIM data.