Operator roaming options, checked on each operator's own site, next to live eSIM prices by destination. Keep your home SIM for calls and texts; use the eSIM for data.
See every saving in one table →Optus sells prepaid International Roaming packs in Zone 1, covering the USA, the UK, Europe, Japan, Thailand, Vietnam, Indonesia (Bali), Singapore, Malaysia, Hong Kong, South Korea, New Zealand, Turkey, Dubai (UAE) and Canada. The packs run 1 day with 1GB and 25 calls, 14 days with 5GB and 50 calls, 28 days with 10GB and 100 calls, or 186 days with 15GB and 100 calls. Postpaid customers on eligible plans use the Optus Roaming Pass instead, charged per day of use: 1GB plus unlimited standard calls and texts per 24 hours. Full detail sits on the Optus roaming page.
Telstra splits roaming by pass type. Zone 1 Day Pass covers New Zealand; Zone 2 Day Pass gives 2GB a day with unlimited standard calls and SMS, charged per day of use. Prepaid customers get separate Travel Packs: 3 days with 0.4GB and 15 calls, 7 days with 2GB and 25 calls, or 14 days with 4GB and 50 calls. See Telstra roaming.
Vodafone Australia charges daily roaming that uses the home plan's allowance across 100+ destinations, for up to 90 days a year. Prepaid customers buy Roaming Add-ons of 1, 3 or 7 days. See Vodafone Australia roaming.
Optus roaming is switched on or off in the My Optus app or My Account. Telstra's Day Pass is turned on in My Telstra under Extras, International Roaming, and can take up to 2 hours to activate; it then starts when the service is used in an eligible destination. Telstra charges the Day Pass on any day you call, text or use data, but receiving an SMS does not trigger it, and unused data expires at the end of each day. Your device must support VoLTE roaming to make or receive calls on Telstra. Vodafone charges only on days you call, text or use data in an included destination, counts days in 24-hour blocks from first use, and does not charge for receiving messages.
A Slashtel prepaid data-only eSIM covers 190+ countries. The home SIM stays in the phone for calls, texts and bank codes, while the eSIM carries mobile data on local networks with automatic network selection. Install it by QR code before the trip and switch it on when you land. A data-only eSIM has no phone number, so calls and texts stay on the home SIM or go over internet apps. Check the table on this page for the destinations where the eSIM costs less than the operator pack.
Facts checked 26 October 2026.