Thailand eSIMs for Australians: choose the data structure before the price

If the Thailand holiday is mostly directions, bookings and app conversations, an assumed 8GB over eight days gives us a useful budget to price. Our 10GB/30-day plan at A$16.95 fits it with 2GB spare, while the eight-day 100GB-at-up-to-10Mbps option costs A$33.95. The extra A$17 buys a different allowance and continued reduced-speed data, rather than something every traveller automatically needs.

Change the job to ordinary Thai calls, frequent large uploads or essential laptop sharing, and the shortlist changes too. Compare the actual service for those needs instead of making every holiday fit the same “unlimited” headline.

We compare our Thailand eSIM plans with selected AIS, True and dtac tourist offers below. Prices and published terms were checked on 25 October 2026, with Australian dollars and Thai baht labelled separately.

These are selected current examples from our Thailand range:

These selected offers name AIS, start on the first supported-network connection and have a 60-day purchase-to-start window. They aren’t reloadable and don’t include ordinary Thai numbers, calls or SMS. The fixed offers describe speed as network dependent; the 100GB family has the stated speed ceiling.

On the fixed offers, data stops when the allowance is used. The 100GB family instead continues at 384kbps after the first 100GB, with up to 10Mbps before that threshold. The 100GB applies once across the selected period, rather than returning each day, and the network’s 5G label doesn’t remove the speed ceiling.

For an illustrative fifteen-day trip using 80GB, the fifteen-day option at A$52.95 leaves 20GB before its threshold. It is a plausible data fit if the speed conditions suit, rather than a promise that every app or work task will be satisfactory at either advertised speed.

Our fixed 10GB and 20GB plans make sharing dependent on the phone and local network. For the 100GB range, we haven’t added a separate sharing limit, but the supplier hasn’t confirmed that sharing is supported, which devices or networks permit it, or how shared data counts towards the 100GB. Don’t choose it for essential laptop work until those questions are answered.

If work depends on sharing, email hello@thesimshop.com.au with the exact offer, phone model and planned laptop use, including any important upload. We’ll check those requirements before you pay; if we can’t confirm a suitable connection, arrange appropriate Wi-Fi or another confirmed service for that task.

Our Thailand unlimited guide explains the 100GB family’s conditions in more detail. Read those before paying for the larger allowance, particularly if sharing or speed will decide the purchase.

Our seven-day 3GB-a-day plan is A$61.95. You get 3GB at faster speeds each day, then 384kbps until midnight in Thailand (UTC+7), when the faster allowance renews. A 6GB day uses more than that day’s faster data, even if the rest of the week is quiet. Seven lots of 3GB isn’t one 21GB balance you can spend whenever you like.

The separate seven-day 5GB/day variant has different terms, including a different network list, conditional hotspot and validity-extension reload. Its exact reduced speed and reset clock aren’t quantified, so don’t copy those numbers from the 3GB product. The Thailand daily-data guide explains those differences in more detail.

The useful question is how your use is distributed. One unusually busy upload day can favour a total pool; repeated high-use days can make a daily service worth comparing. Neither pattern is settled by the word “unlimited”.

The True and dtac tourist cards each show Infinite offers at THB499 for eight days, THB699 for fifteen days and THB1,199 for thirty days, explicitly including VAT. They advertise maximum-speed unlimited data and Thai all-network calling, with the per-call limit explained below.

The selected eight-day AIS tourist eSIM displays THB499, but its terms say prices exclude 7% VAT. On that stated basis, budget THB533.93 for AIS against True’s tax-inclusive THB499, a difference of THB34.93. The call inclusions differ too, so compare those as well as the final price.

AIS includes on-network calling and THB100 bonus calling credit for eligible domestic and international calls. Its selected unlimited terms retain speed management for heavy use, large transfers and hotspot sharing, without publishing a fixed daily threshold there. Treat that as the actual condition rather than importing a number from an older plan or another provider.

True and dtac’s Infinite terms limit included Thai all-network calls to fifteen minutes per call before additional charges. Their international benefits also differ: True lists THB100 credit through its specified international prefix, while dtac’s thirty-minute inclusion covers seven named Asian destinations and excludes Australia.

For ordinary calls to Australia, dtac’s included thirty minutes do not do the job. True’s THB100 credit uses its 00600 prefix; dtac’s named international allowance uses 00400. Neither is an unlimited Australian calling bundle. If you use an app to call home instead, that consumes data and is separate from these telephone benefits.

The separate ten-day tourist offer is data-only for outgoing service. Choose an Infinite voice-capable offer when ordinary Thai calls are part of the trip; the ten-day data product does not inherit those rights.

AIS says to register before use and no more than seven days before departure, with re-identification needed for continuous tourist use beyond sixty days. True and dtac require passport registration; their terms limit tourist SIM validity to no more than sixty days and direct users to re-identify for continued service after expiry. Follow the instructions for the operator and product you actually buy.

Also match the last required day. For a 31-day stay needing one uninterrupted 20GB allowance, exclude our 20GB/30-day offer: it expires a day too early and cannot be reloaded. A second purchase would be a separate service, not an extension included in that price.

For the eight-day, 8GB app-data example, our A$16.95 fixed offer covers the stated need. If you expect much more use, compare the total 100GB threshold with a daily allocation and check which days will be busiest. For ordinary Thai calls, include a registered voice-capable tourist offer. For essential laptop work, settle the sharing requirement before paying for a larger balance.

Check your exact phone’s compatibility and unlock status, buy your SIM Shop plan before departure and save the delivery email. Install after landing on working airport Wi-Fi, hotel Wi-Fi or another steady trusted connection. Our Thailand setup guide covers the device steps; use the order’s exact instructions for the plan you’ve bought.