I used the Thai eSIMs on a long day trip to the Phi Phi islands.

It's about a 90-120 minute trip by ferry each way from the harbor in Phuket town.

Most of the journey, there was 5G. This was on the Airalo dTAC SIM which I used mostly for the trip outbound. Towards the end, when the ferry was approaching one of the smaller islands, it dropped to 3G and even with signal bars, there wasn't a connection. But as we rounded the smaller island (where the famous Maya Bay is) towards the main island, 5G came back.

But I also switched to the AIS eSIM at some point. I either hit the 50GB data limit or the 10-day period during the boat trip. So I switched to AIS eSIM.

Again, it dropped here and there on the trip back to Phuket harbor but was mostly available. I used a VPN so the speeds weren't great (around Phuket town without VPN, it's like 200 Mbps down, also the case in Bangkok and Chiang Mai) but it let me stream video for the long boat ride.

Both were great values, though as I mentioned, the Airalo is limited to 15 Mbps.

I really liked that eSIM is offered widely by Thai carriers. That isn't the case in Europe for prepaid.

Next up will be Singapore, probably get the eSIM directly from the carrier in that case. The choice in Airlo doesn't seem that competitive.

Is there any value in retaining the Airalo eSIM for other countries? The eSIM actually appears in the Settings app of my iPad as dtac, not Airalo. The Airalo app shows it as my current eSIM even though it's expired.

If I added another Airalo eSIM for another country, it would just be another entry, it appears, so not sure what the value would be to keep the dtac. I know there's a limit on the number of eSIMs you can have installed at one time.