You said, " If you leave the country before that, the 90 day count down clock stops and starts back up when you stamp in to thailand again." Just to be clear, if you leave and then return does the clock reset or does it pick up from where you left off? That is, does the 90 day reset back to 1 or if, for example, you were at day 50 when you left, does it continue at day 51 when you return?
Also, do you need to take any documentation with you, aside from your passport?
Thanks!
And for everyone else, this date duration calendar may be useful:
According to the agent who assisted me, getting the residential house registration (“Yellow Tabien Baan”) is very difficult. You have to apply to get it after working in Thailand for 10 years.
I used an AIS eSIM in Thailand earlier this year and it worked flawlessly. My speeds were much, much faster than what I experience in the U.S. I've used both physical SIMs and eSIMs and I now prefer the later. Any iPhone or Android phone made in the last two years or so will support two eSIMs. However, if you still prefer a physical SIM, you'll have to buy an Android phone.