Is roaming free in Thailand with my home country SIM or EastESIM?

Generally, roaming in Thailand with your home country SIM (from the US, UK, Australia, etc.) is not free and can incur very high daily or per-MB charges. EastESIM, however, offers a much more cost-effective and convenient solution. It functions as a local data plan, connecting you directly to Thai networks like AIS or TrueMove H at local rates, bypassing expensive international roaming fees altogether. It's the smart way to stay connected whether you're in Bangkok or on the islands of Phuket.