When you're out on the boats around Koh Tao, Thailand, preparing for a dive, your EastESIM will provide strong 4G/5G coverage, allowing you to check dive conditions or message your dive buddies. However, as soon as you descend beneath the surface of the Gulf of Thailand to explore vibrant coral reefs and marine life, cellular signals cannot penetrate water. So, while you'll be well-connected on land and at sea level, expect to disconnect digitally while enjoying the underwater wonders of Koh Tao.
HELP CENTER
Will my EastESIM internet work while I'm diving off Koh Tao, Thailand?
Updated April 22, 2026
Was this answer helpful?
Related questions
Other answers in this topic that travelers found useful.
Can I set up my eSIM for Paris before I arrive at CDG airport?
Absolutely! It's highly advisable to purchase and set up your EastESIM eSIM before departing for Paris. You'll receive a QR code via email; …
Read answerHow much mobile data (GB) do I need for a trip to Santiago?
For a 5-7 day trip to Santiago, 5-10 GB of mobile data is usually sufficient. This allows for navigation using apps like Google Maps around …
Read answerDoes my phone need to be unlocked to use an eSIM in Seoul?
Yes, to use an eSIM from providers like EastESIM in Seoul, your smartphone must be unlocked by your home carrier. Most modern phones support…
Read answerWhich mobile networks do eSIMs use in Seoul for fast 5G/4G?
eSIMs in Seoul, including EastESIM, typically utilize South Korea's robust mobile networks like KT, SK Telecom, or LG U+. These carriers off…
Read answerWhat's the best eSIM for data in Sydney, Australia?
For reliable mobile data in Sydney, an eSIM that utilizes major Australian networks like Telstra, Optus, or Vodafone is ideal. EastESIM offe…
Read answer