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What is the best and cheapest SIM card for using with unlocked iPhones while touring Southeast Asia, Korea, India, Vietnam, and the US?

May 15, 2025
a month ago
Fred ******
ORIGINAL POSTER
What is the best and cheapest sim card to use with 2 unlocked iphones for a couple touring multiple countries in southeast asia, in particular 5 months in Thailand, 2 months in Korea, 2 months in India, 2 months in Vietnam, 1 month in the US?
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TLDR : Answer Summary
For a couple touring Southeast Asia with unlocked iPhones, consider using eSIM options like RedTeaGo for affordable service in the region. Additionally, for connectivity in China, Airalo is recommended.
Cesar *******
Check for eSims. In South East Asia I use RedTeaGo, works well and its inexpensive. For China, go for Airalo.
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