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TurkeyBaster

Level 1 (21 points)

Overseas 5G eSIM compatibility with iPhone SE 3rd generation 4G

I have an Australian iPhone SE 3rd generation, MMXJ3X/A and am about to travel overseas. I want to know if I buy an overseas eSIM (for Vietnam), which advertises itself as 5G, will my 4G phone work with it or will it automatically drop down to 4G on their network ? I am reading conflicting accounts online.

Posted on Oct 16, 2026 6:04 PM

1 reply

Chattanoogan

Level 8 (43,489 points)

Oct 16, 2026 6:17 PM in response to TurkeyBaster

Your SE 3rd Gen iPhone is 5G capable … ???

iPhone SE (3rd generation) - Tech Specs - Apple Support

Presumably the Vietnamese eSIM will work just fine; assuming that your phone is not “locked” to a domestic carrier.

Originally posted at discussions.apple.com/thread/256377558