Will a used Apple Watch SE (1st Gen) work with iOS 18?

I’m planning to buy a used Apple Watch SE (1st generation) because it’s within my budget. However, my iPhone is already running iOS 18. Before I make the purchase, I want to know if the 1st gen SE will pair and work properly with iOS 18. I’ve seen some conflicting info online—some say it doesn’t work anymore. Can anyone confirm if it’s still compatible or if I’d be better off looking for a newer model?

iPhone 13 mini, iOS 18

Posted on May 20, 2025 6:29 AM

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Posted on May 20, 2025 6:42 AM

Yes, it will work. MAKE SURE the seller has properly prepared it or it will be useless, no matter what model watch or phone you have.


What to do before you sell, give away, or trade in your Apple Watch, or buy one from someone else - Apple Support


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Will a used Apple Watch SE (1st Gen) work with iOS 18?

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