The way the phones handle this is they let you pair it with iOS 10 on WatchOS 9, but the phone forces you onto WatchOS 10 once the watch running the old software is pared to the new iOS 17 phone.
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The way the phones handle this is they let you pair it with iOS 17 on WatchOS 9, but the phone forces you onto WatchOS 10 once the watch running the old software is pared to the new iOS 17 phone.
The way the phones handle this is they let you pair it with iOS 10 on WatchOS 9, but the phone forces you onto WatchOS 10 once the watch running the old software is pared to the new iOS 17 phone.