A:AnswerIt should be. My S3 watch has worked with my iPhone 7 for 2 years and with an iPhone 11 for the last year. She may need to update the WatchOS, which can be initiated from the phone.
A:AnswerThat’s why you need to get AppleCare with it! They will repair it and even replace it for you if needed. I have AppleCare on all my Apple devices, It’d honestly be dumb to not have AppleCare on ur Apple devices. It’s a cheap monthly payment or u can pay for the full year instead, and they will fix any issues that may come up on it and I’d they can’t fix it then they replace it for you and ship the exact same one you had back to you for free. It’s just smart to do