Do I need an iPhone data plan for the Apple watch to work?

[Soulsearcher91]

The thing is, I do not have a data plan on my iPhone. What functions would still be available on the watch without it being tethered to a iPhone data plan? Thanks in advance

 

[Bbqthis]

If your phone is on wifi, then everything will work as normal. If you're out, anything that would use an Internet connection (social media, directions, Siri) will not. Health and fitness do not require Internet, neither does Apple Pay (to use).

 

[Night Spring]

Above post is correct. I set up my old iPhone 5 for my mom to use with her watch. She has a flip phone to make phone calls, the iPhone has no data plan.