Apple Watch GPS capabilities

What the Apple Watch GPS-only can do without an iPhone (there is information about the cellular model as well)

https://support.apple.com/en-us/HT205547

https://www.imore.com/heres-what-apple-watch-can-do-without-iphone

Summary. The GPS only Apple Watch with an iPhone nearby can do Everything the cellular model can do. The Cellular model can do a few communications related things away from the iPhone that the GPS model cannot do.

This should be of interest to you.......https://support.apple.com/en-us/HT205547

Yes. I use a Series 4 Apple Watch with GPS only. I always get any phone calls and text messages on my watch as long as the phone is nearby/