The Apple Watch Series 3 isn’t has some significant change to the Apple Watch Series 2: a built-in digital sim card on its cellular models.
Wrist watch news and reviews
Apple Watch Series 3 hands-on: The $399 stealth watch-phone - CNET
How to Set Up an Apple Watch for Kids, Family Members Without iPhones
Apple Watch Series 3 starts at $329 for WiFi-only and $399 for LTE, pre-order Sept 15 - 9to5Mac
Apple Watch Series 3 still being sold by Apple for now despite losing watchOS 9 support - 9to5Mac
Surprise! Apple Watch 9 just got discounted on - CBS News
watchOS 9 won't be available to Apple Watch Series 3, here are the supported devices - 9to5Mac
Hands on with the new Apple Watch faces in watchOS 9
Here's All The New Apple WatchOS 10 Features!
Watch OS 9.2 - Family Setup Home app?