A:AnswerApple Watch First Generation is compatible with iPhone 5 or later, running iOS 8.2 or later. ... LTE is compatible with iPhone 6 or later, and Non-LTE is compatible with iPhone 5s or later. Both need iOS 11 or later.
A:AnswerYes there is a difference between GPS watch vs Cellular watch. Cellular gives you feasibility to receive calls on the watch.
GPS
Apple Watch Series 3 (GPS) lets you send and receive text messages, answer phone calls, and receive notifications when it’s connected to your iPhone via Bluetooth and Wi-Fi. The built-in GPS works independently of your iPhone for distance, pace, and route mapping in workouts.
GPS + Cellular
Apple Watch Series 3 (GPS + Cellular) has all the same features, as well as built-in cellular. It gives you the freedom to send and receive text messages, answer phone calls, receive notifications, and stream Apple Music and Apple Podcasts — even when you don’t have your iPhone with you.
A:AnswerIf your phone is nearby. If you're going to want to leave your phone elsewhere (turned on by the way) You will need to have the +cellular Apple Watch. The regular GPS model can only be used to make and receive calls or texts if your phone is within reach of your watch. (signal wise) Hope this helps!
