A:AnswerIf you buy the one that it’s cell phone too yes, you just add the line to the watch, but if you buy the one that it’s only gps, no, you definitely need an iPhone to pair and accept phone calls and messages
A:AnswerYes. Actually it’s even better than a fit bit. Because he has all the different workouts and it tells the calories you burn and time. More accurate detailing.
A:AnswerIt can be changed by Apple at a cost of $79, possibly cheaper by some of the 3rd party phone repair shops. I would not recommend a consumer attempt it as it requires advanced skills and tools that most wouldn't have readily available (ie heating pad) and would likely cost more than $79.
A:AnswerI think the feature you are talking about is called Schooltime, which was introduced with WatchOS 7.
watchOS 7 was released on September 16th, 2020 for Apple Watch SE, Apple Watch Series 6, Apple Watch Series 3, Apple Watch Series 4, or Apple Watch Series 5 paired with iPhone 6s or later running iOS 14 or later.
A:AnswerNo. As of the current model, the Apple Watch Series 6, this is not among the features. You can buy BPMs that integrate with your smart phone via an app though.
A:AnswerI have had the apple watch 3, and now the 5. And my mom has the 3. All the apps work well, but have improved over time. I would go with 3 and newer. Not just because the apps have gotten better but because when you upgrade your phone, you won’t have to always upgrade to a new watch.