Being a loyal Apple customer and being into fitness, this caught me by total surprise.
Or you can get it as part of the Apple One Package.
Here are some early reviews so far:
One of the cool looking features is that all your Apple watch stats show up on the screen during the workout, something my wife rolled her eyes about as she prefers to bring exercise into the body rather than focusing the mind on statistics and people, fair point.
I am going to give it a whirl this week I think, I'll report back.
Get a training session in this week, and stay hydrated!