https://www.theregister.co.uk/2017/09/15/why_the_apple_watch_with_lte_means_a_very_appley_sort_of_freedom/

While Apple was making the iPhone less dependent on a Mac or PC, this week, it was tying its Watch even closer to the iPhone - contrary to what Apple's marketing material wants you to think.

If you didn't know anything about Apple Watch Series 3 other than that it "now has a 4G SIM", you'd be forgiven for thinking this is a more independent computing device than its predecessors. Apple encourages you to think of "freedom" in its promotional material for AW s3: