Smartwatches are one of those things where not everyone needs but secretly they do want one. Sure, it's nice to have a smartwatch but it just eliminates just one less step of pulling out your phone.
Lightweight; Comes in a variety of case and band options; Nice display; Watch is super quick; Siri on the Apple Watch is a nice addition; Good selection of watchfaces to choose from
Battery life hasn't increased from previous models; Can be pricey depending on what bands/case you choose; Getting around watchOS 4 is a bit convoluted; LTE connectivity is limited to two carriers