They not only track these metrics, but also advise on what to do next such as letting you know when you’re stressed out and how to combat it. Unfortunately however not everyone is interested in this data so if it doesn’t matter to you, then this is one feature you will likely not need when buying a smartwatch.
New smartwatches when first introduced were goofy looking, clumsy gadgets, but the latest devices all look and work great. Adding to this, they offer several different customization options such as watch faces, straps and even battery life has been considerably improved and now lasts days on end.