Smartwatches still haven't found anything they are good at, except for showing notifications and tracking your heartrate (and even that is iffy).
Their advantage is use-speed and availability, but their disadvantage of size (and everything that is the result of that) limits their usability quite a lot. IMO their current focus as fancy accessories for smartphones is making them a disservice; usually whatever you are doing is done faster and easier by just taking the phone out.
A more independent device is IMO needed, one that is not reliant on either a phone, or any connection at all (sry, no IoT needed). Sure, it could still connect to a phone to show notifications or similar, but focus should be on use-speed and comfort; if executing an action takes more than ~10 seconds on the watch, it is not needed (if the device is not easy to wear [small, light, without the need to strap it firmly], it is not designed well).