The smart watch killer app is accurate fitness tracking. If you do any type of sports of exercise, especially outdoors, then it's nice to have.
If you're concerned about battery life then Garmin has models which can run for over a month, and have solar charging.
Well, I never heard of that too. I wear Citizen. [0]
> Also I thought we talk about smart watches with GPS
I had a lengthy response here, but it was throttled.
To sum up: since the smartwatches became a thing I attempted multiple times to justify why I should buy one, but the need to constantly monitor it's charge level, along with my smartphone and whatever else (bt-headset, tablet, another smartphone - depending on the period) always killed the idea. I still use a wired earphones with the same reasoning - I don't want to bother with charging them, I just plug them in and they work.
And the main point is still what I don't [yet?] have a killer feature in any smartwatches what would offset the charging hassle. Especially if it needed to be charged everyday (I don't think anyone lives on a 36h cycle and forgetting to charge them in the evening means they would die around noon).
https://www.citizenwatch.com/us/en/product/AU1065-58E.html?c...