This product was release in Sept 2017 so I would say its past end of the line. The Vivoactive 3 music was released June 2018 and then Vivoactive 4 in Sept 2019. Frankly I am surprised how many are still available for purchase brand new from so many retailers.
Like cell phones, these fitness trackers have reached maturity and with each release have less compelling features. I think they going to have a tougher time getting people to upgrade moving forward.