I have the Fenix and it is great. My spouse wanted something similar so I got her the Vivoactive 3. I really like the Fenix but i think the Vivoactive 3 is quite competitive price wise. It does almost everything my fenix does for a fair bit less money. The only differences we have noticed is the number of sports programmed for the Vivoactive and she has to take it off when we go diving. Plus it is not quite as comprehensive as the Fenix info wise but so far i think i would have been fine with the Vivoactive and saved a few hundred. Overall she has zero complaints about the Vivoactive 3.