Fenix HR. But I think most of Garmin's line has at least some basic notification functionality, even down to the inexpensive Vivo line.
Fenix HR specifically because trail runner (need the extra battery for those really long runs), hiker (alt/bar/compass is nice), and all-around outdoorsy guy (device signals my outdoorsiness), in case that was the nature of your question.
Fenix HR specifically because trail runner (need the extra battery for those really long runs), hiker (alt/bar/compass is nice), and all-around outdoorsy guy (device signals my outdoorsiness), in case that was the nature of your question.