The Garmin Fenix 5X is the largest of three new Fenix 5 smartwatches and, as such, packs in the most power. This isn't only in terms of battery power – of which there is plenty – but tracking capabilities, too, thanks to myriad sensors and enough software smarts to track most sports.
Useful built-in maps; Excellent battery life; Support for lots of sports; Rugged and attractive
A bit heavy and bulky for some; Garmin Connect app is still overwhelming