The OnePlus Watch 2 is the first dual-engine smartwatch: it runs two operating systems using two different chipsets for each one, and it delivers killer battery life because of that...
OnePlus Watch 2 review: Battery champ with two brains and some issues
The Garmin Vivoactive 5 has a gorgeous OLED screen and it supports a big variety of workouts, plus all of that comes with multi-day battery life and an affordable price...