Samsung Galaxy Watch6 Classic (Black, 43mm) | Rotating Bezel | LTE | Monitor BP and ECG | Track Sleep | Track Health | Upto 40hrs Charge with Fast Charging | Galaxy Ecosystem | IP68 Rating

This Samsung Galaxy Watch 6 Classic is great if you're serious about fitness and health tracking. It has a rotating bezel, LTE, monitors BP and ECG, tracks sleep, and boasts a long battery life. It's a bit pricey, but the 40-hour battery life is less than some competitors.