Interesting product. I appreciate some of the practical touches of a diver's watch:
1. It has all the health monitoring things (heart rate, ECG, oximeter, sleep).
2. It has 30 day battery life.
3. It has a sapphire glass (scratch resistant).
4. It has 10 ATM water resistance (100 meters/330 feet).
On the other hand, the screen part of this watch seems very small, it doesn't run a standard smartwatch OS, and the water resistance isn't an outright claim of being waterproof (so likely OK for swimming but not scuba diving). An alternative like the Garmin Fenix (https://www.garmin.com/en-US/p/641479/pn/010-02158-13) seems more practical in terms of screen size, although it is pricier and doesn't have the oximeter.