49-mm case size Flat sapphire front crystal with display edge protection, Certified–IP6X dust-resistant, Tested to MIL-STD 810H
100m Water-resistant, Swim-proof and recreational dive to 40 m
Blood Oxygen app, ECG app, High- and low-heart-rate notifications, Irregular rhythm notification, Cardio fitness notifications
Temperature sensing, Cycle Tracking with retrospective ovulation estimates
Surcharges: 1.2% Card & PayPal, 2% AmEx.
Holly crap that price 😳