Apple Watch Series 8 45mm Most crack-resistant Certified IP6X dust resistant Always-On Retina display Nearly 20% more screen area than Apple Watch SE Edge-to-edge display 50m Water Resistant 6 Swimproof 6 Blood Oxygen app 2 ECG app 1 High and low heart rate notifications Irregular heart rhythm notification 9 Emergency SOS 5 International emergency calling 10 Temperature sensing 3 Cycle Tracking with retrospective ovulation estimates 4 Fall and crash detection Compass Cardio fitness notifications Available cellular connectivity 10 Supports Family Setup (GPS + Cellular models) 11 Up to 18 hours 8 Faster charge Technical specifications Go to apple.com/watch/compare for a complete set. Shipping Info Standard - 4 to 10 business days Ship Info Premium - 1 to 2 business days Warranty Apple One (1) Year Limited Warranty - click here for more info Component country Imported Assembled country China