41mm
- Swimproof
- Most crack-resistant front crystal
- Certified IP6X dust resistant
- Always-On Retina display Nearly 20% larger than Apple Watch SE
- Over 50% larger than Series 3
- Blood Oxygen app
- ECG app
- High and low heart rate notifications
- Irregular heart rhythm notification
- Emergency SOS
- International emergency calling
- Fall detection
- Cellular available
