ESSENTIAL HEALTH FEATURES — Temperature tracking provides richer insights into the Vitals app and ovulation estimates. You’ll also get a daily sleep score, sleep apnea alerts⁵, and alerts for high or low heart rates or irregular rhythms. EXCEPTIONAL BATTERY LIFE — Enjoy 18 hours of battery life³. Then charge up to twice as fast as SE 2 and get up to 8 hours of use in just 15 minutes. ALWAYS-ON DISPLAY — Now you can see the time and watch face without having to raise your wrist to turn on the screen. THE PERFECT WORKOUT PARTNER — SE 3 gives you multiple ways to track your workouts. With real-time metrics, you’ll reach your goals like never before. STAY CONNECTED — Text, answer calls, listen to music and podcasts, and get notifications. SE 3 (GPS) works with iPhone or Wi-Fi to stay connected. SAFETY FEATURES — SE 3 can detect a serious fall or car accident, automatically connect you to emergency services, and notify your emergency contacts. The Check In feature can automatically notify a loved one when you arrive at your destination. YOUR WATCH, THE WAY YOU WANT IT — Express yourself with dozens of easily customizable displays and a wide range of straps in different colors, styles, and materials.