Compare Apple Watch Series 9 (GPS) 45mm Starlight Aluminium Case with Starlight Sport Loop - Small

S9 chip enables superbright display and the ability to quickly and easily interact with your Apple Watch without touching the screenBlood oxygen tracker, ECG, heart tracker, and temperature sensing provide overall insights into your well-being and menstrual cycleREM, Core, and Deep sleep tracker help to keep track of your sleeping stages, habits, and qualityWorkout app gives you a range of ways to train, plus advanced metrics for more insights about your workout performanceApple Watch includes three months of Apple Fitness+ for free to help you stay activeFall Detection, Crash Detection, and Emergency SOS can quickly connect you with emergency services in the event of a fall, car crash, or emergencyWatch can unlock your Mac automatically, get approximate distance and directions to your iPhone with Precision Finding (on supported iPhone models), and pay and send money with Apple PayDurable design with crack-resistance, IP6X-certified dust-resistance, and 50m of water resistance ensures long-term useWorks with your iPhone or Wi-Fi to keep you connected so you can send a text, take a call, listen to music and podcasts, use Siri, and get notifications on the go