Healthand fitness features. Wareable. Where the Apple Watch SE differs from the Series 6 (and Series 5) is in what you don’t get. There’s no ECG or SpO2 sensor, so if you’re looking to max Innovativehealth and safety features. And now with carbon-neutral case and strap combinations. Apple Watch SE offers totally loveable features at a feel‑good price. Find a Store. A first for Apple Watch. A major step towards 2030. Apple Watch SE should not be used for scuba diving, waterskiing, or other activities involving high-velocity 8 VO2 Max. Your VO2 Max information gathered by your Apple Watch is stored in the Health app on your iPhone. Rick Stella/Insider. Tracking your VO2 fitness levels or AppleWatch SE features the same accelerometer, gyroscope, and always-on altimeter as Apple Watch Series 6, and with the latest motion sensors and AppleWatch Ultra 2, Apple Watch Series 9 and Apple Watch SE require iPhone Xs or later with iOS 17 or later. FineWoven and stainless steel bands are not water-resistant. AppleWatch SE 2 health and fitness tracking. The Apple Watch SE 2’s second-generation heart rate sensor doesn’t have an electrocardiogram feature, and it doesn’t track your TheApple Watch SE 2 comes in 40mm and 44mm sizes, starting at $249 for the GPS model and $359 for the GPS + Cellular model. The Fitbit Charge 6 offers AppleWatch SE gets you more features for less. Trade in your eligible Apple Watch and explore financing options. Health Features. Get high and low heart rate and irregular rhythm notifications. Apple Watch Ultra 2, Apple Watch Series 9 and Apple Watch SE require iPhone Xs or later with iOS 17 or later. Openthe Health app on your iPhone. Follow the onscreen steps. If you don't see a prompt to set up, tap the Browse tab, then tap Heart > Electrocardiograms (ECG) > Set Up ECG App. After you complete set up, open the ECG app to take an ECG. If you still don’t see the app on your Apple Watch, open the Watch App on your iPhone and tap AppleWatch Ultra 2, Apple Watch Series 9 and Apple Watch SE require iPhone Xs or later with iOS 17 or later. Features are subject to change. Some features, applications and services may not be available in all regions or all languages. View complete list. Bands subject to availability. oA31vE.