Blood Oxygen app
Blood Oxygen app measurements are not intended for medical use, including self-diagnosis or consultation with a doctor, and are only designed for general fitness and wellness purposes.
ECG app
The ECG app is available on Apple Watch Series 4 and later (not including Apple Watch SE) with the latest version of iOS and watchOS. See apple.com/ie/watch for compatibility details. ECG is not intended for use by people under 22 years old. With the ECG app, Apple Watch is capable of generating an ECG similar to a single-lead electrocardiogram.
Crack resistance
Crack resistance compared with previous generation.
Dust resistance
Apple Watch Series 7 is rated IP6X dust resistant.
Water resistance
Apple Watch Series 3, Apple Watch SE and Apple Watch Series 7 have a water resistance rating of 50 metres under ISO standard 22810:2010. This means that they may be used for shallow-water activities like swimming in a pool or ocean. However, they should not be used for scuba diving, waterskiing or other activities involving high-velocity water or submersion below shallow depth.
Emergency SOS
To use Emergency SOS, your iPhone needs to be nearby. If your iPhone isn’t nearby, your Apple Watch needs to be connected to a known Wi-Fi network and you must set up Wi-Fi Calling.
Apple Fitness+
A subscription is required for Apple Fitness+.
App Store
Apps are available on the App Store.
Apple Music
Apple Music requires a subscription.
IRN (irregular rhythm notification)
Irregular rhythm notification requires the latest version of watchOS and iOS. It is not intended for use by people under 22 years old or those who have been previously diagnosed with atrial fibrillation (AF).
Faster charge
Testing conducted by Apple in August 2021 using pre-production Apple Watch Series 7 (GPS) and Apple Watch Series 7 (GPS + Cellular) with Apple Watch Magnetic Fast Charging USB-C Cable (Model A2515) and Apple 20W USB-C Power Adapter (Model A2305), as well as Apple Watch Series 6 (GPS) and Apple Watch Series 6 (GPS + Cellular) with Apple Watch Magnetic Charging Cable (Models A2255 and A2256) and Apple 5W USB Power Adapter (Model A1385); each Apple Watch paired with an iPhone, all devices tested with pre-release software. Charge time varies with region, settings and environmental factors; actual results will vary.
Straps
Straps are subject to availability.
Compatibility
Apple Watch Series 7 requires iPhone 6s or later with iOS 15 or later. Apple Watch SE and Apple Watch Series 3 require iPhone 6s or later with iOS 14 or later.
