Electrical and optical heart sensors
S5 SiP with up to 2x faster 64-bit dual-core processor²
watchOS 6 with Activity trends, cycle tracking, hearing health innovations, and the App Store on your wrist
Some bands are sold separately. Apple Watch Series 5 requires an iPhone 6s or later with iOS 13 or later.
¹The ECG app is available with the latest versions of iOS and watchOS on Apple Watch Series 4 or later. See apple.com/watch for compatibility details. The ECG app is not intended for use by people under 22 years old.
²Compared with Apple Watch Series 3
³ISO standard 22810:2010. Appropriate for shallow-water activities like swimming. Submersion below shallow depth and high-velocity water activities not recommended.
⁴To 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.