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64GB

32GB

Ask Siri to set a reminder, send an invitation, or give you directions, all without your phone.

Ask Siri to set a reminder, send an invitation, or give you directions, all without your phone.

10
Subject to change based on future operating system updates

9
Subject to change based on future operating system updates

Required to use smartwatch over cellular; rate plan required

Required to use smartwatch over cellular; rate plan required

802.11b/g/n

802.11b/g/n

2.4GHz and 5GHz

2.4GHz and 5GHz

5.3

v5.0

Electronic SIM

Electronic SIM

Bands 1, 2, 3, 4, 5, 7, 12, 13, 17, 18, 19, 25, 26, 39, 40, 41, 66

Bands 1, 2, 3, 4, 5, 7, 12, 13, 17, 18, 19, 25, 26, 39, 40, 41, 66

850/1700/1900/2100MHz

850/1700/1900/2100MHz

Generates an ECG similar to a single-lead electrocardiogram.

Set workout-specific goals, see full summaries when you're done, and track how you're trending over time.

Set workout-specific goals, see full summaries when you're done, and track how you're trending over time.

Siren, Backtrack, Fall Detection,⁶Emergency SOS,⁷ and Crash Detection.

Keep tabs on your resting, walking, and workout recovery heart rate.

Keep tabs on your resting, walking, and workout recovery heart rate.

Improved Workout app with new metrics, new views, and advanced ways to train.

Track a casual walk, an intense ride, and everything in between.

Ambient light, accelerometer, barometric altimeter, built-in GPS, gyroscope, third-generation optical heart rate, electrical heart rate (ECG app),⁸  temperature sensor⁹

Ambient light, accelerometer, barometric altimeter, built-in GPS, gyroscope, third-generation optical heart rate

Yes

Yes

Yes

Apple Music®

Apple Music®