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64GB

32GB

2GB

26

Subject to change based on future operating system updates

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

Yes

6.0

Subject to change based on future operating system updates.

Bands 1, 2, 3, 4, 5, 6, 7, 12, 13, 14, 17, 18, 19, 25, 26, 39, 40, 41, 66

Bands 2, 4, 5, 12, 13, 17, 25, 26, 66, 71

850, 1700/2100, 1900, 2100MHz

Required to use smartwatch over cellular; rate plan required

Yes

Wi-Fi 4 (802.11n)

Wi-Fi 5 (802.11ac)

v5.3

v6.0 + EDR, A2DP, HS, LE

Electronic SIM

Electronic SIM

Yes

2.4GHz & 5GHz

Open, Secure

Yes

Yes

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

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

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

Generates an ECG similar to a single-lead electrocardiogram.

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

Electrical heart sensor

Third-generation optical heart sensor

Blood oxygen sensor

Temperature sensor

Depth gauge

Water temperature sensor

Compass

Always-on altimeter

High-g accelerometer

High dynamic range gyroscope

Ambient light sensor

Accelerometer, Ambient Light, Barometer, Gyroscope, Heat Flux, ECG, Compass, Blood oxygen sensor, Multi-path HR Optics, cEDA, UWB

Yes

Yes

Insert pictures, video clips and sound clips easily (messaging charges apply)

Apple Music®

Google YouTube Music

LFLAC, M4A, MP3, OGG, WMA

Via lockscreen

Yes

The AT&T Eco-Rating 2.0 system gives you environmental and social details about this device. The system uses a total of 20 performance criteria across 5 different attributes, for a total rating of 1 to 5 stars: 19-20 (5-star), 16-18 (4-star), 13-15 (3-star), 10-12 (2-star), 8-9 (1-star)

3/4

2/3

1/1

2/2

7/10

15/20 (5-star) Please visit www.att.com/ecospace for additional information