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64GB

32GB

2GB

9

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, 7, 12, 13, 17, 18, 19, 25, 26, 39, 40, 41, 66

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

850/1700/1900/2100MHz

Required to use smartwatch over cellular; rate plan required

Yes

802.11b/g/n

Wi-Fi 5 (802.11ac)

2.4GHz and 5GHz

2.4GHz & 5GHz

5.3

v6.0 + EDR, A2DP, HS, LE

Electronic SIM

Electronic SIM

Yes

Open, Secure

Yes

Yes

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

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

Electrical heart sensor and ECG app

Third-generation optical heart sensor

High and low heart rate notifications

Sleep stages

Compass

Always-on altimeter

High-g accelerometer

Up to 256 g-forces with Fall Detection and Crash Detection

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