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Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 26, 28, 40, 66, 71

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

850/900/1700/2100/1900/2100MHz

850/1700/1900/2100MHz

Yes

Yes

Required to use smartwatch over cellular; rate plan required

802.11a/b/g/n

802.11b/g/n

2.4GHz & 5.0GHz

2.4GHz and 5GHz

Open, Secure

v5.3 + EDR, A2Dp, HS, LE, aptX®

5.3

Yes

eSim

Electronic SIM

Accelerometer, Ambient light, Bioelectrical Impedance Analysis, ECG, Geomagnetic, Gyroscope, Heart rate, Infrared Temperature

Depth gauge ±1m accuracy

Water temperature sensor

Compass

Always-on altimeter

High-g accelerometer

High dynamic range gyroscope

Ambient light sensor

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

Yes

Microsoft Outlook

Samsung Music

Apple Music®

MP3, M4A, 3GA, AAC, OGG, OGA, WAV, AMR, AWB

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)

4/4

2/3

1/1

2/2

10/10

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

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

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