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Bands 2, 4, 5, 12, 66

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

Yes

802.11b/g/n

Wi-Fi 4 (802.11n)

2.4GHz and 5GHz

v4.2 + A2DP, LE

5.3

eSim

Electronic SIM

850/1700/1900/2100MHz

Required to use smartwatch over cellular; rate plan required

Yes

Accelerometer

Depth gauge ±1m accuracy

Water temperature sensor

Compass

Always-on altimeter

High-g accelerometer

High dynamic range gyroscope

Ambient light sensor

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

0/3

1/1

1/2

8/10

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.

Yes

Apple Music®