Required to use smartwatch over cellular; rate plan required
Sensors
Accelerometer
Sensors
Electrical heart sensor and ECG app
Third-generation optical heart sensor
High and low heart rate notifications
Irregular rhythm notifications
Sleep stages
Temperature sensing
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
Temperature sensor
Yes
Real Time Text (RTT) capable
Yes
Device Eco-rating
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)
Substances of concern
3/4
Environmentally preferable materials
0/3
Energy efficiency and charging
1/1
End of life and recycling
1/2
Environmentally and socially responsible manufacturing
8/10
Total Eco-score
13/20 (3-star) Please visit att.com/ecospace for additional information.
Workout
Improved Workout app with new metrics, new views, and advanced ways to train.
Advanced safety features
Siren, Backtrack, Fall Detection,8 Emergency SOS,9 and Crash Detection.
Activity
Track your daily activity on Apple Watch, and see your trends in the Fitness app on iPhone.
ECG
Generates an ECG similar to a single-lead electrocardiogram.
Heart Rate
Keep tabs on your resting, walking, and workout recovery heart rate.
Text messaging
Yes
Music player
Apple Music®
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