Compare devices

64GB

Up to 16GB

1.5GB

Wear OS Powered by Samsung 3.5

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

Yes

11

Subject to change based on future operating system updates

Required to use smartwatch over cellular; rate plan required

Yes

Wi-Fi 4 (802.11n)

802.11a/b/g/n

2.4GHz and 5GHz

2.4GHz & 5.0GHz

Open, Secure

5.3

v5.2 + EDR, A2DP, HS, LE, aptX®

Yes

Electronic SIM

eSim

HSPA+ with enhanced backhaul

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

Bands 2, 4, 5, and 12

850/1700/1900/2100MHz

850/1900MHz

Yes

Track your daily activity on Apple Watch, and see your trends in the Fitness app on iPhone.

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

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

Electrical heart sensor

Third-generation optical heart sensor

Compass

Always-on altimeter

High-g accelerometer

High dynamic range gyroscope

Ambient light sensor

Depth gauge

Water temperature sensor

Accelerometer, Ambient Light, Barometer, ECG, Geomagnetic, Gyroscope, Heart rate, Infrared temperature

Yes

Send and receive text messages from your wrist (messaging charges apply).

Microsoft Outlook

Yes

Apple Music®

Samsung Music

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

Yes

Send and receive text messages from your wrist (messaging charges apply).

4/4

2/3

1/1

2/2

10/10

19/20 (5-star) Please visit www.att.com/ecospace for additional information