Compare devices

Samsung Exynos W920

S9 SiP with 64-bit dual-core processor

Dual-core, 2 at 1.18GHz

4-core Apple Neural Engine

Up to 16GB

64GB

1.5GB

Wear OS Powered by Samsung 3.5

Yes

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

10

Subject to change based on future operating system updates

Bands 2, 4, 5, and 12

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

HSPA+ with enhanced backhaul

850/1900MHz

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

v5.2 + EDR, A2DP, HS, LE, aptX®

5.3

Yes

eSim

Electronic SIM

Yes

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.

Accelerometer, Ambient Light, Barometer, 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

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

Yes

Microsoft Outlook

Yes

Samsung Music

Apple 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