Compare devices

Samsung Exynos W920

S8

Dual-core, 2 at 1.18GHz

64-bit dual-core processor

Up to 16GB

32GB

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.

9

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®

v5.0

Yes

eSim

Electronic SIM

Yes

Track a casual walk, an intense ride, and everything in between.

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

Ambient light, accelerometer, barometric altimeter, built-in GPS, gyroscope, third-generation optical heart rate

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