Samsung Galaxy Watch9 44mm vs Apple Watch Ultra 4 49mm

Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 38, 39, 40, 41, 66, 71

Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 38, 39, 40, 41, 53, 66, 71

850, 900, 1700, 1900, 2100

Yes

Yes

Yes

Required to use smartwatch over cellular; rate plan required

Wi-Fi 4 (802.11n)

Wi‑Fi 4 (802.11n)

2.4GHz & 5GHz

Open, Secure

v6.0 + EDR, A2DP, HS, LE, aptX®

v5.3

Yes

eSIM

Electronic SIM

Yes

Bands n1, n2, n3, n5, n7, n8, n12, n14, n20, n25, n26, n28, n38, n40, n41, n53, n66, n71

Accelerometer, Ambient Light, Barometer, Bioelectrical Impedance Analysis, Electrical Heart, Geomagnetic, Gyroscope,Optical Heart Rate, Temperature

Health Sensing System: third-generation electrical heart sensor, always-on optical heart sensor, blood oxygen sensor, and temperature sensor

Depth gauge

Water temperature sensor

Compass

Always-on altimeter

High-g accelerometer

High dynamic range gyroscope

Ambient light sensor

Yes

Insert pictures, video clips and sound clips easily (messaging charges apply)

Rich Communication Services (RCS) messaging compatible for larger file transfers and group messages with other RCS clients. See when messages are delivered, read and when others are typing a response.

email

Yes

Samsung Music Player

Apple Music®

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

This device is not hearing aid compatible.

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).

4/4

3/3

1/1

2/2

10/10

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

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

Satellite communications (Emergency SOS, Messages, Find My)

Emergency SOS

International emergency calling

Siren

Flashlight

Fall Detection

Crash Detection

Last Emergency Call Availability Waypoint

Noise monitoring

Backtrack

Generates an ECG similar to a single-lead electrocardiogram.

The most accurate heart rate sensing in a wearable, Series 12 now measures HRV as often as every five minutes for insights on stress and recovery, and takes background heart rate readings every five seconds.