Samsung Galaxy Watch9 40mm vs Samsung Galaxy Watch Ultra (2025)

32GB

32GB | 64GB

2GB

2GB

7.0

Subject to change based on future operating system updates.

Powered by Samsung 5.0

Subject to change based on future operating system updates

Yes

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

Bands 2, 4, 5, 12, 13, 14, 25, 26, 66, 71

850, 900, 1700, 1900, 2100

850/900/1700/1900/2100MHz

Yes

Yes

Yes

Yes

Yes

Wi-Fi 4 (802.11n)

Wi-Fi 4 (802.11n)

2.4GHz & 5GHz

2.4GHz & 5GHz

Open, Secure

Open, Secure

v6.0 + EDR, A2DP, HS, LE, aptX®

v5.3 + EDR, A2DP, HS, LE, aptX®

Yes

eSim

eSim

Yes

Yes

Yes

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

Accelerometer, Ambient light, Barometer, Gyroscope, Heart rate, Temperature

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

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

Microsoft Outook

Samsung Music Player

Music

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

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

This device is not hearing aid compatible.

This device is not hearing aid compatible.

Yes

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).

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

4/4

3/3

2/3

1/1

1/1

2/2

2/2

10/10

10/10

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