Apple Watch Ultra 4 49mm vs Samsung Galaxy Watch Ultra (2025)

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

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

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

Required to use smartwatch over cellular; rate plan required

Yes

Wi‑Fi 4 (802.11n)

Wi-Fi 4 (802.11n)

v5.3

v5.3 + EDR, A2DP, HS, LE, aptX®

Electronic SIM

eSim

850/900/1700/1900/2100MHz

Yes

2.4GHz & 5GHz

Open, Secure

Yes

Yes

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.

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

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

Yes

Yes

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

Microsoft Outook

Apple Music®

Music

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

Yes

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

2/3

1/1

2/2

10/10