Samsung Galaxy S25 Ultra vs Apple Watch Series 12 42mm

Qualcomm® Snapdragon® 8 Elite for Galaxy

S11 chip with 64-bit dual-core processor

Octa-core, 2 @4.47GHz and 6 @3.5GHz

S11 chip with 64-bit dual-core processor

4-core Neural Engine

256GB | 512GB

64GB

12GB

15

Subject to change based on future operating system updates

Yes

The next generation of Apple Intelligence is centered around you, integrated into your apps, and built with privacy.

Apple Intelligence powers Siri AI — an entirely new version of Siri that’s more personal, conversational, and powerful, along with helpful features across apps.

27

Subject to change based on future operating system updates

n77 C-Band, n77 3.45GHz, n260

Bands n1, n2, n3, n5, n7, n8, n20, n28, n30, n38, n41, n66, n77, n78, n257, n260

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

Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 48, 66

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

850/900/1700/2100/1900/2100MHz

850/900/1800/1900MHz

Quad-band

Yes

Yes

Yes

Wi-Fi 7 (802.11be)

Wi‑Fi 4 (802.11n)

2.4GHz & 5GHz & 6GHz

Open, Secure

v5.4 + EDR, A2DP, HS, LE, aptX®

v5.3

Up to 10 devices

Google Solution

eSIM-First

Electronic SIM

Yes

Required to use smartwatch over cellular; rate plan required

Accelerometer, Ambient Light, Barometer, Fingerprint, Geomagnetic, Gyroscope, Proximity, Hall

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

Compass

Always-on altimeter

High-g accelerometer

High dynamic range gyroscope

Ambient light sensor

Depth gauge to 6 meters

Water temperature sensor

Yes

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

With Google Messages, Rich Communication Services (RCS) messaging offers larger file transfers and group messages with other RCS-capable devices. See when messages are delivered, read and when others are typing a response.

POP3, IMAP4, SSL, TLS, Microsoft® Exchange ActiveSync®

Yes

Yes

Music

Apple Music®

MP3, M4A, 3GA, AAC, OGG, OGA, WAV, AMR, AWB, FLAC, MID, MIDI, XMF, MXMF, IMY, RTTTL, RTX, OTA, DFF, DSF, APE

Via lockscreen

Yes

This device is hearing aid compatible.

Conversational gain with hearing aid: 13 db

Conversational gain without hearing aid: 16 db

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

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

Emergency SOS

International emergency calling

Fall Detection

Crash Detection

Last Emergency Call Availability Waypoint

Flashlight

Backtrack

Noise monitoring

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.