Apple Watch Ultra 4 49mm vs Sonim XP5plus 5G (Knobs)

64GB

64GB

Up to 512GB

microSD™

4GB

27

Subject to change based on future operating system updates

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.

15

Proprietary OS based on AOSP 15, no Android OS update.

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

Bands n2, n5, n7, n14, n25, n28, n38, n41, n48, n66, n71, n77, n78

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 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 20, 25, 26, 28, 29, 30, 38, 41, 42, 48, 66, 71

Required to use smartwatch over cellular; rate plan required

Wi‑Fi 4 (802.11n)

Wi-Fi 5 (802.11ac)

v5.3

v5.0 + EDR, A2DP, HS, LE, aptX®

Electronic SIM

Dual SIM with Physical SIM first

n77 C-Band, n77 3.45GHz

850/900/1700/1900/2100

UMTS/LTE/5G NR roaming bands supported

Yes

2.4GHz & 5GHz

Up to 10 devices

Yes

Yes

Fluence AI solution

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, Barometer

Yes

Yes

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

email

Apple Music®

Music player

AAC, MP3, AMR-NB, AMR-WB, FLAC, Vorbis

Via lockscreen, headset

8 MP with FF

1080p @30fps

1920x1080 at 120Hz, H.264(AVC), H265(HEVC), VP8 and VP9 playback.

Flash, White Balance, Resolution, Video Duration, Video Quality, Record Audio, Anti Banding, Shutter Sound

Yes

This device is hearing aid compatible.

Conversational gain with hearing aid: 7.30 db

Conversational gain without hearing aid: -5.54 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).

3/4

1/3

1/1

2/2

9/10

16/20 (4-star) Please visit att.com/ecospace for additional information.