Sonim XP3plus 5G (No Camera) vs Apple Watch Ultra 4 49mm

32GB

64GB

Up to 1TB

microSD™

4GB

Based on AOSP 14

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

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

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, 20, 25, 26, 28, 38, 41, 48, 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

850/900/1700/1900/2100MHz

Yes

Wi-Fi 5 (802.11ac)

Wi‑Fi 4 (802.11n)

2.4GHz & 5GHz

v5.0 + EDR, A2DP, HS, LE, aptX®

v5.3

Up to 10 devices

Yes

Yes

Dual mic, Goodix VoiceExperience

Nano

Electronic SIM

Yes

Required to use smartwatch over cellular; rate plan required

Accelerometer, Barometer

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)

Yes

Music Player

Apple Music®

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

Via lockscreen, headset

Yes

This device is hearing aid compatible. Conversational gain with hearing aid: 7.83 db Conversational gain without hearing aid: 14.63 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

1/3

1/1

2/2

9/10

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.