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Amazfit T Rex Ultra vs Galaxy S25 Ultra (S25 Ultra)

Feature Comparison

Time and method of release
Time and method of release
Availability Status Available, released to market -
Aesthetic features
Aesthetic features
Size and Dimensions 47.3 x 47.3 x 13.45 mm 162.8 x 77.6 x 8.2 mm
Product Weight 89g (with strap) 218 gram (g)
Color Options - Black, Silver Blue, Titanium Green, Titanium Silver, Gray, Titanium Black, Gold
Body material and design
Body material and design
Compatible SIM Card Types No Nano SIM card + Nano SIM card + eSIM (max 2 at a time) - INT Nano SIM card + eSIM + eSIM (max 2 at a time) - USA Nano SIM card + Nano SIM card - CNeSIM
Other Body Features Stainless steel body / Plastic frame / Water resistant up to 10 ATM (100 meters deep) -
Display
Display
Display Technology -
Screen Size 1.39 inch -
Display Resolution
Display Technical Details 1000 nits peak brightness
Screen Size - 6.9 inch
Display Panel Type -
Pixel Density Range -
Screen-to-Body Ratio - ~92.5 percent (%)
Highest Refresh Rate - 120 hertz (hz)
Screen Aspect Ratio - 19.5:9
Maximum Brightness Level - 2600 nit
Operating system or software platform
Operating system or software platform
OS Version Proprietary Zepp OS 2.0 compatible with Android 7.0 and later and iOS version 12.0 and later -
Storage memory
Storage memory
Internal Memory Capacity 256GB, 512GB, and 1TB
RAM Memory -
Internal Storage Type -
Audio features
Audio features
Alert Type Vibrate -
Speaker Type No -
Speaker Type - Stereo (dual)
Number of 3.5mm Jacks - No
Audio capabilities -
Battery capacity and performance
Battery capacity and performance
Battery Type and Capacity Non-removable 500 mAh battery (fully charged in 2 hours) -
Battery Standby Time Up to 50 days (watch mode only) / Up to 25 days (battery saver mode) / Up to 20 days (normal usage) / Up to 9 days (heavy usage) / Up to 46 hours (GPS on) -
Capabilities
Capabilities
Smart Sensors Optical heart rate sensor with SpO2 (blood oxygen level) calculation capability, Accelerometer, Gyroscope, Geomagnetic sensor, Altimeter, Ambient light sensor
Messaging Method Received notification announcement / Display text messages -
Other Features and Capabilities Supports 162 sport modes, heart rate monitoring, blood oxygen level measurement, sleep monitoring, stress monitoring, pedometer, phone and calendar notification display, date and time display, watch face customization, weather display, music control, interchangeable strap -
Network connections
Network connections
Communication Technologies No cellular connectivity -
Connections
Connections
Wireless Network Type -
Bluetooth Support 5.4
GPS Support Yes -
NFC Support No -
USB Connections Type No, charges with proprietary magnetic charger -
Memory Card Slot - No
Miscellaneous
Miscellaneous
Available Color Options Black, Light Brown -
Initial data or main information
Initial data or main information
Price Range at Time of Release -
Introduction Time -
Availability Status - Released
Official Release Date -
Operating System Type at Release - Android
Operating System at Release - Android 15
Operating System Details and Description - Android 15, One UI 7
Specific absorption rate (SAR) - 1.26 W/kg (for head) and 1.26 W/kg (for body)
European SAR rate (SAR EU) - 1.26 W/kg (for head) and 0.64 W/kg (for body)
Part Numbers -
Processor or chip
Processor or chip
Chipset Model -
Chip Manufacturing Process - 3 nm
Number of Processor Cores - 8 core
Processor Core Details -
Central Processor (CPU)
Central Processor (CPU)
GPU Model - Adreno 830
Main memory and RAM
Main memory and RAM
Internal Memory and RAM Performance - 256GB with 12GB RAM, 512GB with 12GB RAM, and 1TB with 12GB RAM
Visual details
Visual details
Supported HDR Standards -
Battery and charging features
Battery and charging features
Battery Replaceability - Non-user replaceable
Connection Port Type - USB Type-C 3.2
OTG Support - Yes
Maximum Supported Charging Power -
Wireless Charging Support - Yes
Full Charge Time -
Other battery and charging features -
Maximum Wireless Charging Power -
Main camera
Main camera
Rear Camera Details -
Main Camera Type - Wide/Standard - 200 megapixel (mp)
Main Camera Specifications - Wide/Standard -
Ultra-Wide Lens - 50 megapixel (mp)
Telephoto Lens - 50 megapixel (mp)
Ultra-Wide Camera Details -
Filming Details - 8K@24/30fps, 4K@30/60/120fps, 1080p@30/60/120/240fps, 10-bit HDR, Features HDR10+ technology, Stereo sound recording, Gyro-EIS
Other Cameras - Second telephoto camera, 10MP, 67mm, phase-detection autofocus, optical image stabilization, 3x optical zoom, 1/3.52-inch sensor size, 1.12µm pixel size, f/2.4
Communications and sensors
Communications and sensors
Wi-Fi Specifications - Wi-Fi 7 (802.11be) a/b/g/n/ac/ax/be
Wi-Fi Details and Description -
Bluetooth Details and Description -
Communication Technologies - GSM / CDMA / HSPA / EVDO / LTE / 5G
5G Support - Yes
Navigation Type and GPS -
Fingerprint Sensor Type - Under-display (Ultrasonic)
Style and design
Style and design
Back body material - Glass (Gorilla Glass Victus 2)
Front Panel Material - Glass (Corning Gorilla Armor 2)
Frame material type - Metal - Titanium
Technical features
Technical features
Fast Charging Capability - Yes
General specifications
General specifications
Equivalent Name - S25 Ultra, Samsung Galaxy S25 Ultra, Galaxy S25 Ultra
Front camera
Front camera
Main Selfie Camera Quality - 12 megapixel (mp)
Main Selfie Camera Specifications -
Maximum Video Recording Resolution of Selfie Camera - 4K
Resolution and Frame Rate of Selfie Video - 4K@30/60fps, 1080p video recording at 30 fps
Second Selfie Camera Details - HDR, Features HDR10+ technology
Power supply and battery life
Power supply and battery life
Battery Capacity - 5000mAh
Battery Technology - Lithium-Ion
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User Rating Comparison

Amazfit T Rex Ultra
0 /10
from total 1 Vote
Galaxy S25 Ultra (S25 Ultra)
0 /10
from total 1 Vote

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