Amazfit T Rex Ultra
VS
Alcatel 3 (2025)
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 | 164.4 x 75.8 x 8.8 mm (6.47 x 2.98 x 0.35 in) |
|---|---|---|
| Product Weight | 89g (with strap) | 185 g |
| Color Options | - | Space Gray, Teal Blue |
| Dimensions | - | 164.4 x 75.8 x 8.8 mm (6.47 x 2.98 x 0.35 in) |
Body material and design
Body material and design
| Compatible SIM Card Types | No | - |
|---|---|---|
| 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 | 6.52 inches, 102.6 cm 2 (~82.4% screen-to-body ratio) |
| Display Resolution | 576 x 1280 pixels, 20:9 ratio (~215 ppi density) | |
| Display Technical Details | 1000 nits peak brightness | - |
| Display Panel Type | - | IPS LCD, 400 nits |
| Brightness | - | IPS LCD, 400 nits |
| Screen Size | - | 6.52 inches, 102.6 cm 2 (~82.4% screen-to-body ratio) |
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 | 64GB 3GB RAM, 128GB 4GB RAM | |
|---|---|---|
| Internal Storage Type | - | eMMC 5.1 |
Audio features
Audio features
| Alert Type | Vibrate | - |
|---|---|---|
| Speaker Type | No | Yes |
| Number of 3.5mm Jacks | - | Yes |
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 | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
|---|---|---|
| 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 | 4.2, A2DP | |
| GPS Support | Yes | - |
| NFC Support | No | - |
| USB Connections Type | No, charges with proprietary magnetic charger | - |
Miscellaneous
Miscellaneous
| Available Color Options | Black, Light Brown | - |
|---|
Style and design
Style and design
| Front Panel Material | - | Glass front, plastic back, plastic frame |
|---|
Processor or chip
Processor or chip
| Chipset Model | - | Unisoc SC9863A1 (22 nm) |
|---|---|---|
| Processor Core Details | - | Octa-core (4x1.6 GHz Cortex-A55 & 4x1.2 GHz Cortex-A55) |
Main camera
Main camera
| Main Camera Type - Wide/Standard | - | 8 MP, f/1.8, (wide), 1/4.0", 1.12µm, AF |
|---|---|---|
| Main Camera Specifications - Wide/Standard | - | LED flash |
| Maximum Video Recording Quality of Rear Camera | - | 1080p@30fps |
| Rear Camera Details | - | 8 MP, f/1.8, (wide), 1/4.0", 1.12µm, AF |
Front camera
Front camera
| Main Selfie Camera Specifications | - | 5 MP, f/2.2, (wide), 1/5.0", 1.12µm |
|---|---|---|
| Resolution and Frame Rate of Selfie Video | - | Yes |
| Main Selfie Camera Quality | - | 5 MP, f/2.2, (wide), 1/5.0", 1.12µm |
Communications and sensors
Communications and sensors
| Wi-Fi Specifications | - | Wi-Fi 802.11 b/g/n, Wi-Fi Direct |
|---|---|---|
| Navigation Type and GPS | - | GPS, GLONASS, GALILEO, BDS |
| Communication Technologies | - | GSM / HSPA / LTE |
Battery and charging features
Battery and charging features
| Connection Port Type | - | USB Type-C 2.0, OTG |
|---|
Power supply and battery life
Power supply and battery life
| Battery Capacity | - | 5010 mAh |
|---|
Launch Information
Launch Information
| Announced | - | 2025, May 21 |
|---|
Initial data or main information
Initial data or main information
| Availability Status | - | Available. Released 2025, June |
|---|---|---|
| Part Numbers | - | T451H |
Body
Body
| Build | - | Glass front, plastic back, plastic frame |
|---|
Design
Design
| SIM | - | Nano-SIM + Nano-SIM |
|---|
Platform
Platform
| Operating System | - | Android 15 (Go edition) |
|---|---|---|
| Chipset | - | Unisoc SC9863A1 (22 nm) |
Central Processor (CPU)
Central Processor (CPU)
| CPU | - | Octa-core (4x1.6 GHz Cortex-A55 & 4x1.2 GHz Cortex-A55) |
|---|---|---|
| GPU Model | - | IMG8322 |
Main memory and RAM
Main memory and RAM
| Memory Card Slot Type | - | microSDXC |
|---|
Technical features
Technical features
| Fast Charging Capability | - | 10W wired |
|---|
Disclaimer: Information on this page may need review. If you notice any discrepancies, please report them
User Rating Comparison
Amazfit T Rex Ultra
0
/10
from total 1 Vote
Alcatel 3 (2025)
0
/10
from total 1 Vote
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