In depth comparison and review of Amazfit T-Rex 2 and Huawei Watch 4. Compare sizes, functions, displays, batteries and other important specifications and features to easily choose the right smartwatch for you. Our goal is to help you uncover differences between the products and find the watch that will best fit your needs.
| GENERAL | Amazfit T-Rex 2 | Huawei Watch 4 |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Operating System | Zepp OS | - |
| Supported Host Device OS | iOS 12 or later, Android 7.0 (Nougat) or later | Android 6.0 (Marshmallow) or later, iOS 13.0 or later |
| Activity/Sport | Multisport | Multisport |
| Wearing Style | Watch style | Watch style |
| Audio Input | - | Microphone |
| Audio Output | - | Speaker |
| Width | 47.1 mm | - |
| Height | 47.1 mm | - |
| Depth | 13.65 mm | - |
| Weight | 66.5 g | - |
| Body Details | - | Case only: 48 g |
| Body Material | Polymer | 316L grade stainless steel |
| Protection | Shockproof, water-resistant, salt fog protection, freezeproof, heat-resistant | Water-resistant, dust-resistant |
| Colours | - | Black |
| Clock Display | Yes | Yes |
| FEATURES | Amazfit T-Rex 2 | Huawei Watch 4 |
|---|
| Sensors | Accelerometer, ambient light sensor, digital compass, gyro sensor, geomagnetic sensor, barometric altimeter, BioTracker PPG 3.0 biometric sensor | Accelerometer, ambient light sensor, digital compass, barometer, depth sensor, optical heart sensor, ECG sensor, gyroscope, temperature sensor |
|---|---|---|
| Tracking Data | Distance, calories burned, sleep activity, heart rate, blood oxygen saturation, sleep stages, stress level, menstrual cycle | Distance, calories burned, activity, sleep activity, heart rate, steps taken, skin temperature, blood oxygen saturation, location, stress level, respiratory rate, breath, altitude, ECG, nap |
| Modes | 150+ sports modes | 100+ Workout modes |
| Goal Setting | Yes | Yes |
| Features | Camera remote control, find phone function, flashlight, alarm, realtime location tracking, weather information, event reminders, PAI Health Assessment System, pomodoro timer, stopwatch timer, PeakBeats workout status algorithm, OxygenBeats algorithm, ExerSense algorithm, SomnusCare, Dual-band navigation | Call handling, camera remote control, find phone function, Fall detection, Emergency SOS, music playback control, Route Back, customisable watch faces, arterial stiffness detection, sedentary lifestyle reminder, HUAWEI TruSleep, HUAWEI Assistant TODAY |
| Notifications | Missed calls, calendar, incoming calls, applications | SMS, social apps, incoming calls, high and low heart rate |
| Vibrating Alert | Yes | Yes |
| Feedback Type | Vibration alert, visual interface | Audio alert, vibration alert, visual interface |
| Navigation (GPS) | GPS receiver | GPS receiver |
| CELLULAR | Amazfit T-Rex 2 | Huawei Watch 4 |
|---|
| Mobile Broadband Generation | - | 4G |
|---|---|---|
| SIM Card Type | - | Electronic SIM card (e-SIM) |
| Messaging Services | - | SMS |
| CONNECTIVITY | Amazfit T-Rex 2 | Huawei Watch 4 |
|---|
| Wireless Interface | Bluetooth 5.0 BLE | Wi-Fi, LTE, NFC, Bluetooth 5.2 BLE/BR |
|---|
| DISPLAY | Amazfit T-Rex 2 | Huawei Watch 4 |
|---|
| Type | AMOLED - colour | LTPO AMOLED - colour |
|---|---|---|
| Resolution | 454 x 454 pixels | 466 x 466 pixels |
| Screen Size | 1.39" | 1.5" |
| Pixel Density | 326 ppi | 310 ppi |
| Always On Display (AOD) | Yes | Yes |
| INPUT DEVICE | Amazfit T-Rex 2 | Huawei Watch 4 |
|---|
| Type | Touch sensitive screen, touch buttons | Touch sensitive screen, side button, rotating crown |
|---|
| CASE | Amazfit T-Rex 2 | Huawei Watch 4 |
|---|
| Crystal Type | - | 3D curved glass |
|---|---|---|
| Case Shape | Round | Round |
| Case Details | Ember black | Wild green | Desert khaki | Astro black and gold | Stainless steel |
| BAND | Amazfit T-Rex 2 | Huawei Watch 4 |
|---|
| Band Type | Strap | Strap |
|---|---|---|
| Fits Wrist with Circumference | 140-205 mm | 140-210 mm |
| Changeable | - | Yes |
| Clasp Type | Buckle | Buckle |
| Band Material | Silicone | Fluoroelastomer |
| Band Colour | Ember black | Wild green | Desert khaki | Black |
| STORAGE | Amazfit T-Rex 2 | Huawei Watch 4 |
|---|
| Storage Capacity | - | 32 GB |
|---|
| RAM | Amazfit T-Rex 2 | Huawei Watch 4 |
|---|
| RAM Size | - | 2 GB |
|---|
| BATTERY | Amazfit T-Rex 2 | Huawei Watch 4 |
|---|
| Capacity | 500 mAh | - |
|---|---|---|
| Battery Life | 24 day(s) | 14 day(s) |
| Battery Life Details | Typical usage - up to 24 days Battery safe mode - up to 45 days Heavy usage - up to 10 days Accurate mode (with GPS) - up to 26 hour(s) Balanced mode (with GPS) - up to 50 hour(s) Power saving mode (with GPS) - up to 58 hour(s) Ultra-low temperature (with GPS) - up to 10 hour(s) Ultra-low temperature (without GPS) - up to 9 days |
Ultra-long battery life mode - up to 14 days Ultra-long battery life mode (typical usage) - up to 8 days Typical usage - up to 3 days |
| Rechargeable Battery | Yes | Yes |
| Recharge Time | 2 hour(s) | 60 min |
| Wireless Charging | - | Yes |
| MISCELLANEOUS | Amazfit T-Rex 2 | Huawei Watch 4 |
|---|
| Included Accessories | Magnetic charging dock | Charging cradle, charging cable |
|---|---|---|
| Preloaded Software | Zepp App | VoLTE |
| Compliant Standards | MIL-STD 810G | IP6X, ISO 22810, EN13319 |
| Specific Absorption Rate (SAR) | - | 0.3 W/kg (head) 0.71 W/kg (body) 1.08 W/kg (limb) |
| Max Depth of Water Resistance | 100 m | 50 m |
| Max Operating Temperature | - | 35 °C |
| Min Operating Temperature | - | 0 °C |
| Warranty | 1-year warranty | - |
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