Apple Watch (42mm) vs Xiaomi Amazfit T-Rex Pro
Side by side comparison between Apple Watch vs Xiaomi Amazfit T-Rex Pro smartwatches, differences, pros, cons and full specifications. What's the better?
,
1.54"
AMOLED
AMOLED
312x390
N/A
512MB
RAM
RAM
Single-core
205
mAh
mAh
(Non removable)
vs
1.3"
AMOLED
AMOLED
360x360
N/A
512MB
RAM
RAM
Single-core
390
mAh
mAh
(Non removable)
What's the better smartwatch? Xiaomi Amazfit T-Rex Pro
The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!
8 Advantages 
11 Advantages | 12 Common items in both devices |
| AMOLED |
| 16 million |
| Capacitive |
| Multitouch |
| Accelerometer |
| Ambient light sensor |
| Heart rate |
| +5 specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight📱 Model features | ||
| Apple Watch (42mm) | Amazfit T-Rex Pro | |
| Model | Watch (42mm) | Amazfit T-Rex Pro |
| Other model names | Apple Watch 1st gen (2015) A1554 Stainless Steel | Mi Amazfit TRex Pro |
| Country or region available |  (Global, International) | (Global, International) |
| Brand | Apple | Xiaomi |
| Release date | 4/24/2015 | 3/23/2021, Announced: 3/5/2021 |
| Depth | 10.5 millimeters (0.41 inches) | 13.5 millimeters (0.53 inches) |
| Size (width x height) | 35.9 x 42 millimeters (1.41 x 1.65 in) | 47.47 x 47.47 millimeters (1.87 x 1.87 in) |
| Weight | 101 grams (3.54 ounces) | 59 grams (2.07 ounces) |
| Build, materials | Stainless steel body, glass front, ceramic back | Plastic body, glass front |
| Protection against water and others | IPX7 certified: water resistant up to 1 meter and 30min | 10 ATM: 100 meters waterproof |
📲 Display | ||
| Apple Watch (42mm) | Amazfit T-Rex Pro | |
| Display type | AMOLED | AMOLED |
| Screen size | 1.54" inches | 1.3" inches |
| Screen-to-body ratio | ~49.5% (screen-to-body ratio) | ~24.2% (screen-to-body ratio) |
| Display resolution | 312x390 pixels | 360x360 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 324 PPI | 392 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Sapphire Glass | Gorilla Glass 3 |
| Refresh rate | feature not registered | 60Hz |
| Display features | feature not registered | Not supported |
🤖 Operating System | ||
| Apple Watch (42mm) | Amazfit T-Rex Pro | |
| System version | WatchOS 1.0 | Proprietary OS |
| Firmware update | WatchOS 4.0 | feature not registered |
| User Interface | feature not registered | RTOS |
⚙️ Processor | ||
| Apple Watch (42mm) | Amazfit T-Rex Pro | |
| Chipset | 32bit: Apple S1 (28nm) | 32bit |
| CPU | Single-core, 1 processor: 1x 520MHz ARM Cortex-A7 (Single-core) | Single-core, 1 processor: Single-core |
| GPU graphical controller | PowerVR SGX543 | feature not registered |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Apple Watch (42mm) | Amazfit T-Rex Pro | |
| RAM memory | 512MB LPDDR | 512MB LPDDR3 |
| Internal storage | 8GB (6GB available) | 4GB (2GB available) eMCP |
| External storage | Not supported | Not supported |
📶 Mobile networks | ||
| Apple Watch (42mm) | Amazfit T-Rex Pro | |
| Dual-SIM | Not supported | Not supported |
| SIM card | Not supported | Not supported |
| Maximum Download / Upload | feature not registered | feature not registered |
| Network technology | feature not registered | feature not registered |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Not supported | Not supported |
| Primary 2G network | Not supported | Not supported |
| Primary 3G network | Not supported | Not supported |
| Primary 4G network | Not supported | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | Not supported | Not supported |
| Secondary 2G network | Not supported | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | Not supported |
📷 Camera | ||
| Apple Watch (42mm) | Amazfit T-Rex Pro | |
| Back camera (main camera) | Not supported | Not supported |
| Main camera resolution | Not supported | Not supported |
| Video recording (primary) | Not supported | Not supported |
| Flash | Not supported | Not supported |
| Focal aperture | feature not registered | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
| Autofocus | Not supported | Not supported |
| Touch focus | Not supported | Not supported |
| Image stabilization | Not supported | Not supported |
| Zoom | Not supported | Not supported |
| Face/smile detection | Not supported | Not supported |
| BSI sensor | Not supported | Not supported |
| HDR | Not supported | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Apple Watch (42mm) | Amazfit T-Rex Pro | |
| Front camera (secondary) | Not supported | Not supported |
| Front camera resolution | Not supported | Not supported |
| Video recording (secondary) | Not supported | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
🔉 Sound and multimedia | ||
| Apple Watch (42mm) | Amazfit T-Rex Pro | |
| Loudspeaker | Supported | feature not registered |
| Active noise cancellation | Not supported | Not supported |
| Radio | Not supported | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | feature not registered |
| Audio formats | MP3, WAV, eAAC+, FLAC | feature not registered |
🔌 Connectivity | ||
| Apple Watch (42mm) | Amazfit T-Rex Pro | |
| USB | Not supported | Not supported |
| Audio output | Not supported | Not supported |
| TV output | Not supported | Not supported |
| Bluetooth | 4.0 + A2DP | 5.0 + A2DP/LE |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | Not supported |
| DLNA | Not supported | Not supported |
| GPS | Not supported | A-GPS, GeoTagging, GLONASS, BeiDou |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Apple Watch (42mm) | Amazfit T-Rex Pro | |
| Sensors | Accelerometer Ambient light sensor Gyroscope Heart rate Pedometer | Accelerometer Ambient light sensor Barometer Compass Heart rate Pedometer SpO2 |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Apple Watch (42mm) | Amazfit T-Rex Pro | |
| Battery type | Li-Ion: lithium-ion (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 205 mAh | 390 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | Magnetic charging (dock) | Magnetic charging (dock) |
| Talk time autonomy | 3 hours | 432 hours (18 days) |
| Standby | 18 hours | 432 hours (18 days) |
➕ Other features | ||
| Apple Watch (42mm) | Amazfit T-Rex Pro | |
| Call control | Not supported | Not supported |
| Messaging | SMS, E-mail | SMS (T9), E-mail |
| Hands-free calling | Supported | Not supported |
| Video calling | Not supported | Not supported |
| Ringtones | feature not registered | feature not registered |
| Web browser | Not supported | Not supported |
| Antenna | Not supported | feature not registered |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Watch colors: Silver, Space gray • Watch bands: White, Black, Blue, Pink, Brown, Gray, Steel • Band material: Leather, Stainless steel, Fluoroelastomer plastic • iOS 8.2 or higher compatible • Digital Crown • MagSafe charging | • Colors: Black, Gray, Blue • Watch band: 22mm • BioTracker PPG • 100 sports mode • AppZepp app • Compatible with Android 5.0/iOS 10 and above |
☢️ Radiation rate | ||
| Apple Watch (42mm) | Amazfit T-Rex Pro | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |