📱 Model features |
| Xiaomi Amazfit T-Rex | Samsung Galaxy Watch Active 2 (Aluminum 40mm SM-R830) |
Model | Amazfit T-Rex | Galaxy Watch Active 2 (Aluminum 40mm SM-R830) |
Other model names | Mi Amazfit TRex | Galaxy Watch Active2 SM-R830 (Bluetooth+WiFi Aluminium) |
Country or region available |  (Global, International) |  (Global, International) |
Brand | Xiaomi | Samsung |
Release date | 1/9/2020, Announced: 1/1/2020 | 9/1/2019 |
Depth | 13.5 millimeters (0.53 inches) | 10.9 millimeters (0.43 inches) |
Size (width x height) | 47.47 x 47.47 millimeters (1.87 x 1.87 in) | 40 x 40 millimeters (1.57 x 1.57 in) |
Weight | 58 grams (2.03 ounces) | 26 grams (.91 ounces) |
Build, materials | Plastic body, glass front | Aluminum body, glass front |
Protection against water and others | 5 ATM: 50 meters waterproof | 5 ATM: 50 meters waterproof. MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant. |
🤖 Operating System |
| Xiaomi Amazfit T-Rex | Samsung Galaxy Watch Active 2 (Aluminum 40mm SM-R830) |
System version | Proprietary OS | Tizen 4.0 |
Firmware update | feature not registered | feature not registered |
User Interface | RTOS | feature not registered |
⚙️ Processor |
| Xiaomi Amazfit T-Rex | Samsung Galaxy Watch Active 2 (Aluminum 40mm SM-R830) |
Chipset | 32bit | 64bit - Samsung Exynos 9 Dual 9110 (10nm) |
CPU | Single-Core, 1 processor: Single-Core | Dual-Core, 1 processor: 1.15GHz Dual-Core ARM Cortex-A53 |
GPU graphical controller | feature not registered | ARM Mali-T720 MP1 |
Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage |
| Xiaomi Amazfit T-Rex | Samsung Galaxy Watch Active 2 (Aluminum 40mm SM-R830) |
RAM memory | 512MB LPDDR3 | 768MB LPDDR3 |
Internal storage | 4GB (2GB available) eMCP | 4GB (1.39GB available) eMMC |
External storage | Not supported | Not supported |
📲 Display |
| Xiaomi Amazfit T-Rex | Samsung Galaxy Watch Active 2 (Aluminum 40mm SM-R830) |
Display type | AMOLED | Super AMOLED |
Screen size | 1.3" inches | 1.2" inches |
Screen-to-body ratio | ~24.2% (screen-to-body ratio) | ~29% (screen-to-body ratio) |
Display resolution | 360x360 pixels | 360x360 pixels (1:1) |
Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
Pixel density (dot pitch) | 392 PPI | 424 PPI |
Colors | 16 million | 16 million |
Scratch-resistant glass | Gorilla Glass 3 | Gorilla Glass DX+ |
Refresh rate | 60Hz | feature not registered |
Display features | Not supported | Not supported |
📶 Mobile networks |
| Xiaomi Amazfit T-Rex | Samsung Galaxy Watch Active 2 (Aluminum 40mm SM-R830) |
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 detailsCollapse 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 |
| Xiaomi Amazfit T-Rex | Samsung Galaxy Watch Active 2 (Aluminum 40mm SM-R830) |
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 |
| Xiaomi Amazfit T-Rex | Samsung Galaxy Watch Active 2 (Aluminum 40mm SM-R830) |
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 |
| Xiaomi Amazfit T-Rex | Samsung Galaxy Watch Active 2 (Aluminum 40mm SM-R830) |
Loudspeaker | feature not registered | Supported |
Active noise cancellation | Not supported | Not supported |
Radio | Not supported | Not supported |
TV | Not supported | Not supported |
Video formats | feature not registered | MP4 |
Audio formats | feature not registered | MP3, WAV, WMA, OGG, eAAC+ |
🔌 Connectivity |
| Xiaomi Amazfit T-Rex | Samsung Galaxy Watch Active 2 (Aluminum 40mm SM-R830) |
USB | Not supported | Not supported |
Audio output | Not supported | Not supported |
TV output | Not supported | Not supported |
Bluetooth | 5.0 + A2DP/LE | 5.0 + A2DP/LE |
WiFi | Not supported | 802.11 b/g/n (2.4Ghz) |
DLNA | Not supported | Not supported |
GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
NFC | Not supported | Supported |
Infrared port | Not supported | Not supported |
🧭 Sensors |
| Xiaomi Amazfit T-Rex | Samsung Galaxy Watch Active 2 (Aluminum 40mm SM-R830) |
Sensors | Accelerometer Ambient Light sensor Compass Heart rate Pedometer SpO2 | Accelerometer Ambient Light sensor Barometer Heart rate Pedometer |
Vibrating alert | Supported | Supported |
🔋 Battery |
| Xiaomi Amazfit T-Rex | Samsung Galaxy Watch Active 2 (Aluminum 40mm SM-R830) |
Battery type | LiPo: Li-Ion polymer (Non removable) | Li-Ion: Lithium-Ion (Non removable) |
Battery capacity | 390 mAh | 247 mAh |
Charger, watts | Standard charging Magnetic charging (dock) | Standard charging Qi wireless charging |
Talk time autonomy | 20 hours | 43 hours (1.8 days) |
Standby | 480 hours (20 days) | feature not registered |
➕ Other features |
| Xiaomi Amazfit T-Rex | Samsung Galaxy Watch Active 2 (Aluminum 40mm SM-R830) |
Call control | Not supported | Voice dialing, Voice recorder, Voice commands |
Messaging | SMS (T9), E-mail | SMS (T9), MMS, E-mail, Push mail |
Hands-free calling | Not supported | Supported |
Video calling | Not supported | Not supported |
Ringtones | feature not registered | Polyphonic and customized |
Web browser | Not supported | Not supported |
Antenna | feature not registered | Internal antenna |
Qwerty physical keyboard | Not supported | Not supported |
Miscellaneous | - Colors: Black, Gray, Camouflage, Army green, Khaki - Watch band: 22mm - BioTracker PPG - 14 sports mode - AppZepp app - Compatible with Android 5.0/iOS 10 and above | - Colors: Black, Silver, Pink Gold - Bands: 20mm - Always-on display - Samsung Pay |
☢️ Radiation rate |
| Xiaomi Amazfit T-Rex | Samsung Galaxy Watch Active 2 (Aluminum 40mm SM-R830) |
SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 0.08W/kg (head), 0.11W/kg (body) |
SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.041W/kg (head), 0.101W/kg (body) |