📱 Model features |
| Xiaomi Amazfit Stratos 2S | Ulefone Watch Pro |
Model | Amazfit Stratos 2S | Watch Pro |
Other model names | Xiaomi Huami Amazfit 2 Stratos A1619, Amazfit Pace 2 | Ulefone Watch Pro SW007, 2AOWKSW007 |
Country or region available |  (Europe) |  (Global, International) |
Brand | Xiaomi | Ulefone |
Release date | 12/12/2017 | 10/27/2020 |
Depth | 15 millimeters (0.59 inches) | 12.15 millimeters (0.48 inches) |
Size (width x height) | 25.4 x 51 millimeters (1 x 2.01 in) | 36.1 x 48.68 millimeters (1.42 x 1.92 in) |
Weight | 68 grams (2.38 ounces) | 22 grams (.77 ounces) |
Build, materials | Plastic body with ceramic and stainless steel, glass front | Plastic body, glass front |
Protection against water and others | 5 ATM: 50 meters waterproof | 5 ATM: 50 meters waterproof |
🤖 Operating System |
| Xiaomi Amazfit Stratos 2S | Ulefone Watch Pro |
System version | Proprietary OS | Proprietary OS |
Firmware update | feature not registered | feature not registered |
User Interface | feature not registered | feature not registered |
⚙️ Processor |
| Xiaomi Amazfit Stratos 2S | Ulefone Watch Pro |
Chipset | 32bit - Ingenic M200S | 32bit - Apollo 3 Blue Plus |
CPU | Dual-Core, 2 processors: 1.2GHz Single-Core XBurst-HP 300MHz Single-Core XBurst-LP | Dual-Core, 1 processor: 96MHz Dual-Core ARM Cortex-M4 |
GPU graphical controller | 3D GPU | feature not registered |
Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage |
| Xiaomi Amazfit Stratos 2S | Ulefone Watch Pro |
RAM memory | 512MB LPDDR2 | 768MB SDRAM |
Internal storage | 4GB (2GB available) eMCP | 2MB Flash (EEPROM) |
External storage | Not supported | Not supported |
📲 Display |
| Xiaomi Amazfit Stratos 2S | Ulefone Watch Pro |
Display type | TFT LCD | TFT LCD |
Screen size | 1.34" inches | 1.55" inches |
Screen-to-body ratio | ~44.6% (screen-to-body ratio) | ~43.8% (screen-to-body ratio) |
Display resolution | 320x300 pixels | 320x360 pixels |
Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
Pixel density (dot pitch) | 327 PPI | 311 PPI |
Colors | 260 thousand | 260 thousand |
Scratch-resistant glass | Sapphire Glass | Not supported |
Refresh rate | feature not registered | 60Hz |
Display features | feature not registered | Not supported |
📶 Mobile networks |
| Xiaomi Amazfit Stratos 2S | Ulefone Watch 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 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 Stratos 2S | Ulefone Watch 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 |
| Xiaomi Amazfit Stratos 2S | Ulefone Watch 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 |
| Xiaomi Amazfit Stratos 2S | Ulefone Watch 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 | feature not registered | feature not registered |
Audio formats | MP3, eAAC+ | MP3, eAAC+ |
🔌 Connectivity |
| Xiaomi Amazfit Stratos 2S | Ulefone Watch Pro |
USB | MicroUSB 2.0 | Not supported |
Audio output | Not supported | Not supported |
TV output | Not supported | Not supported |
Bluetooth | 4.0 + A2DP | 4.2 + A2DP |
WiFi | 802.11 b/g (2.4Ghz) | Not supported |
DLNA | Not supported | Not supported |
GPS | A-GPS, GeoTagging, GLONASS | Not supported |
NFC | Not supported | Not supported |
Infrared port | Not supported | Not supported |
🧭 Sensors |
| Xiaomi Amazfit Stratos 2S | Ulefone Watch Pro |
Sensors | Accelerometer Ambient Light sensor Barometer Compass Gyroscope Heart rate Pedometer | Accelerometer Gyroscope Heart rate Pedometer SpO2 |
Vibrating alert | Supported | Supported |
🔋 Battery |
| Xiaomi Amazfit Stratos 2S | Ulefone Watch Pro |
Battery type | LiPo: Li-Ion polymer (Non removable) | Li-Ion: Lithium-Ion (Non removable) |
Battery capacity | 290 mAh | 210 mAh |
Charger, watts | Standard charging | Standard charging Magnetic charging (dock) |
Talk time autonomy | 30 hours (1.3 days) | 120 hours (5 days) |
Standby | 120 hours (5 days) | 960 hours (40 days) |
➕ Other features |
| Xiaomi Amazfit Stratos 2S | Ulefone Watch Pro |
Call control | Not supported | feature not registered |
Messaging | SMS (T9), E-mail | SMS, 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 | feature not registered | Internal antenna |
Qwerty physical keyboard | Not supported | Not supported |
Miscellaneous | - Colors: Black - Leather watch band - 22mm standard watch band - 2.5D glass display - Dock charger included - Always-on display - Languages: Chinese, English, Spanish - Mi Fit app compatible - Compatible with Android 4.4, iOS 9 and above | - Colors: Black, Gray, Pink - Wristbands: 22mm - 3.5D glass screen - Watch Faces - 14 sports modes - VeryFit Pro App - Supports Android 4.4 or iOS 8 and above |
☢️ Radiation rate |
| Xiaomi Amazfit Stratos 2S | Ulefone Watch 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 |