Physical features | Apple Watch 2 (Hermès 38mm) | Xiaomi Amazfit Stratos |
Model | Watch 2 (Hermès 38mm) | Amazfit Stratos |
Other model names | Apple Watch Hermes Series 2 Stainless Steel A1757 38mm | Xiaomi Huami Amazfit 2 Stratos A1619, Amazfit Pace 2 |
Country or region available |  (Global, International) |  (Global, International) |
Brand | Apple | Xiaomi |
Release date | December, 2016 | December, 2017 |
Depth | 11.4 millimeters (0.45 inches) | 15 millimeters (0.59 inches) |
Size (width x height) | 33.3 x 38.6 millimeters (1.31 x 1.52 in) | 25.4 x 51 millimeters (1 x 2.01 in) |
Weight | 42 grams (1.47 ounces) | 68 grams (2.38 ounces) |
Qwerty physical keyboard | Not supported | Not supported |
Antenna | Not supported | Internal antenna |
Build, materials | Stainless steel body, glass front, ceramic back | Plastic body with ceramic and stainless steel, glass front |
Protection against water and others | 50 meters waterproof | 50 meters waterproof |
System (OS) | Apple Watch 2 (Hermès 38mm) | Xiaomi Amazfit Stratos |
Operating system | WatchOS 3.0 | Proprietary OS |
Firmware update | WatchOS 5.0 | feature not registered |
Hardware | Apple Watch 2 (Hermès 38mm) | Xiaomi Amazfit Stratos |
Chipset | 32bit - Apple S2 (28nm) | 32bit - Ingenic M200S |
CPU processor | 780Mhz Dual-Core ARM Cortex-A7 | Dual-Core, 2 processors: 1.2Ghz Single-Core XBurst-HP 300Mhz Single-Core XBurst-LP |
GPU graphical controller | PowerVR G6200 | 3D GPU |
RAM memory | 512MB LPDDR3 | 512MB LPDDR2 |
Internal storage | 8GB (5GB available) | 4GB (2GB available) eMCP |
External storage | Not supported | Not supported |
Display | Apple Watch 2 (Hermès 38mm) | Xiaomi Amazfit Stratos |
Display type | AMOLED | TFT LCD |
Screen size | 1.5" inches | 1.34" inches |
Screen-to-body ratio | ~55.1% (screen-to-body ratio) | ~44.6% (screen-to-body ratio) |
Display resolution | 340x272 pixels | 320x300 pixels |
Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
Pixel density (dot pitch) | 290 PPI | 327 PPI |
Colors | 16 million | 260 thousand |
Scratch-resistant glass | Sapphire Glass | Gorilla Glass |
Display features | feature not registered | feature not registered |
Mobile networks | Apple Watch 2 (Hermès 38mm) | Xiaomi Amazfit Stratos |
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 |
Calling | Apple Watch 2 (Hermès 38mm) | Xiaomi Amazfit Stratos |
Messaging | SMS, E-mail | SMS (T9), E-mail |
Speakerphone | Supported | Supported |
Video calling | Not supported | Not supported |
Call control | Not supported | Not supported |
Camera | Apple Watch 2 (Hermès 38mm) | Xiaomi Amazfit Stratos |
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 |
2ª camera | Apple Watch 2 (Hermès 38mm) | Xiaomi Amazfit Stratos |
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 |
Multimedia | Apple Watch 2 (Hermès 38mm) | Xiaomi Amazfit Stratos |
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 | MP3, eAAC+ |
Connectivity | Apple Watch 2 (Hermès 38mm) | Xiaomi Amazfit Stratos |
USB | Not supported | MicroUSB 2.0 |
TV output | Not supported | Not supported |
Audio output | Not supported | Not supported |
Bluetooth | 4.0 + A2DP | 4.0 + A2DP |
WiFi | 802.11 b/g/n (2.4Ghz) | 802.11 b/g (2.4Ghz) |
DLNA | Not supported | Not supported |
NFC | Supported | Not supported |
GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging, GLONASS |
Infrared port | Not supported | Not supported |
Other functions | Apple Watch 2 (Hermès 38mm) | Xiaomi Amazfit Stratos |
Active noise cancellation | Not supported | Not supported |
Vibrating alert | Supported | Supported |
Ringtones | feature not registered | feature not registered |
Web browser | Not supported | Not supported |
Sensors | Accelerometer Ambient Light sensor Gyroscope Heart rate Pedometer
| Accelerometer Compass Ambient Light sensor Gyroscope Barometer Heart rate Pedometer
|
Other features | - Colors: Silver - Leather bands - 1000 nits screen - 3D Touch display - Siri - Requires an iPhone 5s/iOS 11 or later | - Colors: Black - 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 |
Power supply | Apple Watch 2 (Hermès 38mm) | Xiaomi Amazfit Stratos |
Battery | Li-Ion: Lithium-Ion (Non removable) | LiPo: Li-Ion polymer (Non removable) |
Battery capacity | 273 mAh | 290 mAh |
Charger, watts | Standard charging Magnetic charging (dock) | Standard charging |
Talk time autonomy | 1080 minutes | 18 hours | 0.8 day | 1800 minutes | 30 hours | 1.3 days |
Standby | feature not registered | 7200 minutes | 120 hours | 5 days |
Radiation rate | Apple Watch 2 (Hermès 38mm) | Xiaomi Amazfit Stratos |
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 |