Physical features | Apple Watch 3 Aluminum (38mm) | Apple Watch 2 (Nike+ 42mm) |
Model | Watch 3 Aluminum (38mm) | Watch 2 (Nike+ 42mm) |
Other model names | Apple Watch Series 3 A1858 GPS 8GB, Apple Watch S3, iWatch | Apple Watch Nike+ Series 2 A1758 42mm, iWatch Nike Plus |
Country or region available |  (Global, International) |  (Global, International) |
Brand | Apple | Apple |
Release date | September, 2017 | December, 2016 |
Depth | 11.4 millimeters (0.45 inches) | 11.4 millimeters (0.45 inches) |
Size (width x height) | 33.3 x 38.6 millimeters (1.31 x 1.52 in) | 36.4 x 42.5 millimeters (1.43 x 1.67 in) |
Weight | 27 grams (.95 ounces) | 34 grams (1.19 ounces) |
Qwerty physical keyboard | Not supported | Not supported |
Antenna | Not supported | Not supported |
Build, materials | Aluminum body, glass front, plastic composite back | Aluminum body, glass front, ceramic back |
Protection against water and others | 50 meters waterproof | 50 meters waterproof |
System (OS) | Apple Watch 3 Aluminum (38mm) | Apple Watch 2 (Nike+ 42mm) |
Operating system | WatchOS 4.0 | WatchOS 3.0 |
Firmware update | WatchOS 5.0 | WatchOS 5.0 |
Hardware | Apple Watch 3 Aluminum (38mm) | Apple Watch 2 (Nike+ 42mm) |
Chipset | 32bit - Apple S3 (28nm) | 32bit - Apple S2 (28nm) |
CPU processor | 1Ghz Dual-Core ARM Cortex-A7 | 780Mhz Dual-Core ARM Cortex-A7 |
GPU graphical controller | PowerVR G6200 | PowerVR G6200 |
RAM memory | 768MB LPDDR4 | 512MB LPDDR3 |
Internal storage | 8GB (5GB available) | 8GB (5GB available) |
External storage | Not supported | Not supported |
Display | Apple Watch 3 Aluminum (38mm) | Apple Watch 2 (Nike+ 42mm) |
Display type | AMOLED | AMOLED |
Screen size | 1.5" inches | 1.65" inches |
Screen-to-body ratio | ~55.1% (screen-to-body ratio) | ~55.4% (screen-to-body ratio) |
Display resolution | 340x272 pixels | 390x312 pixels |
Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
Pixel density (dot pitch) | 290 PPI | 303 PPI |
Colors | 16 million | 16 million |
Scratch-resistant glass | Scratch-resistant glass | Scratch-resistant glass |
Display features | feature not registered | feature not registered |
Mobile networks | Apple Watch 3 Aluminum (38mm) | Apple Watch 2 (Nike+ 42mm) |
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 3 Aluminum (38mm) | Apple Watch 2 (Nike+ 42mm) |
Messaging | SMS, E-mail | SMS, E-mail |
Speakerphone | Supported | Supported |
Video calling | Not supported | Not supported |
Call control | Not supported | Not supported |
Camera | Apple Watch 3 Aluminum (38mm) | Apple Watch 2 (Nike+ 42mm) |
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 3 Aluminum (38mm) | Apple Watch 2 (Nike+ 42mm) |
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 3 Aluminum (38mm) | Apple Watch 2 (Nike+ 42mm) |
Radio | Not supported | Not supported |
TV | Not supported | Not supported |
Video formats | MP4, H.264, H.263 | MP4, H.264, H.263 |
Audio formats | MP3, WAV, eAAC+, FLAC | MP3, WAV, eAAC+, FLAC |
Connectivity | Apple Watch 3 Aluminum (38mm) | Apple Watch 2 (Nike+ 42mm) |
USB | Not supported | Not supported |
TV output | Not supported | Not supported |
Audio output | Not supported | Not supported |
Bluetooth | 4.2 + A2DP | 4.0 + A2DP |
WiFi | 802.11 b/g/n (2.4Ghz) | 802.11 b/g/n (2.4Ghz) |
DLNA | Not supported | Not supported |
NFC | Supported | Supported |
GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging, GLONASS |
Infrared port | Not supported | Not supported |
Other functions | Apple Watch 3 Aluminum (38mm) | Apple Watch 2 (Nike+ 42mm) |
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 Barometer Heart rate Pedometer
| Accelerometer Ambient Light sensor Gyroscope Heart rate Pedometer
|
Other features | - Colors: Silver, Gold, Space Gray - Sport Band or Nike Sport Band - 1000 nits screen - 3D Touch display - Siri | - Colors: Space gray, Silver - Sport or woven nylon bands - 1000 nits screen - 3D Touch display - Siri - Requires an iPhone 5s/iOS 11 or later |
Power supply | Apple Watch 3 Aluminum (38mm) | Apple Watch 2 (Nike+ 42mm) |
Battery | Li-Ion: Lithium-Ion (Non removable) | Li-Ion: Lithium-Ion (Non removable) |
Battery capacity | 279 mAh | 334 mAh |
Charger, watts | Standard charging Magnetic charging (dock) | Standard charging Magnetic charging (dock) |
Talk time autonomy | 1080 minutes | 18 hours | 0.8 day | 1080 minutes | 18 hours | 0.8 day |
Standby | feature not registered | feature not registered |
Radiation rate | Apple Watch 3 Aluminum (38mm) | Apple Watch 2 (Nike+ 42mm) |
SAR 1.6W/kg (USA, Mexico, etc.) | 0.17W/kg (head) | 0.03W/kg (body) | feature not registered |
SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |