Physical features | Apple Watch 3 Aluminum (38mm) | Samsung Galaxy Watch (42mm SM-R815F) |
Model | Watch 3 Aluminum (38mm) | Galaxy Watch (42mm SM-R815F) |
Other model names | Apple Watch Series 3 A1858 GPS 8GB, Apple Watch S3, iWatch | Galaxy Watch 42mm (4G LTE) SM-R815FZDAAMO, Samsung Galileo |
Country or region available |  (Global, International) |        (Europe), South Africa, Saudi Arabia, Australia, Israel, Singapore, Taiwan |
Brand | Apple | Samsung |
Release date | September, 2017 | August, 2018 |
Depth | 11.4 millimeters (0.45 inches) | 12.7 millimeters (0.5 inches) |
Size (width x height) | 33.3 x 38.6 millimeters (1.31 x 1.52 in) | 41.9 x 45.7 millimeters (1.65 x 1.8 in) |
Weight | 27 grams (.95 ounces) | 49 grams (1.72 ounces) |
Qwerty physical keyboard | Not supported | Not supported |
Antenna | Not supported | Internal antenna |
Build, materials | Aluminum body, glass front, plastic composite back | Stainless steel body, glass front |
Protection against water and others | 50 meters waterproof | 50 meters waterproof. MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant. |
System (OS) | Apple Watch 3 Aluminum (38mm) | Samsung Galaxy Watch (42mm SM-R815F) |
Operating system | WatchOS 4.0 | Tizen 4.0 |
Firmware update | WatchOS 5.0 | feature not registered |
Hardware | Apple Watch 3 Aluminum (38mm) | Samsung Galaxy Watch (42mm SM-R815F) |
Chipset | 32bit - Apple S3 (28nm) | 64bit - Samsung Exynos 9 Dual 9110 (10nm) |
CPU processor | 1Ghz Dual-Core ARM Cortex-A7 | 1.15Ghz Dual-Core ARM Cortex-A53 |
GPU graphical controller | PowerVR G6200 | ARM Mali-T720 MP1 |
RAM memory | 768MB LPDDR4 | 1.5GB LPDDR3 |
Internal storage | 8GB (5GB available) | 4GB (1.5GB available) eMMC |
External storage | Not supported | Not supported |
Display | Apple Watch 3 Aluminum (38mm) | Samsung Galaxy Watch (42mm SM-R815F) |
Display type | AMOLED | Super AMOLED |
Screen size | 1.5" inches | 1.2" inches |
Screen-to-body ratio | ~55.1% (screen-to-body ratio) | ~24.3% (screen-to-body ratio) |
Display resolution | 340x272 pixels | 360x360 pixels (1:1) |
Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
Pixel density (dot pitch) | 290 PPI | 424 PPI |
Colors | 16 million | 16 million |
Scratch-resistant glass | Scratch-resistant glass | Gorilla Glass DX+ |
Display features | feature not registered | Not supported |
Mobile networks | Apple Watch 3 Aluminum (38mm) | Samsung Galaxy Watch (42mm SM-R815F) |
Dual-SIM | Not supported | Not supported |
SIM card | Not supported | 1 slot (Single-SIM) e-SIM (Eletronic) |
Maximum download/upload | feature not registered | 10 Mbps |
Network technology | feature not registered | 3G, 4G |
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 | UMTS 900/1900 |
Primary 4G network | Not supported | LTE (Bands 1,3,7,8,20) |
Primary 5G network | Not supported | Not supported |
Primary data network | Not supported | UMTS, HSDPA, HSUPA, HSPA+, LTE |
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) | Samsung Galaxy Watch (42mm SM-R815F) |
Messaging | SMS, E-mail | SMS (T9), MMS, E-mail, Push mail |
Speakerphone | Supported | Supported |
Video calling | Not supported | Not supported |
Call control | Not supported | Voice dialing, Voice recorder, Voice commands |
Camera | Apple Watch 3 Aluminum (38mm) | Samsung Galaxy Watch (42mm SM-R815F) |
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) | Samsung Galaxy Watch (42mm SM-R815F) |
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) | Samsung Galaxy Watch (42mm SM-R815F) |
Radio | Not supported | Not supported |
TV | Not supported | Not supported |
Video formats | MP4, H.264, H.263 | MP4 |
Audio formats | MP3, WAV, eAAC+, FLAC | MP3, WAV, WMA, OGG, eAAC+ |
Connectivity | Apple Watch 3 Aluminum (38mm) | Samsung Galaxy Watch (42mm SM-R815F) |
USB | Not supported | Not supported |
TV output | Not supported | Not supported |
Audio output | Not supported | Not supported |
Bluetooth | 4.2 + A2DP | 4.2 + 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) | Samsung Galaxy Watch (42mm SM-R815F) |
Active noise cancellation | Not supported | Not supported |
Vibrating alert | Supported | Supported |
Ringtones | feature not registered | Polyphonic and customized |
Web browser | Not supported | Not supported |
Sensors | Accelerometer Ambient Light sensor Gyroscope Barometer Heart rate Pedometer
| Accelerometer Ambient Light sensor Gyroscope Barometer Heart rate Pedometer
|
Other features | - Colors: Silver, Gold, Space Gray - Sport Band or Nike Sport Band - 1000 nits screen - 3D Touch display - Siri | - Colors: Midnight Black, Rose Gold - Straps: Black, Grey, Red, Yellow, Purple, Pink, Brown - Compatible with standard 20mm straps - Always-on display - Rotating bezel - Samsung Pay |
Power supply | Apple Watch 3 Aluminum (38mm) | Samsung Galaxy Watch (42mm SM-R815F) |
Battery | Li-Ion: Lithium-Ion (Non removable) | Li-Ion: Lithium-Ion (Non removable) |
Battery capacity | 279 mAh | 270 mAh |
Charger, watts | Standard charging Magnetic charging (dock) | 3.5W (5V/0.7A) Standard charging Qi wireless charging |
Talk time autonomy | 1080 minutes | 18 hours | 0.8 day | feature not registered |
Standby | feature not registered | 4320 minutes | 72 hours | 3 days |
Radiation rate | Apple Watch 3 Aluminum (38mm) | Samsung Galaxy Watch (42mm SM-R815F) |
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 | 0.383W/kg (head) | 0.383W/kg (body) |