Apple Watch 42mm (1st gen) vs Apple Watch Series 3 Aluminum

Phones Images
PHONES
Phone Names Apple Watch 42mm (1st gen) Apple Watch Series 3 Aluminum
Network
2G bandsN/AGSM 850 / 900 / 1800 / 1900
3G bands-HSDPA 850 / 900 / 2100 / 800 - Europe, Australia (A1891)
4G bands-1, 3, 5, 7, 8, 18, 19, 20, 26 - Europe, Australia (A1891)
EDGENo-
GPRSNo-
Speed-HSPA, LTE
TechnologyNo cellular connectivityGSM / HSPA / LTE
 -1, 3, 39, 40, 41 - China (A1892)
Launch
Announced2014, September. Released 2015, April2017, September. Released 2017, September
StatusDiscontinuedDiscontinued
Body
BuildGlass front (Sapphire crystal), ceramic/sapphire crystal back, stainless steel frameGlass front, ceramic back, aluminum frame
Dimensions42 x 35.9 x 10.5 mm (1.65 x 1.41 x 0.41 in)42.5 x 36.4 x 11.4 mm (1.67 x 1.43 x 0.45 in)
SIMNoeSIM
Weight50 g body (2.82 oz)34.9 g (1.23 oz)
 IPX7 water resistant up to 1 meter and 30 minutes50m water resistant
Display
ProtectionSapphire crystal glassIon-X strengthened glass
Resolution390 x 312 pixels (~303 ppi density)390 x 312 pixels (~303 ppi density)
Size1.65 inches1.65 inches
TypeRetina OLED, 450 nits (peak)Retina OLED, 1000 nits (peak)
 3D Touch display3D Touch display
Platform
CPU520 MHz Cortex-A7Dual-core
ChipsetApple S1 (28 nm)Apple S3
GPUPowerVR SGX543PowerVR
OSwatchOS 1.0, upgradable to watchOS 4.3.2watchOS 4.0, upgradable to watchOS 8.7
Memory
Card slotNoNo
Internal8GB 512MB RAM8GB 768MB RAM, 16GB 768MB RAM
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker YesYes
Comms
Bluetooth4.0, LE4.2, A2DP, LE
NFCYesYes
PositioningNoGPS, GLONASS
RadioNoNo
USBNoNo
WLANWi-Fi 802.11 b/g/nWi-Fi 802.11 b/g/n
Features
SensorsAccelerometer, gyro, heart rateAccelerometer, gyro, heart rate, barometer
 Natural language commands and dictationNatural language commands and dictation (talking mode)
Battery
ChargingWirelessWireless
TypeLi-Ion 250 mAh (0.94 Wh), non-removableLi-Ion 341 mAh (1.34 Wh), non-removable
Misc
ColorsStainless Steel/Red, White, Brown/Black/Blue/Marine Blue Buckle, Blue/Stone/White/Storm Gray Leather Loop, Silver/Space Black Milanese Loop, Link Bracelet, Space Black Stainless Steel/Black, Black Link Bracelet, Pearl Woven NylonSilver, Gold, Space Gray
ModelsA1554A1860, A1861, A1889, A1891, A1890, A1892, A1858, A1859
PriceAbout 700 EURAbout 480 EUR
SAR-0.52 W/kg (head)     0.34 W/kg (body)
Camera
 NoNo