Apple Watch Sport 42mm (1st gen) vs Apple Watch 38mm (1st gen)

Phones Images
PHONES
Phone Names Apple Watch Sport 42mm (1st gen) Apple Watch 38mm (1st gen)
Network
2G bandsN/AN/A
EDGENoNo
GPRSNoNo
TechnologyNo cellular connectivityNo cellular connectivity
Launch
Announced2014, September. Released 2015, April2014, September. Released 2015, May
StatusDiscontinuedDiscontinued
Body
BuildGlass front, composite plastic back, aluminum frameGlass front (Sapphire crystal), ceramic/sapphire crystal back, stainless steel frame
Dimensions42 x 35.9 x 10.5 mm (1.65 x 1.41 x 0.41 in)38.6 x 33.3 x 10.5 mm (1.52 x 1.31 x 0.41 in)
SIMNoNo
Weight30 g body (2.47 oz)40 g body (2.72 oz)
 IPX7 water resistant up to 1 meter and 30 minutesIPX7 water resistant up to 1 meter and 30 minutes
Display
ProtectionIon-X strengthened glassSapphire crystal glass
Resolution390 x 312 pixels (~302 ppi density)340 x 272 pixels (~290 ppi density)
Size1.65 inches1.5 inches
TypeRetina OLED, 450 nits (peak)Retina OLED, 450 nits (peak)
 3D Touch display3D Touch display
Platform
CPU520 MHz Cortex-A7520 MHz Cortex-A7
ChipsetApple S1 (28 nm)Apple S1 (28 nm)
GPUPowerVR SGX543PowerVR SGX543
OSwatchOS 1.0, upgradable to watchOS 4.3.2watchOS 1.0, upgradable to watchOS 4.3.2
Memory
Card slotNoNo
Internal8GB 512MB RAM8GB 512MB RAM
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker YesYes
Comms
Bluetooth4.0, LE4.0, LE
NFCYesYes
PositioningNoNo
RadioNoNo
USBNoNo
WLANWi-Fi 802.11 b/g/nWi-Fi 802.11 b/g/n
Features
SensorsAccelerometer, gyro, heart rateAccelerometer, gyro, heart rate
 Natural language commands and dictationNatural language commands and dictation
Battery
ChargingWirelessWireless
TypeLi-Ion 250 mAh (0.94 Wh), non-removableLi-Ion 205 mAh (0.78 Wh), non-removable
Misc
ColorsSilver/White, Orange, Blue; Gray/Black; Rose Gold/Lavender, Stone; Gold/White, Blue, Yellow, Apricot, Royal Blue, Pink/Royal Blue/Gold&Red/Black Woven NylonStainless Steel/Red, White, Brown/Black/Blue/Red/Marigold/Jay Buckle, Blue/Stone Leather Loop, Silver/Space Black Milanese Loop, Link Bracelet, Space Black Stainless Steel/Black, Black Link Bracelet, Pearl Woven Nylon
ModelsA1554A1553
PriceAbout 250 EURAbout 650 EUR
Camera
 NoNo