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

Phones Images
Apple Watch 38mm (1st gen) Apple Watch Sport 42mm (1st gen)
PHONES
Phone Names Apple Watch 38mm (1st gen) Apple Watch Sport 42mm (1st gen)
Network
2G bandsN/AN/A
EDGENoNo
GPRSNoNo
TechnologyNo cellular connectivityNo cellular connectivity
Launch
Announced2014, September. Released 2015, May2014, September. Released 2015, April
StatusDiscontinuedDiscontinued
Body
BuildGlass front (Sapphire crystal), ceramic/sapphire crystal back, stainless steel frameGlass front, composite plastic back, aluminum frame
Dimensions38.6 x 33.3 x 10.5 mm (1.52 x 1.31 x 0.41 in)42 x 35.9 x 10.5 mm (1.65 x 1.41 x 0.41 in)
SIMNoNo
Weight40 g body (2.72 oz)30 g body (2.47 oz)
 IPX7 water resistant up to 1 meter and 30 minutesIPX7 water resistant up to 1 meter and 30 minutes
Display
ProtectionSapphire crystal glassIon-X strengthened glass
Resolution340 x 272 pixels (~290 ppi density)390 x 312 pixels (~302 ppi density)
Size1.5 inches1.65 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 205 mAh (0.78 Wh), non-removableLi-Ion 250 mAh (0.94 Wh), non-removable
Misc
ColorsStainless 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 NylonSilver/White, Orange, Blue; Gray/Black; Rose Gold/Lavender, Stone; Gold/White, Blue, Yellow, Apricot, Royal Blue, Pink/Royal Blue/Gold&Red/Black Woven Nylon
ModelsA1553A1554
PriceAbout 650 EURAbout 250 EUR
Camera
 NoNo