Phone Specifications

Apple Watch Edition 38mm (1st gen) specification and features

Network
Technology No cellular connectivity
2G bands N/A
GPRS No
EDGE No
Launch
Announced 2014, September
Status Available. Released 2015, July
Body
Dimensions 38.6 x 33.3 x 10.5 mm (1.52 x 1.31 x 0.41 in)
Weight 55 g body (3.35 oz)
Build Glass front (Sapphire crystal), ceramic back, 18-karat yellow/rose gold frame
SIM No
  IPX7 water resistant up to 1 meter and 30 minutes
Display
Type OLED capacitive touchscreen, 16M colors
Size 1.5 inches, 7.1 cm2 (~55.1% screen-to-body ratio)
Resolution 340 x 272 pixels (~290 ppi density)
Protection Sapphire crystal glass
  3D Touch display
450 nits max brightness (advertised)
Platform
OS watchOS 1.0, upgradable to 4.3.2
Chipset Apple S1 (28 nm)
CPU 520 MHz Cortex-A7
GPU PowerVR SGX543
Memory
Card slot No
Internal 8GB 512MB RAM
Camera
  No
Sound
Loudspeaker Yes
3.5mm jack No
Comms
WLAN Wi-Fi 802.11 b/g/n
Bluetooth 4.0, LE
GPS No
NFC Yes
Radio No
USB No
Features
Sensors Accelerometer, gyro, heart rate
  Natural language commands and dictation
Battery
  Non-removable Li-Ion 205 mAh battery (0.78 Wh)
Charging Wireless charging
Stand-by Up to 18 h (mixed usage)
Misc
Colors 18-karat Rose Gold/White, Rose Gray Buckle
18-karat Yellow Gold/Black, Red Buckle
Models A1553