Specifications of the Apple Watch Series 4

• Processor: Apple dual-core 64-bit S4
• Display: 1.78 inch, LTPS OLED Retina 448×368 pixels resolution
• Operating system: WatchOS 5
• Storage: 16 GB internal storage
• Wireless technology: NFC, 802.11 b/g/n WiFi, Bluetooth 5.0, and GPS/Glonass/Galileo. LTE is available on select models too.
• Sensors: 32 g-force accelerometer, barometer, gyro, ECG electrode, optical heart rate, ambient light
• Other features: IP68 and 5 ATM dust and water resistant, integrated microphone and speaker
• Battery: Up to 18 hours of advertised battery life
• Dimensions: 44mm models. Large one measures 44 x 38 x 10.7 mm and weighs 48 grams