40mm LTPO OLED Retina display
1000 nits brightness.
368 by 448 pixels.
977 sq mm display area.
Second-generation optical heart sensor
Digital Crown with haptic feedback
S4 with 64-bit dual-core processor. Up to 2x faster processor
GPS, GLONASS, Galileo, and QZSS
16GB of internal storage
Battery & Power
Built-in rechargeable lithium-ion battery: Up to 18 hours.
Magnetic Charging Cable.
USB Power Adapter