Compare Apple Watch models

Series 4


Series 3

Buy

GPS

GPS

Summary

44mm case

977 sq mm display area

40mm case

759 sq mm display area

42mm case

740 sq mm display area

38mm case

563 sq mm display area

10.7mm thin

11.4mm thin

64-bit dual-core S4 processorUp to 2x faster than S3 processor

Dual-core S3 processor

Electrical heart sensor

Second-generation optical heart sensor

Optical heart sensor

Fall detection

Digital Crown with haptic feedback

Digital Crown

Finishes
+

GPS

Aluminum

GPS

Aluminum

Apple Watch Nike+ available in silver and space gray aluminum.

Apple Watch Nike+ available in space gray aluminum.

Features
+

  • GPS, GLONASS, Galileo, and QZSS
  • GPS, GLONASS, Galileo, and QZSS
  • Barometric altimeter
  • Barometric altimeter
  • Water resistant 50 meters1

  • Water resistant 50 meters1

  • Electrical heart sensor

  • Optical heart sensor
  • Optical heart sensor
  • Improved accelerometerup to 32 g-forces
  • Accelerometer up to 16 g-forces

  • Improved gyroscope
  • Gyroscope
  • Ambient light sensor
  • Ambient light sensor
  • Capacity 16GB
  • Capacity 8GB GPS

  • All ceramic and sapphire crystal back
  • Composite back (center) GPS

Display
+

  • 44mm 368 by 448 pixels
    977 sq mm display area
  • 40mm 324 by 394 pixels
    759 sq mm display area
  • LTPO OLED Retina display with Force Touch 1000 nits brightness
  • 42mm 312 by 390 pixels
    740 sq mm display area
  • 38mm 272 by 340 pixels
    563 sq mm display area
  • OLED Retina display with Force Touch 1000 nits brightness

Chip
+

  • S4 with 64-bit dual-core processor Up to 2x faster processor
  • S3 with dual-core processor
  • W3 Apple wireless chip
  • W2 Apple wireless chip

Connectivity
+

  • Wi-Fi 802.11b/g/n 2.4GHz
  • Bluetooth 5.0
  • Wi-Fi 802.11b/g/n 2.4GHz
  • Bluetooth 4.2

Power
+

  • Built-in rechargeable lithium-ion battery Up to 18 hours2
  • Magnetic charging cable
  • USB power adapter
  • Built-in rechargeable lithium-ion battery Up to 18 hours3
  • Magnetic charging cable