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Background and Identification

LTE versions of Apple Watch Series 4 can be identified by the distinctive red circle on the digital crown (in place of the red dot from the Series 3). The watch now comes in 40 mm and 44 mm configurations in a variety of colors and materials. Internally, the watch features a newly-engineered digital crown with haptic feedback and an electrical heart sensor for additional readings on that ticker of yours. The battery has a slightly upgraded capacity. The watch now comes with an all ceramic and sapphire crystal back to enhance RF connectivity. Tools and repair procedures remain similar to Apple Watch Series 3.


Sizes: 40 mm or 44 mm


  • Apple Watch (aluminum case for the GPS and the Cellular version, stainless steel case additionally for the Cellular version)
  • Apple Watch Nike+ (aluminum case in silver or space gray)
  • Apple Watch Hermès (polished stainless steel case with Hermès leather band)
  • No more Apple Watch Editions


  • LTPO OLED Retina display with Force Touch
  • 1000 nits of brightness
  • 368 by 448 pixels (44 mm), 324 by 394 pixels (40 mm)

Processor: Custom S4 System in Package with Dual-core processor

Operating System: WatchOS 5

Sensors: improved accelerometer, optical heart rate sensor, electrical heart sensor, improved gyroscope, barometric altimeter, ambient light sensor

Wireless Connectivity:

  • LTE and UMTS in the cellular version
  • GPS, GLONASS, Galileo, QZSS
  • 802.11b/g/n 2.4GHz
  • Bluetooth 5.0


  • GPS+Cellular requires iPhone 6 or later with iOS 12 or later
  • GPS requires iPhone 5s or later with iOS 12 or later

Haptic Feedback: Taptic Engine and built-in speaker combo for instant tactile feedback

Miscellaneous Features:

  • Water resistant 50 meters
  • Apple Pay and Siri support
  • Qi wireless charging

Additional Information

View Statistics:

Past 24 Hours: 279

Past 7 Days: 1,602

Past 30 Days: 6,514

All Time: 50,250