Compare Apple Watch models

Apple Watch Series 4

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GPS + CellularGPS

Apple Watch Series 3

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GPS + CellularGPS

Summary

44mm case with 977 sq mm display area. 40mm case with 759 sq mm display area

10.7mm thin

64-bit dual-core S4 processor

Up to 2x times faster than S3 processor

Electrical heart sensor

Second-generation optical heart sensor

Fall detection

Digital Crown with haptic feedback

42mm case with 740 sq mm display area. 38mm case with 563 sq mm display area

11.4mm thin

Dual-core S3 processor

Optical heart sensor

Digital Crown

Finishes

GPS + Cellular

Stainless Steel

Aluminum

GPS

Aluminum

GPS + Cellular

Aluminum

GPS

Aluminum

Features

GPS, GLONASS, Galileo, and QZSS

Barometric altimeter

Water resistant

50 meter1

Electrical heart sensor

Optical heart sensor

Improved accelerometer

up to 32 g-forces

Improved gyroscope

Ambient light sensor

Capacity 16GB

A

B

C

All ceramic and
sapphire crystal back

GPS, GLONASS, Galileo, and QZSS

Barometric altimeter

Water resistant

50 meter1

electrical sensor

Optical heart sensor

Accelerometer

up to 16 g-forces

Gyroscope

Ambient light sensor

Capacity 16GB

GPS + Cellural

Capacity 8GB

GPS

Ceramic and sapphire crystal back (center)

GPS + Cellular

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

W3

Apple wireless chip

S3 with dual-core processor

W2

Apple wireless chip

Connectivity

LTE and UMTS2

GPS + Cellular models

Wi-Fi (802.11b/g/n 2.4GHz)

Bluetooth 5.0

LTE and UMTS2

GPS + Cellular models

Wi-Fi (802.11b/g/n 2.4GHz)

Bluetooth 4.2

Power

Built-in rechargeable lithium-ion battery

Up to 18 hours3

Magnetic charging cable

USB power adapter

Built-in rechargeable lithium-ion battery

Up to 18 hours4

Magnetic charging cable

USB power adapter

GPS + Cellular model only

  1. Apple Watch Series 3 and Series 4 have a water resistance rating of 50 meters under ISO standard 22810:2010. This means that they may be used for shallow-water activities like swimming in a pool or ocean. However, they should not be used for scuba diving, waterskiing, or other activities involving high-velocity water or submersion below shallow depth.

  2. Wireless service plan required for cellular service. Apple watch and iPhone service provider must be the same. Not all service providers support enterprise accounts; check with your employer and service provider. Roaming is not available outside your carrier network coverage area. Contact your service provider for more details. Check www.apple.com/watch/cellular for participating wireless carriers and eligibility.
  3. Apple Watch All-Day Battery Life testing was conducted by Apple in 2018 using preproduction Apple Watch Series 4 (GPS) and Apple Watch Series 4 (GPS + Cellular), each paired with an iPhone; all devices were tested with prerelease software. Battery life varies by use, cellular coverage, configuration, and many other factors; actual results will vary. See www.apple.com/batteries and www.apple.com/watch/battery.html for more information.
  4. Apple Watch All-Day Battery Life testing was conducted by Apple in 2018 using preproduction Apple Watch Series 3 (GPS) and Apple Watch Series 3 (GPS + Cellular), each paired with an iPhone; all devices were tested with prerelease software. Battery life varies by use, cellular coverage, configuration, and many other factors; actual results will vary. See www.apple.com/batteries and www.apple.com/watch/battery.html for more information.
  • Apple Watch Series 4 (GPS + Cellular) requires an iPhone 6 or later with iOS 12 or later. Apple Watch Series 4 (GPS) requires an iPhone 5s or later with iOS 12 or later. Apple Watch Series 3 (GPS + Cellular) requires an iPhone 6 or later with iOS 11 or later. Apple Watch Series 3 (GPS) requires an iPhone 5s or later with iOS 11 or later.
  • Features are subject to change. Some features, applications and services may not be available in all regions or all languages. See www.apple.com/watches/feature-availability for complete list.