Apple Watch

Apple Watch is a line of smartwatches produced by Apple Inc. It incorporates fitness tracking, health-oriented capabilities, and wireless telecommunication, and integrates with iOS and other Apple products and services. The Apple Watch was released in April 2015,[18][19] and quickly became the best-selling wearable device: 4.2 million were sold in the second quarter of fiscal 2015,[20] and more than 100 million people were estimated to use an Apple Watch as of December 2020.[21] Apple has introduced a new generation of the Apple Watch with improved internal components each September[22]—each labeled by Apple as a 'Series', with certain exceptions.[lower-alpha 1]

Quick facts: Developer, Manufacturer, Type, Release date, ... ▼

Apple Watch

Apple Watch Series 1 in Space Gray
Developer	Apple Inc.
Manufacturer	Quanta Computer[1] Compal Electronics[2] (contract manufacturer)
Type	Smartwatch
Release date	1st generation: April 24, 2015; 7 years ago (2015-04-24) Series 1 and Series 2: September 16, 2016; 6 years ago (2016-09-16) Series 3: September 22, 2017; 5 years ago (2017-09-22) Series 4: September 21, 2018; 4 years ago (2018-09-21) Series 5: September 20, 2019; 3 years ago (2019-09-20) Series 6 and SE (1st generation): September 18, 2020; 2 years ago (2020-09-18) Series 7: October 15, 2021; 15 months ago (2021-10-15) Series 8 and SE (2nd generation): September 16, 2022; 4 months ago (2022-09-16) Ultra: September 23, 2022; 4 months ago (2022-09-23)
Discontinued	1st generation: September 7, 2016; 6 years ago (2016-09-07) Series 1: September 21, 2018; 4 years ago (2018-09-21) Series 2: September 12, 2017; 5 years ago (2017-09-12) Series 3: September 7, 2022; 4 months ago (2022-09-07) Series 4: September 10, 2019; 3 years ago (2019-09-10) Series 5: September 15, 2020; 2 years ago (2020-09-15) Series 6: October 8, 2021; 15 months ago (2021-10-08) SE (1st generation) and Series 7: September 7, 2022; 4 months ago (2022-09-07)
Units sold	100 million (estimated, 2020)[3]
Operating system	watchOS
System on a chip	1st generation: Apple S1 Series 1: Apple S1P Series 2: Apple S2 Series 3: Apple S3 Series 4: Apple S4 Series 5, SE (1st generation): Apple S5 Series 6: Apple S6 Series 7: Apple S7 Series 8, SE (2nd generation), Ultra: Apple S8
CPU	1st generation: 32-bit single-core Series 1, Series 2, Series 3: 32-bit dual-core Series 4 onwards: 64-bit dual-core
Memory	1st generation, Series 1, Series 2: 512 MB DRAM[4] Series 3: 768 MB DRAM[5][4] Series 4 and Series 5: 1 GB DRAM[6] Series 6 onwards: 1.5 GB DRAM[7]
Storage	1st generation, Series 1, Series 2: 8 GB[8][5][9] Series 3: 8 GB (GPS) or 16 GB (Cellular)[10] Series 4: 16 GB[11] Series 5 onwards: 32 GB[12][13][14]
Display	OLED[15] with strengthened Ion-X glass or Sapphire glass 1st generation, Series 1, Series 2, Series 3: 38 mm 33.96 mm (1.337 in) diagonal, 272×340 pixels, 326 dpi 42 mm 38.94 mm (1.533 in) diagonal, 312×390 pixels, 326 dpi Series 4, Series 5, SE, Series 6: 40 mm 39.34 mm (1.549 in) diagonal, 324×394 pixels, 326 dpi 44 mm 44.63 mm (1.757 in) diagonal, 368×448 pixels, 326 dpi Series 7, Series 8: 41 mm 42.95 mm (1.691 in) diagonal, 352×430 pixels, 326 dpi 45 mm 48.29 mm (1.901 in) diagonal, 396×484 pixels, 326 dpi Ultra: 48.74 mm (1.919 in) diagonal, 410×502 pixels, 338 dpi 1st generation, Series 1, Series 2, Series 3, Series 4, Series 5: Force Touch
Connectivity	NFC, Diagnostics port 1st generation, Series 1, Series 2: Bluetooth 4.0[16][17] Series 3: LTE cellular data (optional), Bluetooth 4.2[10] Series 4, Series 5, SE, Series 6, Series 7, Series 8: LTE cellular data (optional), Bluetooth 5[11][12][13][14] Ultra: LTE cellular data, Bluetooth 5.3 1st generation, Series 1, Series 2, Series 3, Series 4, Series 5, SE: Wi-Fi (802.11 b/g/n 2.4GHz only) Series 6, Series 7, Series 8, Ultra: Wi-Fi (802.11 b/g/n 2.4GHz & 5 GHz)
Power	Built-in rechargeable Li-Po battery
Dimensions	1st generation, Series 1: 38 mm 38.6 mm × 33.3 mm × 10.5 mm (1.52 in × 1.31 in × 0.41 in) 42 mm 42 mm × 35.9 mm × 10.5 mm (1.65 in × 1.41 in × 0.41 in) Series 2, Series 3: 38 mm 38.6 mm × 33.3 mm × 11.4 mm (1.52 in × 1.31 in × 0.45 in) 42 mm 42.5 mm × 36.4 mm × 11.4 mm (1.67 in × 1.43 in × 0.45 in) Series 4, Series 5, SE, Series 6: 40 mm 40 mm × 34 mm × 10.7 mm (1.57 in × 1.34 in × 0.42 in) 44 mm 44 mm × 38 mm × 10.7 mm (1.73 in × 1.50 in × 0.42 in) Series 7, Series 8: 41 mm 41 mm × 35 mm × 10.7 mm (1.61 in × 1.38 in × 0.42 in) 45 mm 45 mm × 38 mm × 10.7 mm (1.77 in × 1.50 in × 0.42 in) Ultra: 49 mm × 44 mm × 14.4 mm (1.93 in × 1.73 in × 0.57 in)
Backward compatibility	watchOS 1 – 3: iPhone 5 or later watchOS 4 – 5: iPhone 5S or later (GPS Only), iPhone 6 or later (GPS + Cellular) watchOS 6 – 8: iPhone 6S or later watchOS 9: iPhone 8 or later
Predecessor	iPod Nano
Website	apple.com/watch

Each Series has been initially sold in multiple variants defined by the watch casing's material, color, and size (except for the budget watches Series 1 and SE, available only in aluminum,[23][26] and the Ultra, available only in 49 mm uncolored titanium[25]), and beginning with Series 3, by the option in the aluminum variants for LTE cellular connectivity, which comes standard with the other materials.[27] The band included with the watch can be selected from multiple options from Apple, and watch variants in aluminum co-branded with Nike and in stainless steel co-branded with Hermès are also offered, which include exclusive bands, colors, and digital watch faces carrying those companies' branding.[27]

The Apple Watch operates in conjunction with the user's iPhone for functions such as configuring the watch and syncing data with iPhone apps, but can separately connect to a Wi-Fi network for data-reliant purposes, including communications, app use, and audio streaming.[28][29] LTE-equipped models can also perform these functions over a mobile network, and can make and receive phone calls independently when the paired iPhone is not nearby or is powered-off, substantially reducing the need for an iPhone after initial setup.[lower-alpha 2] The oldest iPhone model that is compatible with any given Apple Watch depends on the version of system software installed on each device.[32] As of September 2022^[update], new Apple Watches come with watchOS 9 preinstalled and require an iPhone running iOS 16, which is available for the iPhone 8 and later.[33]