Apple Watch is a line of smart watches by Apple Inc., announced by Tim Cook on April 24, 2015[9]. Apple Watch in addition to the function of a normal wristwatch, it can also track sports training, step counting, heart rate, menstrual cycle, sleep, as well as related functions When it comes to health and wellness, it’s compatible with iOS and other Apple products and services, such as making phone calls, reading messages, and getting notifications synced from apps on the iPhone that Apple Watch pairs with.

The Apple Watch runs on watchOS, which largely depends on the iPhone it paired with in the early generations. From the Series 3 generation, in addition to Wi-Fi, 4G LTE connectivity with eSIM was added, Apple Watch was able to work independently with more features.[10] Since the first generation was introduced in April 2015, Apple Watch quickly became the best-selling smart wearable in the world. 4.2 million units were sold in the second quarter of 2015[11]. Unlike its competitors (round watch faces), Apple Watch has a different design with a square watch face. The next generations are introduced annually in September each year, during the same event as Apple’s new iPhone generation event.

Apple Watch each generation has many versions, often distinguished by the material, color, and size of the watch face. Apple Watch can flexibly change many types of straps, from brands like Nike or high-end Hermès.

Apple Watch Series 4 and Series 5 already have two watch face sizes: 40 mm (1.6 in) and 44 mm (1.7 in), replacing the 38 mm (1.5 in) and 42 mm (1.7 in) sizes. of the Series 2 and 3. Due to Series 4 and 5, the watch face design becomes borderless with thinner screen edges than the previous generation.

The strap for the old 38 mm (1.5 in) version fits the new 40 mm (1.6 in) and the old 42 mm (1.7 in) strap fits the new 44 mm (1.7 in).

Apple Watch is charged using inductive charging, using a cable similar to the MagSafe cable on Apple’s MacBooks. The OLED touchscreen has Force Touch technology, which distinguishes between touch and tap. The watch also has a side button to show recently used apps and access Apple Pay. The Apple Watch Series is water-resistant, making it perfect for swimming and surfing.[12]

Apple Watch appears in many reports to have saved users’ lives when they got stuck or lost.

Digital Crown trên Apple Watch là gì? Cách dùng như thế nào? - Tin tức Apple,  công nghệ - Tin tức ShopDunk

As of September 2019, six generations of Apple Watch have been released. Currently, only Series 3 and Series 5 are still produced and sold by Apple at the Apple Store.

In September 2020, Apple Watch Series 6 and Apple Watch SE in an event called Time Flies with the promise that this is a pharmaceutical product born to fight Covid-19.

Apple Watch Series 6 has lag even though it is new and CANNOT measure blood oxygen

Apple Watch models have been divided into five “collections”:

Apple Watch (1st generation – present) (Apple Watch made of aluminum or stainless steel case and various watch bands),

Apple Watch Sport (1st generation) (Apple Watch Sport made of aluminum case and sports band or woven nylon band),

Apple Watch Nike+ (Series 2 – present) (Apple Watch Nike+ made of aluminum case and Nike sports band or sports band),

Apple Watch Hermès (1st generation – present) (Apple Watch Hermès uses a stainless steel case and Hermès leather strap, also includes an exclusive Hermès orange sport band),

Apple Watch Edition (1st generation – Series 3, Series 5) (Apple Watch Edition in ceramic or titanium, 1st generation Apple Watch in 18 karat or rose gold).

First generation

Apple S1

The first-generation Apple Watch (commonly known as Series 0) used a single-core S1 system chip. It doesn’t have a built-in GPS chip, instead relying on a paired iPhone for location services. It uses a linear actuator called the “Taptic Engine” to provide haptic feedback when an alert or notification is received and is used for other purposes by certain applications. [5] The watch is equipped with a built-in heart rate sensor, which uses both infrared and LED lights and photodiodes.[13] All versions of the first-generation Apple Watch come with 8 GB of storage; The operating system allows users to store up to 2 GB of music and 75 MB of photos. When an Apple Watch is paired with an iPhone, all music on that iPhone is also available to be controlled and accessed from the Apple Watch.[14] Software support for the first Apple Watch ended with watchOS 4.3.

Fourth Generation (Series 4)

Apple Watch Series 4

Apple Watch Series 4[15] features a larger display with thinner bezels and rounded corners, a slightly slimmer, rounded chassis with redesigned ceramic back, new 64-bit S4 dual-core processor capable of doubling the performance of the S3, upgraded 16GB of internal memory, new options for customizing watch faces, and a new electrocardiogram sensor that works by measuring the potential difference between your wrist and finger from the opponent’s hand onto the S4 Module for 30 seconds. The ECG system received a license from the US Food and Drug Administration, the first for a consumer device,[16] and is supported by the American Heart Association.[17] The device can also detect falls and will automatically contact emergency services unless the user cancels the outgoing call. The microphone is moved to the opposite side between the side button and the digital control knob to improve call quality. Other changes include a digital crown that combines haptic feedback with the Apple Haptic Engine and includes a new Apple-designed W3 wireless chip.

The watch received mostly positive reviews from critics. TechRadar gave it a 4.5/5, calling it one of the top smartwatches, and criticizing its battery life for being too short.[18] Digital Trends gave it a rating of 5/5, calling it Apple’s best product and praising the design, build quality, and software, also criticizing the battery life.[19] CNET gave it an 8.2/10, calling it “the best smartwatch overall today”, while criticizing the battery life and lack of watch face options.[20] The T3 gives it a score of 5/5, calling it a “true next-generation smartwatch” due to its slimmer body and larger display compared to the Series 3 and health features.[21]

Fifth Generation (Series 5)

Apple Watch Series 5

Apple Watch Series 5 was announced on September 10, 2019.[22] Its main improvements over the previous generation are the addition of a compass and always-on display with a low-power display driver capable of a refresh rate as low as once per second. Additional new features include International Emergency Calling that allows emergency calls to be made in more than 150 countries, more energy efficient S5 processor,[citation needed] improved pulse light sensor around and the memory doubles to 32 GB. It also brings back the “Edition” tier, with a ceramic model absent from the previous generation and a new titanium model available in two colors: natural and Space Black.[23]

Series 5 and later (including the SE model introduced in 2020) also incorporate enhanced hardware and software-based battery and performance management.[24]

Critics generally give it positive reviews. CNET gave this generation a 4 out of 5, concluding, “The Apple Watch continues to be one of the best smartwatches around, but is still limited by its current status as an iPhone accessory.”[25] Digital Trends score 4.5/5.[26] The Verge gave it a 9/10.[27]

Sixth Generation (Series 6 and SE)

Apple S6

The Apple Watch Series 6 was announced on September 15, 2020, during an Apple Special Event, and begins shipping September 18. Its main improvement over its predecessor is the inclusion of an Apple Watch Series 6. sensor to monitor blood oxygen saturation.[28]

Additional features include a new S6 processor up to 20% faster than the S4 and S5,[29] an always-on 2.5x brighter display and an always-on altimeter.[30] The S6 packs an updated third-generation optical heart rate sensor and enhanced telecommunications technology, including support for ultra-wideband (UWB) through Apple’s U1 chip and the ability to connect to Wi-Fi networks. -Fi 5 GHz. Series 6 watches have been updated with faster charging hardware to complete charging in ~1.5 hours.[31] Force Touch hardware removed, consistent with the removal of all Force Touch functionality from watchOS 7.

Series 6 watches are available in Product Red and Navy Blue color options.

At the product launch event in September 2020, Apple also announced the Apple Watch SE, a cheaper model.[29] The SE incorporates the same always-on altimeter as the Series 6,[32] but uses the previous generation S5 processor and the previous generation (ie second) optical heart rate sensor; does not include electrocardiogram and blood concentration sensor or always-on display; and does not include UWB or 5GHz Wi-Fi communication.

Seventh Generation (Series 7)

The Apple Watch Series 7 was announced on September 14, 2021, during an Apple Special Event.[33] Pre-orders opened on October 8, with the earliest delivery starting October 15.

Improvements over the previous generation Series 6 watches include a more rounded design with a slightly larger case; the screen is 70% brighter indoors and about 20% larger; improved durability through a front crack-resistant crystal;[34] IP6X certified for dust resistance; Charge 33% faster through improved internal electronics and enhanced USB-C-based fast charging cable; support for BeiDou (Chinese satellite navigation system); and the availability of a touch- or swipe-able on-screen keyboard.[35] The Series 7 is also equipped with new hardware that enables extremely fast, short-range wireless data transfers at 60.5GHz, although Apple has not fully explained this new functionality.[36]

Following Apple’s announcement of the Series 7, an independent software development company filed a lawsuit against Apple alleging inappropriate copying of software keyboard functionality from an app that Apple had previously rejected from the App. Their store.[37][38]