Samsung Gear

Samsung Gear is a line of wearable computing devices produced by Samsung Electronics. The line was first introduced with an Android smartwatch in September 2013 as a spin-off of its Galaxy smartphone and tablet range, and expanded at Mobile World Congress 2014 with a successor, the Tizen-based Gear 2, and the Gear Fit activity tracker.

List of watches

Other Devices

References

Gear

A gear or cogwheel is a rotating machine part having cut teeth, or cogs, which mesh with another toothed part to transmit torque, in most cases with teeth on the one gear being of identical shape, and often also with that shape on the other gear. Two or more gears working in a sequence (train) are called a gear train or, in many cases, a transmission; such gear arrangements can produce a mechanical advantage through a gear ratio and thus may be considered a simple machine. Geared devices can change the speed, torque, and direction of a power source. The most common situation is for a gear to mesh with another gear; however, a gear can also mesh with a linear toothed part, called a rack, thereby producing translation instead of rotation.

The gears in a transmission are analogous to the wheels in a crossed belt pulley system. An advantage of gears is that the teeth of a gear prevent slippage.

When two gears mesh, and one gear is bigger than the other (even though the size of the teeth must match), a mechanical advantage is produced, with the rotational speeds and the torques of the two gears differing in an inverse relationship.

Samsung

Samsung (Hangul: 삼성; hanja: 三星; Korean pronunciation: [sʰamsʰʌŋ]) is a South Korean multinational conglomerate company headquartered in Samsung Town, Seoul. It comprises numerous subsidiaries and affiliated businesses, most of them united under the Samsung brand, and is the largest South Korean chaebol (business conglomerate).

Samsung was founded by Lee Byung-chul in 1938 as a trading company. Over the next three decades, the group diversified into areas including food processing, textiles, insurance, securities and retail. Samsung entered the electronics industry in the late 1960s and the construction and shipbuilding industries in the mid-1970s; these areas would drive its subsequent growth. Following Lee's death in 1987, Samsung was separated into four business groups – Samsung Group, Shinsegae Group, CJ Group and Hansol Group. Since 1990s, Samsung has increasingly globalized its activities and electronics, particularly mobile phones and semiconductors, have become its most important source of income.

Apple Watch

The Apple Watch (marketed stylized as WATCH) is a smartwatch developed by Apple Inc. It incorporates fitness tracking and health-oriented capabilities as well as integration with iOS and other Apple products and services. The device is available in four variants: Apple Watch Sport, Apple Watch, Apple Watch Hermès, and Apple Watch Edition. The Watch is distinguished by different combinations of cases and first or third party interchangeable bands. Apple Watch relies on a wirelessly connected iPhone to perform many of its default functions such as calling and texting. It is compatible with the iPhone 5 or later models running iOS 8.2 or later, through the use of Bluetooth. Announced by Tim Cook on September 9, 2014, the device was available for pre-order on April 10 and began shipping on April 24, 2015. The Apple Watch quickly became the best-selling wearable device at the time, with the shipment of 4.2 million smartwatches in the second quarter of 2015, according to analyst firm Canalys.