The official release date for the Apple Watch was April 25, 2015. The presale for the watch began on April 10 of the same year. The initial release sold out after selling approximately 200,000 units per day during the presale week.
The Apple Watch features time-keeping within 50 milliseconds of the global time standard. The watch allows users to access and send simple icon messages, as well as track fitness activity and daily to-do lists. The watch additionally has a over 3,000 apps available for download. The watch comes in three versions: the standard watch, the Watch Sport for fitness users and the Watch Edition, which features an 18-karat gold case.