This is the second post of my smartwatch app testing series. In this post I will write about Apple’s watchOS. Apple introduced watchOS together with the first Apple Watch in April 2015. WatchOS is already available in the second version watchOS 2. If you are new to this smartwatch app testing series, in the first post I wrote about Tizen OS and the Samsung Gear S2 smartwatch.
Together with the watchOS release, Apple also released the watchKit for developers, an SDK to develop apps for the smartwatch. Apple Watch apps can either be written in Objective-C or Swift, the new open source programming language from Apple. If you want to get started with watchOS, I recommend you to read the following links: