How to update Apple Watch: updating to WatchOS 2 needs an iPhone with iOS 9 HD

Updating Apple Watch to WatchOS 2 is easy. Be prepared: installing took me an entire hour! You need your iPhone on iOS 9 and the watch must be on the charger, charged more than 50% I am so excited about this update! The reason is: In the first version of WatchOS, most of the apps functionality were actually happening on the iPhone… Your touches on the watch were sent to the iPhone and the resulting screens were sent back to the watch, so, third-party apps were really… sluggish. On the new Watch OS 2, developers can make apps that will run on the Watch itself - much more responsive. The whole update took me the following times: 17 minutes Downloading 5 minutes Preparing 1 minute Verifying 37 minutes Installing / Restarting How was it for you?