http://wccftech.com/download-watchos-4-gm/ >You can download watchOS 4 GM (Gold Master) for your Apple Watch. Here’s how you can update your wearable right now. >Unlike every other software from Apple, watchOS 4 is available for download only for registered developers. So, if you’ve been testing out the latest wearable firmware for Apple Watch, then you’ll be pleased to learn that watchOS 4 GM is now available to download for you.