Apple has admitted that the watchOS 2 software update for the Apple Watch has been postponed because a bug in the upgrade is taking longer to fix than it first thought.
Apple confirmed the delay in a statement: “We have discovered a bug in development of watchOS 2 that is taking a bit longer to fix than we expected. We will not release watchOS 2 today but will shortly.”
The problem will not affect the release of iOS 9, which is also set to take place on 16 September at 6pm UK time.
The postponement has echoes of the delay to HealthKit last year with the rollout of iOS 8.
The watchOS 2 update was first revealed at the company’s World Wide Developer Conference in June and has been out in beta for developers for some time.
The new operating system provides greater access to the sensors and controls for developers, such as the Taptic Engine and Digital Crown.
Apple also revealed three new third-party apps for the watch: Facebook Messenger, Go Pro and iTranslate.
Apple watchOS 2 brings more native apps to the watch, boosts the functionality of Siri, adds stronger security and provides the ability to wipe the smartwatch if it is lost or stolen.
Another headline addition is WiFi support, which allows the device to be used independently of an iPhone.
Jeff Williams, Apple’s senior vice president of Operations said: “We’re excited to expand Apple Watch’s functionality with watchOS 2 and offer even more personal choice with beautiful new styles and colors.”
As well as the watchOS 2 update Apple also said that the Apple Watch now comes in gold and rose gold anodised aluminium, and new straps for the Sport version of the smartwatch wll come in brown, pink and blue.
One sport strap comes in bright red and has been produced in conjunction with the Project Red charity, to which Apple will donate a portion of its profits for AIDS research.
The company also announced a leather wraparound strap for the Apple Watch made in conjunction with fashion and luxury products brand Hermès. The Apple Watch Hermès also brings a new virtual face for the device.
Apple also showcased an Airstrip healthcare app for the Apple Watch which can show doctors a patient’s important health information at a glance. The app can even monitor a baby’s heartbeat in pregnant women if used with a sensor.