Apple has solved the problem of smartwatch battery life with its latest software update iOS 9.3 and WatchOS 2.2.

Users will now be able to pair more than one Apple Watch to an iPhone and automatically switch between them, which means the faithful can now replace a watch that has run out of battery by hot-swapping to a fresh one.

It will of course involve owning multiple Apple Watches.



This may suit some Apple Watch wearers, who could now have one for day and one for night – or perhaps one for every day of the week.

The hot-swapping feature will roll out in the latest version of Apple’s iPhone software iOS 9.3 and within the latest version of its Apple Watch software, WatchOS 2.2.

All a user needs to do is put a watch on and raise their wrist in order to activate a pre-registered Apple Watch.

Apple Watch Edition users will finally be able to quickly switch to their Apple Watch Sport, should they enter a less than desirable area or wish to go running with a slightly lighter, less gaudy version, without having to switch their iPhone too.