The next version of iOS brings a feature many iPhone owners have wanted for years: a low power mode that can add up to three hours of battery life on the same phone.
When enabled, the system reduces background activity, mail fetching and visual effects. Apple says the update was also optimised throughout, so even with the mode switched off most devices should last a little longer.
The update is free and supports every iPhone that runs the current version. A public beta opens next month, with the final release expected in the autumn.
