How to prepare your iPhone or iPad for iOS 8

The latest version of Apple's mobile operating system is now available. Here's what you need to know before downloading it .

Dan Graziano Associate Editor / How To
Dan Graziano is an associate editor for CNET. His work has appeared on BGR, Fox News, Fox Business, and Yahoo News, among other publications. When he isn't tinkering with the latest gadgets and gizmos, he can be found enjoying the sights and sounds of New York City.
Dan Graziano
3 min read

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Apple announced the eighth major release of its iOS mobile operating system at its Worldwide Developers Conference in June. The latest version of iOS include improvements to the Siri voice assistant, a new health and wellness app, and revamped notifications, among other things.

Apple made iOS 8 available for download on Wednesday, September 17. Here's what you need to know before updating your device.

For more helpful iOS 8 tips, be sure to check out our complete guide to iOS 8.

Check compatibility

If you've been holding on to the original iPad or iPhone 4, it may be time to update to a newer device. Not every one of Apple's devices is capable of being updated to iOS 8 . The company has said the following devices will be receiving the update: iPhone 4S, iPhone 5, iPhone 5S, iPhone 5C, iPad 2, third- and fourth-generation iPad, iPad Air, fifth-generation iPod Touch, iPad Mini, and iPad Mini with Retina display.

Screenshot by Dan Graziano/CNET

Free up some space

The over-the-air iOS 8 update package is about 1.1GB depending on your device, however users are required to have nearly 6GB of free space on their devices in order to actually download and install the update. You can download the update directly through iTunes, which will require less space. Nevertheless, now it a good time to free up some space on your device.

I recommend deleting unused apps (which can be done with a long press to the icon, then hitting the X which appears when the apps start shaking), and moving photos to iCloud or another cloud service such as Dropbox or Google Drive. You can also move photos and videos to your computer to free up space rather than having to delete old memories.

Screenshot by Dan Graziano/CNET

Connect your iPhone or iPad to your computer using the USB cord, then, on a Mac or MacBook, use iPhoto to import all or select photos to your computer. From a Windows computer, enter My Computer, select your device under the Portable Devices section, click on the DCIM folder, and simply drag and drop which photos or videos you would like to transfer to your computer.

To see how much storage is remaining on your iOS device, enter Settings, click on General, and select Usage.

Check for updates

Now would also be a good time to install any lingering software updates you have been holding off on. You will need to be on the latest version of iOS to update to iOS 8. To check for updates, enter Settings, click on General, and select Software Update.

You should also install any app updates that are available before updating to iOS 8 to ensure that your apps will work properly after the move.

Back up your device

Although you are unlikely to run into any major problems when updating, it's always a good idea to have a backup of your device. You know what they say, it's better to have it and not need it, than to need it and not have it.

Screenshot by Dan Graziano/CNET

There are two methods for backing up your device. The first is with iTunes, which will store a backup file on your computer. For this method, you should have the latest version of iTunes installed. Start by connecting your iPhone or iPad to the computer with the USB cable. Then, select your device and click on the Summary tab in the top menu. Make sure that your computer is selected, and then click on the "Back Up Now" button on the right-hand side. If you rather back up your data to Apple's cloud service, select the iCloud option located above the computer option.

Data can also be backed up directly from your device to iCloud. Make sure Wi-Fi is enabled, then enter Settings, select iCloud, and click on Storage & Backup. From here you can choose which files and settings you would like to store on the cloud. Once you have made your selections, scroll to the bottom of the page and click on the "Back Up Now" option.

30 tips every new iOS 8 user should know

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A word to the wise

As we have seen in the past, sometimes these big updates can cause problems for older devices. Owners of the iPhone 4 complained of poor battery life and performance issues after updating to iOS 7. We all like new things, but it may actually be better to hold off on updating for a week or two if you own an iPhone 4S or an iPad 2. This should help you avoid some of the problems that can arise when updating your device.