Ios 8 will be the death of me?

Okay, so to download Ios 8 on my iphone 4s I need 4.6 gb of data, I have 3.6 and am unable to delete anything else, seriously, I deleted all my songs, contacts, photos and apps, and its still not enough. What do I do? Someone please help!

What to do before updating to iOS 8

Here are the steps you should take before you click yes on that update alert.
1) Check your device is compatible with iOS 8

The following iPhones, iPads and iPods are compatible with iOS 8 - although that doesn't mean that they will be able to take advantage of every feature.

iPhone 6 Plus
iPhone 6
iPhone 5s
iPhone 5c
iPhone 5
iPhone 4s
iPad Air
iPad 4
iPad 3
iPad 2
iPad mini 2 with Retina display
iPad mini
Fifth-generation iPod touch

iOS 7's AirDrop feature, for instance, was limited to the iPhone 5 and later, the iPad 4, and the most recent iPhone and iPad mini. We're not yet sure which iOS 8 features will be device-limited, with the exception of Apple Pay (which is obviously restricted to the iPhone 6 and iPhone 6 Plus, which have the necessary NFC hardware).

For more information, read our guide to which iPhones and iPads are compatible with iOS 8.
2) Back up your data

Use iCloud or iTunes to back up your iPhone, iPad or iPod touch. If you don't do this, and you find that messages or photos disappear from your iPhone after the update then that's your look out. Beware: the backup will include purchased music, TV shows, apps, and books; photos and video in the Camera Roll; and device settings, but it won't include anything you synced from your computer. To re-sync that stuff you'll need to sync with iTunes. For that reason we recommend backing up to your computer as well as iCloud.
3) Make room on your device

If you have limited space on your phone you may not be able to perform the update - it's a fairly hefty download. To get ready, you can remove content you no longer need, which is a good idea in any case. See our guide to making room on your iPhone or iPad.

Our iPhone required 5.8GB of space to be available in order to perform the update - since our iPhone is only 16GB this wasn't really an option so we opted instead to update via iTunes on our Mac. More on that process below.
4) Update iTunes on your Mac or PC

A couple of years ago people updated iPhones to iOS 6, only to discover that their iPhone or iPad could no longer talk to their Macs because they were running an old version of iTunes. This was made worse if they couldn't actually update to a version of iTunes that was compatible because they were running Mac OS X Leopard on their Macs. This was a big enough issue for Apple to actually start selling Snow Leopard again because it was the only way to get the Mac App Store - which is the only way to update to later versions of the Mac OS. Read: How to get Snow Leopard.
5) Plug in your iPhone or iPad

Make sure you plug in your device to a power source. If you run out of battery mid download you may corrupt the iPad or iPhone.
6) Make sure you're connected to Wi-Fi

Be sure that you are downloading over Wi-Fi and not via 3G or 4G, or you may end up using up all your data for the month. Read our guide: how to stop running out of cellular data.

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