iOS 8: Should you wait to update?
The final version of iOS 8 comes out later today just days before the release of the iPhone 6 and iPhone 6 Plus, but should you download iOS 8 now, wait or perhaps even stick with iOS 7? We take at look which devices should run it fine and which ones are worth waiting before updating.
We haven't been able to test every single device in this list yet, so please share your experiences in the comments if you do update.
iOS 8 Support: Can I download iOS 8?
The list of devices that support iOS 8 is surprisingly long. It's impressive that Apple continues to support so many older devices with software updates, though that doesn't necessarily mean you should update straight away. Here's the full list.
iPhones: iPhone 4S, iPhone 5, iPhone 5C, iPhone 5S, iPhone 6, iPhone 6 Plus
iPads: iPad 2, iPad 3, iPad 4, iPad Air, iPad mini, iPad mini 2
iPods: iPod Touch
Devices that miss out include the iPhone 4, but amazingly the iPad 2 is still in the mix. Clearly there remain plenty of iPad 2s out there that Apple wants to keep going.
Probably don't download: iPhone 4S, iPad 2, iPad mini & iPod touch 5
It's great that Apple continues to support these older devices, but we'd advise against updating to iOS 8 immediately and perhaps considering sticking with iOS 7. iOS updates generally add more features, particularly background updates, that drain battery life faster and really hit performance.
This is a particular problem for older devices, and the iPhone 4S, iPad 2 and iPad mini (1st-gen) are basically based on the same core components.
The iPhone 4S and its A5 processor and 512MB of RAM is the most problematic. Apple's OS doesn't need huge amounts of RAM to run smoothly, but it's still half as much any current devices and that will show. The iPad 2 has the same core specs, too.
The iPad mini (1st-gen) uses the second-generation A5 processor, which is more efficient, but it's no more powerful than the other two. The 5th-gen iPod touch is an iPhone 4S on the inside, so the same applies to it.
Wait and see: iPad (3rd-gen)
The third-generation iPad, otherwise known as the first iPad with Retina display or just iPad 3, is a strange beast. It was replaced within less than a year by the iPad 4, and the reason lies in the processor. The 3rd-gen basically runs a super-charged (that's probably being a tad generous) version of the A5 chip, dubbed A5X.
The tricky bit is that the GPU is much more powerful than the iPad 2 and iPhone 4S (mainly so it could drive the extra pixels), but the CPU is more or less the same -- a 1GHz dual-core based on the ARM A9 design.
Chances are it should run iOS 8 well enough, mainly thanks to the extra graphics power handling the glossier effects debuted in iOS 7, but we'd wait before committing.
Should work fine: iPhone 5, iPhone 5C and iPad 4
None of these devices should have any problems running iOS 8. They run iOS 7 comfortably and iOS 8 isn't much more taxing on a basic level. The only question, particularly for older iPhones, is whether the battery is up to the task.
iOS 8 doesn't appear to be that different, but battery problems immediately after new software releases are common. They normally settle down after subsequent updates, or after a hard reset, but it might be worth waiting a few days before updating if you want to be careful.
Go ahead and download: iPhone 5S, iPad Air
and iPad Air mini 2
We've been running iOS 8 on an iPhone 5S since the very first beta. Early betas were very buggy, but we've had no problems at all recently. Battery life is fine and it's stable. The iPad Air and iPad mini 2 are based on the same core chip, so should run just fine.
Next, read our new iOS 8 tips, tricks and secrets guide