So how has Apple done? And should you buy one of the new iPads or the new 27-inch iMac with its super-high resolution display?

Some will say these are just gentle upgrades to existing products, and in the case of the smaller iPad Mini 3, they might be right. Although there's the splendid addition of the Touch ID fingerprint sensor which is so useful on the iPhone, the insides of the Mini 3 are largely unchanged.

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iPad Air 2, iPad Mini 3 and new iMac hands-on review

The A7 processor was such a big step up when it was launched last year that it probably didn't need an upgrade just yet, but it does make the need to replace your Mini less urgent.

Apart from Touch ID and the introduction of the gold colourway, the only other pressing reason to replace an iPad Mini 2 is if you want a bigger capacity iPad. Now, a 64GB and 128GB storage model are much cheaper – clocking in at the same price as last year's 32GB and 64GB versions respectively. For many, though, these will be reason enough and if you have a first-gen iPad Mini, the steps forward are considerable.

There's much more reason, though, to rush out and buy the new iPad Air 2 – even if you have the current model. After all, at 30g lighter and 18% thinner than the already slim and light iPad Air, this is arguably the most desirable tablet yet.

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Apple iPad Air 2 & iPad Mini 3 features, specs, photos and release date

So light, so thin and with that glorious narrow bezel introduced on the iPad Air, this is a fantastic, powerful and gorgeous tablet. That bezel, by the way, can be that narrow because Apple has a feature called Touch Rejection. It means that the software is clever enough to ignore an errant thumb that strays onto the edge of the touchscreen.

Finally, there's the iMac. At £1,999 it's far from cheap though it includes Apple's excellent Fusion Drive as standard. Fusion Drive is a clever system that employs flash drive memory and hard drive in tandem for the quickest results.

But of course the real standout is the screen. It's staggeringly high-resolution and looks glorious from every angle. The screen on the smaller 24-inch iMac is unchanged, so there are cheaper ways to buy into a Mac desktop.

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Apple announces iMac with Retina 5K display, new Mac Mini

And let's not forget that lots of computer makers are focusing just on laptops now, so a strongly upgraded desktop is welcome.

Apple's products are delightful – and never more so than this. Those who purchased an iPad or iMac recently may feel they can wait, but many others will be rushing to upgrade.