Arguably the biggest surprise product debut from Apple in 2012 is the new fourth-generation iPad, a tablet that replaces its predecessor and doubles its performance after less than a year on the market.

Is your vintage 2012 third gen tablet now obsolete?

It comes with retina display features advanced Wi-Fi that`s up to twice as fast as any previous-generation iPad. And access to more mobile data networks around the world makes it fast in more ways than one, and in many more places. So get now.

The pricing of the iPad 4 is the same as the iPad 3 when it came out, which is good news – if you want to get an iPad 3 , that is. Yes, the previous model is now cheaper, and it's a better purchase in my opinion.

During the event where the iPad Mini was announced, Apple also introduced a new normal-sized iPad. We compared this new iPad 'Retina' with the last iPad. Then referred to as the 'new' iPad, we will now call it iPad 3, and the Retina will be called the iPad 4.

Apple Ipad 4 has 9.7 inch display runs on iOS 6, upgradable to iOS 6.1.3 OS. It is powered by Apple A6X, Quad Core, 1.4 GHz processor. Apple Ipad 4 prices starting at $799 for the Wi-Fi only model.

Good display resolution; Good battery support; Powerful processor; Internal memory of 128 GB

Front camera of 1.2 MP; Heavy in weight

Verdict Taken on its own, the fourth generation iPad is a triumph of engineering and design: it feels like a true laptop replacement for many, even if it offers only a minimal update over the third generation model that only serious spec heads would notice.

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Apple is offering some interesting upgrades in its iPad 4 and it is definitely one of the best choices if you are considering buying a tablet. However, iPad4 didn't offer the kind of upgrade that will get you to give up your nice iPad 3 and get the new version for a higher price tag.

Fast performance; clear camera and screen

Outdated UI; the upgrade from the third generation is not that great; can't customize the homepage

Engadget - Tim Stevens : "Twice as fast, better battery life, same cost. What more do we need to say? The new iPad is a hit on all fronts -- but it of course won't be received that way by all.

The iPad 4 feel like something akin to "Schr?dinger's iPad", neither old nor new, not a minor fix and yet not a full update. Apple has always waited a year if not more to update iOS devices in the past, and the iPad 4 coming only 7 months after the iPad 3 seems only to compound that feeling.