Time capsule: here are the best devices from MWC... from 5 years ago

Back then, we were already starting to see the formation of the wondrous device that is the modern smartphone. But also, phone makers had some crazy ideas. Here is how it all looked like then.

Specs | Review

One of the biggest launches at the Mobile World Congress 2011 was the LG Optimus 3D, the first 3D phone, equipped both with a parallax, 3D screen and a dual camera setup that allowed you to capture 3D videos. We were mesmerized by the effect initially and wondered whether this would start a new future of 3D devices, but boy, were we wrong. 3D was a passing fad, replaced by much more immersive technologies like virtual reality.

Specs | Review

The Xperia Play was a phone with a slide-out gamepad. They don't make 'em like this anymore. It was the first and only one of its kind, and we remember how it brought dreamy thoughts of reviving our dreams of a gaming career. Yet, this likable 4-inch phone was a bit on the chubby side, and worse, it came with a limited selection of games. And it just did not sell all that well. Ultimately, Sony decided to never make a successor to this phone and left us with paltry iPhone and Android gamepad cases that only partially have that 'gaming phone' feel.

Specs | Review

The 4.3" Samsung Galaxy S II was a revelation: after a good start with the Galaxy S in 2010, the S II really brought attention to the series. It was selling like hotcakes, a thin and good-looking phone with an extremely powerful dual-core processor (a first for Samsung), it ran on TouchWiz. And not just any kind of TouchWiz, but one of the first iterations that brought some not so useful features that did, however, seemed futuristic enough to capture everyone's attention. The camera was also remarkable.

Palm was a company built on a dream. Its Internet-centric web OS, its innovative interface with card-based task manager, all of the culture was around creating an outstanding phone that would be better than anything else on the market. Including the iPhone.

Unfortunately, the dream was not meant to be. The first two Pre phones made by Palm were sluggish, lacked some features, had some crappy marketing, and ended up selling poorly. Palm ran out of money and was forced to seek to get acquired. HP bought the company, but after months of development, the HP Pre 3 was quickly discontinued after the company panicked over slow sales of the earlier-launched HP Veer. And that was the sad end for the Palm dream.

HTC Salsa (Specs, Review) | HTC ChaCha (Specs, Review)

The first Facebook phones were nothing more than just a fancy Android phone with a dedicated blue Facebook button. Fast forward to today's growing addiction with Facebook, this does not seem like that controversial of an idea, does it? The Facebook phones that launched in 2011, however, were decidedly mediocre, both mid-rangers and one with a physical keyboard that even then was seen as a sign of the past rather than the future.

HTC Desire S Specs | Review

2011 was a year when HTC was at its prime: with booming sales, HTC phones looked stylish and set the tone for design. While the HTC Desire S that arrived to MWC 2011 was not the company's flagship phone, it was one of the first metal devices that signaled the times that are to come. These days, we have much slimmer, better looking phones and metal has become a symbol of a device's premium status.

Do you know that we basically had no dual-core phones until 2011? The move to dual-core designs provided a huge leap in performance, and chip makers agree that the jump was much more significant than the jump from dual-core to quad-core, and then octa-core designs. You can take a look at a quick comparison that showed the performance of the best phones at the time right here.

The 'Android Market', now Google Play Store, had just started and it was one of the key elements to Android's success as a platform. Developers embraced it and while in the beginning it had to do some tough catch-up with Apple's App Store, it seems to have managed to do that quite successfully. The Google Play Store these days has over 1.5 billion apps.

If you want to feel like you are in a time machine, simply type in www.phonearena.com/mwc2011 to get immersed in the atmosphere of the tech world 5 years ago.