1.Nokia MORPH

Designer: Nokia

The Nokia Morph concept dates back to 2008, but it's still one of the more intriguing designs around. It features a bendable, stretchable screen and transparent components, using nanotechnology that enables it to both adapt its shape and become rigid when needed.Stretched out it's the size of a tablet, but it can be folded into a smaller, thicker phone or into a wrist-worn bracelet.

The Morph has other tricks up its sleeve too. It can harvest solar energy to keep itself powered and it has a superhydrophobic surface, which repels water and dirt. Plus, it has a haptic layer on the front, so suddenly touchscreen buttons can feel raised.This is the stuff science fiction is made of, so can someone please put us in cryosleep and wake us up when it becomes science fact?

2.IPHONE NEXT G

Designer: Samuel Lee Kwon

Let's get the obvious out of the way first: Apple will never make a handset like this 'iPhone Next G' concept. It's unlikely any major manufacturer will, but it's different enough that we'd love to see someone try.The concept shows a wearable phone that's little more than a bracelet, with just a tiny screen, but a built in projector that can plaster a larger display over your palm.

The size of the display will presumably be limited by the size of your hand and interacting with a projection is unlikely to be as comfortable as tapping a physical screen - plus you'll never be able to hold it two handed.But it allows the device to remain far more compact than any current smartphone and makes it more of an extension of your body, which is a direction we can see technology ultimately going in, albeit more through implants than projections.

3.MOBILE SCRIPT

Designer: Mukomelov Studio

The Mobile Script concept uses a (presumably) flexible screen, which can be extended outwards to turn your phone into a tablet. Aside from being a two-in-one device it's also covered with a 'nano material', which can convert sunlight into energy, keeping its battery alive for longer.The long, thin shape of the phone is unusual, but in a world of identical rectangles 'unusual' is something we need more of, so we could see it catching on.

4.WINDOW PHONE

Designer: Seunghan Song

Not to be confused with Windows Phone, the Window Phone concept envisions a handset that's completely transparent (like a window, get it? Oh, you did? Sorry...).It also transforms its appearance based on the weather, becoming clear on a sunny day and having an icy sheen on a snowy day for example.

We're not really sure what the point of that is, but we're all for a transparent phone that would look great and reduce the hazards of texting while walking (if we walk like some people in the adverts and hold our phone straight in front of us).Other questionable features include the ability to blow on it to steam the screen up, allowing you to then write by hand in the steam, presumably just to get maximum mileage out of the window concept.

We're just wondering how far the Windows analogy can be taken... Could it suddenly turn into a blue screen paperweight at times, just to keep you on your toes?

5.NEXUS P3

Designer: Enrico Vicari and Giuseppe Avanzato

The Nexus P3 concept reminds us in some ways of the LG G5, as it has a slot which you can add extra hardware to. But the approach is slightly different, with the port sliding out to house a QWERTY keyboard or a gamepad. Or, if you don't want any additional control options, you can put a massive 4,700mAh battery inside for long-lasting fun.

QWERTY phones are rare and there hasn't been a mainstream smartphone with a built in gamepad since the Sony Ericsson Xperia Play, so the Nexus P3 would fill two niches instantly, as well as presumably having amazing battery life, which is something almost all handsets lack.

6. AUO phone

Designer: AUO

There's a huge number of bendable concept phones, but an unnamed one by AUO actually uses its bendable nature as a control method. For example, you could twist the edge of the screen to turn a page in a book or push the screen to zoom in on an image.

All that bending and twisting sounds like a recipe for disaster, which is why the concept sports an apparently unbreakable display. It's only 720p, but the concept, which exists as a working prototype (unlike most others on show here), can apparently be adapted to work with higher resolution screens.

7. Asus Z2 Poseidon

Designer: Designed By Hege

Most concept phones are about innovative new designs and out of the ordinary features, but the Asus Z2 Poseidon focuses on raw power, sporting an Intel processor, 6GB of RAM and a massive 6.0-inch QHD screen.

In the mind of its creator it offers PC-class performance, so you can play games way beyond anything you'd see on a typical smartphone. A 6000mAh battery ensures it can last for more than ten minutes of that and a liquid heat pipe and air cooling system stops it getting too hot.

With four front-facing speakers as well the Asus Z2 Poseidon is clearly a media powerhouse and while it's not designed to look attractive, it's certainly not ugly, with almost zero bezel and an aluminium shell.

8. Philips Fluid

Designer: Dinard da Mata

The Philips Fluid is similar to the Nokia Morph in some ways, but far less ambitious, which means we might actually see something similar in the near future.

Like the Nokia Morph the Philips Fluid can be rolled into a bracelet, or just used as a standard smartphone. It's incredibly slim, so you won't feel like you're wearing a phone on your wrist and it uses a high-resolution OLED screen, but it lacks the nanotechnology and other (admittedly, made-up) smarts of the Nokia Morph.

9. Mozilla Seabird

Designer: Billy May

Projector phones aren't an entirely new idea. In fact, they already exist in physical form through the likes of the Lenovo Smart Cast. But that only has one projector where the Mozilla Seabird has two, which when attached to a dock allows you to project a large screen at a wall and a keyboard onto the surface the dock's standing on.

The Seabird also has an embedded Bluetooth/IR dongle, which can be used as both a headset and a control device, letting you navigate and interact with the phone by moving it around above the screen. It seems like it would be a niche handset, but for business users especially it could be useful.

10. Atlas Kinetic

Designer: Ricardo Baiao

The Atlas Kinetic isn't that smart, as it only contains fairly basic phone features, but it uses kinetic energy to charge, so you can juice it up just by moving it. In a world where most smartphones struggle to last much more than a day a handset that you can charge up anywhere, any time would be enormously useful.

It also looks good, with a unique design and a metal and glass finish. You might not think a kinetic solution would generate enough energy to power a phone, but while the Atlas Kinetic is just a concept there is real research in this area, so it's something that we could see one day.