The design of the G Flex is striking although we've had to try hard not to call it the banana phone. It's certainly one you can show off to your mates down the pub but the novelty quickly wears off.

A big problem is the sheer size of the device. The curve is supposed to fit your face and your hand better and while this may be technically true, the G Flex is too big for this to matter.

It's really a two-handed phone and one which will poke its head out of most coat pockets. See also: Sony Xperia Z1 Compact review.

LG's RearKey makes another appearance which is a marmite feature. Surrounding it is a grey/silver plastic cover which has a self-healing coating.

It seems to work with only a few hairline marks which we can only find if we look hard, but what it's like in six months' time is another matter and something we can't predict.

If you don't mind the size of the screen then the real question is does the curve bring any real benefit? Well we don't think it's big enough to make videos or gaming more immersive so the tech should probably be reserved for TVs.

It does give vertical lists a more 3D feel but that's got to be filed in the take it or leave it category.

What's disappointing is that the display has a 720p resolution which on a 6in screen which doesn't look great. We expect more from a high-end smartphone.

LG G Flex: speed and performance

Like the LG G2, there's a competent Snapdragon 800 processor so performance is very good. We've found the phone to be reliably smooth.

For the price, storage is a decent 32GB but there's no microSD card slot for adding more. We approve the inclusion of both NFC and Infrared.

The camera remains the same as the G2 which is no bad thing with its optical image stabilisation and added ability to shoot video in up to 4k resolution.

LG adds plenty of software features, some of which you won't discover unless you search the settings menu. KnockON switches the screen on with a double tap and that's just the start.

There's lots of customisation on offer and even though the screen is huge, the navigation buttons can swiped to one side and a button for the notifications bar added.

An advantage of the large screen size is the ability to run two apps side-by-side.

A big phone means the opportunity to install a big batter and that's exactly what LG has done. The G Flex comfortably lasts a couple of day with regular usage. Only users watching a lot of video of gaming constantly will need to charge every night.

The G Flex has some good elements but the bottom line is that the device itself is too big and the curved screen, aside from being just 720p, doesn't bring any real benefit. We award three and a haf stars.

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