The WX100 is based around a new 18.2 1/2.3 Exmor R CMOS sensor which promises to deliver reduced noise for better low-light performance in conjunction with the BIONZ processor.

Yes, it is an 18-megapixel camera, but more pixel count doesn't necessarily mean you will get better picture results.

The specs for the Sony WX50 and WX150 are virtually identical except for the optical zoom range (5X Carl Zeiss lens vs 10X Sony G lens) and sensor size (16MP vs 18MP).

Sony has produced the world’s slimmest and lightest compact digital camera with a 10x optical zoom and the Cyber-shot WX100 certainly lives up to its billing.

Sometimes it's hard because it's such a wide angle and I can't get closer to what I want to shoot, but overall I'm happier with the image quality without any zoom.

Sony claims this is the thinnest (17.5mm) and lightest (108g) compact with a 10x optical zoom lens and having had some hands-on time with the WX100, we can confirm that it is nothing if not small and light.

For example if you want to emphasize your subject in the shot, normally you would adjust your aperture to blur out the background.

While the inclusion of 10x optical zoom in the WX100 will give it an edge over any smartphone out there, we’re not convinced that this feature alone is worth the additional £280 you will need to lay out to buy the WX100.

While I liked a few of the features on the old model better like the placement of the zoom buttons and picture display button - this is a great little camera.

In these terms the camera lives up to its promise, as it is both thin and light, to such an extent that you can at time almost forget you are holding it.

It is lightweight at 133 grams - most cameras with this much performance weigh in at closer to 180 grams.