Sony's waterproof Xperia X Performance comes wrapped in metal (pictures)

The Xperia Performance sits at the top of Sony's new line of three Xperia X smartphones, including the Xperia X and the XA. As the name suggests, the Performance is the most powerful of the three, packing a top-end Qualcomm processor. It's also the only one of the bunch that has the waterproof design we've come to expect from Sony.

There's no word on pricing as yet for the phone, and Sony hasn't been exactly clear on where it will be on sale. So far, we've been told it'll go on sale in the US and Asia, but we'll update when we hear about wider availability.

There's a 13-megapixel camera on the front.

The design is unmistakably Sony.

The power button on the side also acts as a fingerprint scanner.

You'll find a dedicated camera shutter button on the side as well.

It runs the latest Android Marshmallow software.

The main camera has a 23-megapixel resolution -- that's the same you'll find on the top-end Xperia Z5.

The X Performance is the only model in the new X line that has waterproofing.

The phone comes in these three colours.