Asus ZenWatch flaunts its stylish metal body and curved screen (pictures)

The Asus ZenWatch is the first smartwatch using Android Wear -- Google's operating system designed specifically for watches.

Made of metal, curved glass and real leather, it's an attractive device and is due to go on sale later this year for "around €199", although detailed pricing and availability in the UK, US and Australia is yet to be announced. That Euro price converts to around $260 or AU$280, and Asus expects it'll be roughly £200 in the UK.

Its slim, metal design and leather strap makes it one of the prettier smartwatches around.

It's certainly an improvement over the slew of square, black watches we've already seen.

It has an attractive curved Gorilla Glass 3 screen.

Its Android Wear software uses the same "cards" interface found on smartwatches from LG and Samsung.

The strap is made from real leather, which Asus says is hand-stitched.

It's water-resistant, not waterproof -- Asus says it'll be fine in the rain but don't take it swimming.

It has a quick-release clasp on the strap, but the watch uses standard strap connectors, so you can swap it easily for any compatible watch strap you like.

Asus has a couple of pieces of extra software for it, including Wellness, which tracks your physical activity and, somehow, your mood.

Asus was light on details at the time of writing about exactly how the watch is supposed to be able to determine how stressed you are, but I'm interested to see if it works.

The screen has a 320x320-pixel display.

Android Wear lets you see incoming calls, texts as well as things like email and calendar notifications.

You can control your music and video too.

I'm quite keen on the rose-gold colour.

It needs to sit in a cradle in order to charge.