Designed by SMS Technology Australia the M500 claims to be the world's smallest mobile phone - as it is incorporated into a wristwatch, we believe them.

It's futuristic, it's bonkers and we want one!

With a 1.5-inch colour touchscreen, full SMS functionality, full Bluetooth compatibility, USB connectivity and charging, 199 number memory storage, MP3 and MP4 player, 128MB memory, 80 hours standby time and 200 minutes of talk time this earns its space on your wrist with ease.

The water-resistant M500 works on GSM Quadband frequencies with means anyone who has a GSM SIM card to use the M500 in any country around the world.

It looks like rather than talk into the watch (which we would actually love, in a Secret-Service kind of way) you actually carry out your conflabs on a headset courtesy of the M500's Bluetooth compatibility.

Pricing and availability is to be confirmed (rumoured cost is around 500 quid), you can sign up on the site for updates, link below.