In case you've been shielding yourself from social media, the Apple Watch debuted today in true Apple fashion: a mysterious press conference in Silicon Valley, where CEO Tim Cook spouted off stats to the tech-obsessed. Cook also introduced the new MacBook (which is available in gold — you know Kim K will be the first to have her hands on that bad boy), and a streaming service called HBO NOW (learn more about that here). Anyway, back to the fancy time-piece, which will casually run you from £299 to £13,500. While we've been curious about it since rumours started last year, we were always a little skeptical about what it actually does. But now, we're totally sold — and here are three things you'll be able to do with the Apple Watch...