Pebble Core: everything you need to know

When you hear the name Pebble you'll usually be imagining an e-ink smartwatch with a mega-long battery life and compatibility with iOS and Android. However, with the new Pebble Core there's no watch in sight… In fact, there's not even a screen.That's because the Core is a standalone device that's designed to let runners shed the phone and just run with a small wearable clipped about their person - and for a pretty cheap price too.So is this the ultimate runners' wearable, giving accurate