Fitbit has unveiled its latest bit of wearable technology with the Force bracelet. The activity and sleep tracker features an OLED display, and is programmed to track steps, floors climbed, steps taken, calories burned, hours slept and interestingly, the quality of sleep. The Force bracelet can connect to iOS and Android devices using the built-in Bluetooth, and the coinciding Fitbit app lets you track your progress across multiple platforms. Fitbit will also be adding call notifications to the Force for those with an iPhone 4S or higher running iOS 7. The Force bracelet is available now from Fitbit for $129 USD.