Watch by Fitbit The upgrade your regular watch didn't want you to see Up to seven day battery life 15+ specific workout modes such as run, swim or yoga Track heart rate and discover your cardio fitness level Automatically tracks and saves any physical activity Monitor sleep stages, length and quality Personalised breathing sessions based on heart rate GPS and wireless connectivity Receive text, mail and app alerts from your smartphone 5ATM – water resistant to 50 metres (160 feet) Think showering and swimming Presented in a branded box