FitBit today announced the Charge 3, a fitness tracker that ups the ante thanks to a larger screen and smartwatch-like features. The Charge 3 has a heart rate monitor and tracks the rate 24/7. The software can show owners their heart rate zones in real time as they work out to ascertain if they are at a fat burn, cardio, or peak rate. The Charge 3 can automatically recognize a number of activities, such as runs, walks, and bicycle rides, and it tracks more than 15 different goal-oriented exercises. The Charge 3 is waterproof to 50 meters, making it an excellent option for swimmers. The wearable also tracks sleep patterns and female health for a more complete picture of well-being. The Charge 3 runs a handful of apps, including a calendar, the weather, and FitBit Pay. The wearable integrates with the owner's Android phone or iPhone to provide incoming call and message alerts, and can be used to send quick message replies on Android. Other features include a larger, sharper touch screen, aluminum design with Gorilla Glass 3, and up to seven-day battery life. The Charge 3 comes in various sizes and colors. It costs $150 and is available for pre-order on FitBit.com.