Apple today announced Fitness+, which works with Apple Watch, launching Monday, December 14. Apple Fitness+ is a streaming service which streams workouts to iPhone, iPad, and Apple TV. Apple Fitness+ will launch with 10 workout types, including High Intensity Interval Training (HIIT), Strength, Yoga, Dance, Core, Cycling, Treadmill, Rowing, etc. It is priced at $10/m or $80/yr.