With 14 in-built exercise modes to record all types of activity data (walking, running, cycling, treadmill, etc) the Stride should encourage healthy exercise. With automatic wrist-based heart rate tracking, and step counting, you can monitor your fitness goals easily. Your kids, tweens or teens will love the vibration alerts that remind them to move (how healthy is that!) or the alerts for incoming calls and texts. They won't want to take it off, and that's good because it is IP67 waterproof for swimming and showers. So it's a perfect boy's or girl's watch or gift for your tech savvy teenager.